Product Information

MIC33050-4YHL-TR

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PMIC; DC/DC converter; Uoper:2.7÷5.5V; Uout:1.2V; MLF12; buck
Manufacturer: Microchip


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Manufacturer
Microchip
Product Category
Isolated DC/DC Converters
Kind Of Integrated Circuit
Dc/Dc Converter
Kind Of Package
Reel, Tape
Integrated Circuit Features
Hyperlight Load Architecture
Topology
Buck
Mounting
Smd
Case
Mlf12
Type Of Integrated Circuit
Pmic
Number Of Channels
1
Operating Temperature
- 40 To 125 C
Output Current
0.6 A
Output Voltage
1.2 V
Duty Cycle Factor
80...89%
Frequency
4Mhz
Efficiency
85%
Operating Voltage
2.7 To 5.5 V
Category
Isolated Dc/Dc Converters
Brand Category
Microchip
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MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 Micrel, Inc. MIC33050 Ordering Information Part Number Voltage Temperature Range Package Lead Finish ? MIC33050-CYHL 1.0V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-4YHL 1.2V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-GYHL 1.8V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-SYHL 3.3V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-AYHL ADJ ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free Notes: 1. Other output voltage options available. Please contact Micrel for details. ? 2. MLF is a green RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration ? ? 12-Pin 3mm x 3mm MLF (HL) Fixed Output 12-Pin 3mm x 3mm MLF (HL) Adjustable Output Top View Top View Pin Description Pin Number Pin Number Pin Name Pin Function (Fixed) (Adj) 1 1 VIN Supply Voltage (Input): Requires bypass capacitor-to-GND. 2 2 PGND Power Ground. 3, 4, 5, 6 3, 4, 5, 6 SW Switch (Output): Internal power MOSFET output switches. 7, 8 7, 8 OUT Output after the internal inductor. 9 9 EN Enable (Input): Logic low will shut down the device, reducing the quiescent current to less than 4?A. Do not leave floating. 10 10 SNS Input to the error amplifier. Connect to the external resistor divider network to see the output voltage. For fixed output voltages connect V (internal resistor OUT network sets the output voltage). 11 ? CFF Feed forward capacitor connected to out sense pin. ? 11 FB Feedback voltage. Connect a resistor divider from output to ground to set the output voltage. 12 12 AGND Analog ground. EP EP ePad Exposed Heatsink Pad. Connect to power ground for best thermal performance. M9999-050312-C May 2012 2 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 Micrel, Inc. MIC33050 Ordering Information Part Number Voltage Temperature Range Package Lