Product Information

MIC261203YJL-EV

Product Image X-ON

Power Management IC Development Tools
Manufacturer: Microchip


Price (Ex GST)

From 63.349

MOQ: 1 Multiples:
Pack Size :   1
Availability Price Quantity
0 - Global Stock


Ships to you between Fri. 11 Dec to Thu. 17 Dec
Calender

MOQ : 1
Multiples : 1

Stock Image

MIC261203YJL-EV
Microchip

1 : $ 63.3751

Buy
0 - Global Stock


Ships to you between Fri. 11 Dec to Thu. 17 Dec
Calender

MOQ : 1
Multiples : 1

Stock Image

MIC261203YJL-EV
Microchip

1 : $ 75.8717
5 : $ 66.2295
10 : $ 63.349

Buy
         
Manufacturer
Microchip
Product Category
Power Management IC Development Tools
RoHS - XON
N Icon ROHS
Product
Evaluation Boards
Type
Voltage Regulators - Switching Regulators
Tool Is For Evaluation Of
Mic261203
Input Voltage
4.5 v to 28 V
Output Voltage
0.8 V
Description/Function
Evaluation Board
Output Current
12 A
Packaging
Bulk
Brand
Microchip Technology / Micrel
For Use With
Mic261203
Maximum Operating Temperature
+125 C
Minimum Operating Temperature
- 40 C
Show Stocked Products With Similar Attributes. LoadingGif
Image Description
Stock Image MIC26600YJL-TR
Microchip Technology Micrel Voltage Regulators - Switching Regulators
Stock : 1000
Stock Image MIC26603YJL-TR
Voltage Regulators - Switching Regulators
Stock : 5
Stock Image MIC26901YJL-TR
Voltage Regulators - Switching Regulators
Stock : 1062
Stock Image MIC26603YJL-EV
Power Management IC Development Tools
Stock : 8
Stock Image MIC26601YJL-TR
Voltage Regulators - Switching Regulators
Stock : 1000
Stock Image MIC26601YJL-EV
Power Management IC Development Tools
Stock : 8
Stock Image MIC26400YJL-TR
PMIC; DC/DC converter; Uoper:4.5÷28V; Uout:0.8÷5.5V; VQFN28; buck
Stock : 688
Stock Image MIC2619YD6-TR
PMIC; DC/DC converter; Uoper:2.8÷6.5V; Uout:2.8÷35V; TSOT23-6
Stock : 5708
Image Description
Stock Image MIC2224YML-EV
Power Management IC Development Tools Eval - 2MHz PWM DAC power supply
Stock : 2
Stock Image MIC2211-PSYML-EV
Power Management IC Development Tools Eval - Dual mCap LDO
Stock : 1
Stock Image MIC2210-PSYML-EV
Power Management IC Development Tools Eval - Dual mCap LDO w/ Open Drain
Stock : 5

MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 Micrel, Inc. MIC261203 10A Evaluation Board them with the values that yield the desired output voltage. Output Voltage Once R4 is selected, R7 can be calculated using: The output voltage on the MIC261203 evaluation board is R4 ? V adjustable. It is set by adjusting the feedback resistors (R4 REF R7 = and one of R5, R6, R7, R8, R9, R10, R11, or R12) and V ? V OUT REF can be calculated as follows as an example: R4 V = V ? (1 + ) For V = 0.8V: OUT REF REF R7 R4 ? 0.8V R7 = V ? 0.8V where V = 0.8V. REF OUT The output voltage above is set at the factory for a 1.2V The output voltage should not be set to exceed 5V due to output, but it can easily be changed by moving the jumper the 6.3V rating of the output capacitor and online to a respective position to get an indicated voltage on the regulation limitations. Please refer to the ?Setting Output board. If a desired voltage is not shown on the board, it is Voltage? section in the MIC261203 datasheet for more easily modified by removing R4 and R7 and replacing information. July 2011 2 M9999-071511-A MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 Micrel, Inc. MIC261203 10A Evaluation Board them with the values that yield the desired output voltage. Output Voltage Once R4 is selected, R7 can be calculated using: The output voltage on the MIC261203 evaluation board is R4 ? V adjustable. It is set by adjusting the feedback resistors (R4 REF R7 = and one of R5, R6, R7, R8, R9, R10, R11, or R12) and V - V OUT REF can be calculated as follows as an example: R4 V = V ? (1 + ) For V = 0.8V: OUT REF REF R7 R4 ? 0.8V R7 = V - 0.8V where V = 0.8V. REF OUT The output voltage above is set at the factory for a 1.2V The output voltage should not be set to exceed 5V due to output, but it can easily be changed by moving the jumper the 6.3V rating of the output capacitor and online to a respective position to get an indicated voltage on the regulation limitations. Please refer to the ?Setting Output board. If a desired voltage is not shown on the board, it is Voltage? section in the MIC261203 datasheet for more easily modified by removing R4 and R7 and replacing information. July 2011 2 M9999-071511-A Micrel, Inc. MIC261203 10A Evaluation Board Evaluation Board Performance Efficiency (V = 12V) Efficiency (V = 12V) IN IN Efficiency (V = 5V) IN vs. Output Current vs. Output Current vs. Output Current 100 100 100 95 95 95 5.0V 5.0V 3.3V 90 90 90 3.3V 3.3V 2.5V 2.5V 2.5V 85 85 85 1.8V 1.8V 1.8V 1.5V 80 80 1.5V 80 1.5V 1.2V 1.2V 1.2V 75 1.0V 75 75 1.0V 1.0V 0.9V 70 0.9V 0.9V 70 70 0.8V 0.8V 0.8V 65 65 65 60 60 60 55 55 55 V = 12V V = 12V V = 5V IN IN IN 50 50 50 036 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) Thermal Derating* Thermal Derating* Thermal Derating* vs. Ambient Temperature vs. Ambient Temperature vs. Ambient Temperature 18 18 18 16 16 16 1.8V 2.5V 14 14 14 12 12 12 0.8V 3.3V 5V 10 10 10 8 8 8 2.5V 6 6 6 V = 12V IN V = 5V IN 4 4 4 V = 24V IN V = 2.5, 3.3, 5V OUT V = 1.8, 2.5, 3.3V OUT V = 0.8, 1.2, 2.5V 2 OUT 2 2 0 0 0 -50-25 0 25 50 75100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 AMBIENT TEMPERATURE (?C) AMBIENT TEMPERATURE (?C) AMBIENT TEMPERATURE (?C) Die Temperature* : The temperature measurement was taken at the hottest point on the MIC261203 case mounted on a 5 square inch 4 layer, 0.62?, FR-4 PCB with 2oz finish copper weight per layer, see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient temperature and proximity to other heat emitting components. July 2011 3 M9999-071511-A OUTPUT CURRENT (A) EFFICIENCY (%) EFFICIENCY (%) OUTPUT CURRENT (A) OUTPUT CURRENT (A) EFFICIENCY (%)MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 Micrel, Inc. MIC261203 10A Evaluation Board them with the values that yield the desired output voltage. Output Voltage Once R4 is selected, R7 can be calculated using: The output voltage on the MIC261203 evaluation board is R4 ? V adjustable. It is set by adjusting the feedback resistors (R4 REF R7 = and one of R5, R6, R7, R8, R9, R10, R11, or R12) and V - V OUT REF can be calculated as follows as an example: R4 V = V ? (1 + ) For V = 0.8V: OUT REF REF R7 R4 ? 0.8V R7 = V - 0.8V where V = 0.8V. REF OUT The output voltage above is set at the factory for a 1.2V The output voltage should not be set to exceed 5V due to output, but it can easily be changed by moving the jumper the 6.3V rating of the output capacitor and online to a respective position to get an indicated voltage on the regulation limitations. Please refer to the ?Setting Output board. If a desired voltage is not shown on the board, it is Voltage? section in the MIC261203 datasheet for more easily modified by removing R4 and R7 and replacing information. July 2011 2 M9999-071511-A MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 MIC261203 Evaluation Board ? 28V, 12A HyperLight Load Synchronous DC-DC Buck Regulator TM SuperSwitcher IIG General Description Getting Started The MIC261203 DC-DC regulator operates over an input 1. Connect an external supply to the V IN supply range of 4.5V to 28V, and provides a regulated terminal. Apply the desired input voltage to the output at up to 12A of output current. The output voltage V and ground terminals of the evaluation IN is adjustable to 0.8V with a typical accuracy of ?1%; the board, paying careful attention to polarity and device operates at a switching frequency of 600kHz. The supply voltage. An ammeter may be placed switching frequency remains fairly constant with changes between the input supply and the V terminal to IN in input voltage and output load. the evaluation board. Ensure that the supply Micrel?s Hyper Light Load? architecture provides the voltage is monitored at the V terminal. The IN same high-efficiency and ultra-fast transient response as ammeter and/or power lead resistance can the Hyper Speed Control? architecture under medium reduce the voltage supplied to the input. to heavy loads, but also maintains high efficiency under 2. Connect the load to the V and ground OUT light load conditions by transitioning to variable terminals. The load can be either passive frequency, discontinuous mode operation. (resistive) or active (as in an electronic load). The MIC261203 utilizes an adaptive T ripple control ON An ammeter can be placed between the load architecture. An undervoltage lockout feature is provided and the V terminal. Ensure that the output OUT to ensure proper operation under power-sag conditions. voltage is monitored at the V terminal. V OUT OUT An internal soft-start feature is provided to reduce the can be set to 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, inrush current. Foldback current limit and ?hiccup? mode 2.5V, 3.3V, or 5.0V by a jumper. If a different short-circuit protection and thermal shutdown ensures voltage is needed, it can be adjusted by protection of the IC during fault conditions. changing the feedback resistors. See ?Output Note: This evaluation board is for 12A applications. Voltage? section. The datasheet and supporting documentation can be 3. Enable the MIC261203. The EN pin is provided found on Micrel?s web site at: www.micrel.com. on the evaluation board. The output of the Requirements exceeds the MIC261203 turns on when V DD UVLO threshold. The output of the MIC261203 The MIC261203 provides a 5V regulated output for input may be turned off by shorting the EN pin to voltage V ranging from 5.5V to 28V. When V < 5.5V, IN IN ground. A connection on the board provides V should be tied to PVIN pins to bypass the internal DD easy access to the enable pin. linear regulator by a jumper. The output load can either be active or passive. Precautions Ordering Information The evaluation board does not have reverse polarity Part Number Description protection. Applying a negative voltage to the VIN 12A HLL DC-DC Regulator terminal may damage the device. In addition, the MIC261203YJL EV Evaluation Board maximum V operating voltage of the MIC261203 IN evaluation board is 28V. Exceeding 29V on V could IN damage the device. Hyper Light Load and Hyper Speed Control are trademarks of Micrel, Inc. MLF and MicroLead Frame are registered trademarks of Amkor Technology, Inc. Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com M9999-071511-A July 2011 Micrel, Inc. MIC261203 10A Evaluation Board them with the values that yield the desired output voltage. Output Voltage Once R4 is selected, R7 can be calculated using: The output voltage on the MIC261203 evaluation board is R4 ? V adjustable. It is set by adjusting the feedback resistors (R4 REF R7 = and one of R5, R6, R7, R8, R9, R10, R11, or R12) and V - V OUT REF can be calculated as follows as an example: R4 V = V ? (1 + ) For V = 0.8V: OUT REF REF R7 R4 ? 0.8V R7 = V - 0.8V where V = 0.8V. REF OUT The output voltage above is set at the factory for a 1.2V The output voltage should not be set to exceed 5V due to output, but it can easily be changed by moving the jumper the 6.3V rating of the output capacitor and online to a respective position to get an indicated voltage on the regulation limitations. Please refer to the ?Setting Output board. If a desired voltage is not shown on the board, it is Voltage? section in the MIC261203 datasheet for more easily modified by removing R4 and R7 and replacing information. July 2011 2 M9999-071511-A Micrel, Inc. MIC261203 10A Evaluation Board Evaluation Board Performance Efficiency (V = 12V) Efficiency (V = 12V) IN IN Efficiency (V = 5V) IN vs. Output Current vs. Output Current vs. Output Current 100 100 100 95 95 95 5.0V 5.0V 3.3V 90 90 90 3.3V 3.3V 2.5V 2.5V 2.5V 85 85 85 1.8V 1.8V 1.8V 1.5V 80 80 1.5V 80 1.5V 1.2V 1.2V 1.2V 75 1.0V 75 75 1.0V 1.0V 0.9V 70 0.9V 0.9V 70 70 0.8V 0.8V 0.8V 65 65 65 60 60 60 55 55 55 V = 12V V = 12V V = 5V IN IN IN 50 50 50 036 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) Thermal Derating* Thermal Derating* Thermal Derating* vs. Ambient Temperature vs. Ambient Temperature vs. Ambient Temperature 18 18 18 16 16 16 1.8V 2.5V 14 14 14 12 12 12 0.8V 3.3V 5V 10 10 10 8 8 8 2.5V 6 6 6 V = 12V IN V = 5V IN 4 4 4 V = 24V IN V = 2.5, 3.3, 5V OUT V = 1.8, 2.5, 3.3V OUT V = 0.8, 1.2, 2.5V 2 OUT 2 2 0 0 0 -50-25 0 25 50 75100 125 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 AMBIENT TEMPERATURE (?C) AMBIENT TEMPERATURE (?C) AMBIENT TEMPERATURE (?C) Die Temperature* : The temperature measurement was taken at the hottest point on the MIC261203 case mounted on a 5 square inch 4 layer, 0.62?, FR-4 PCB with 2oz finish copper weight per layer, see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient temperature and proximity to other heat emitting components. July 2011 3 M9999-071511-A OUTPUT CURRENT (A) EFFICIENCY (%) EFFICIENCY (%) OUTPUT CURRENT (A) OUTPUT CURRENT (A) EFFICIENCY (%)

Tariff Concession Code
Tariff Desc

Free
8542.31.00 61 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products8542.31.00

Customer Comments  

Log in or register to post comments.

Customer Reviews

No reviews yet.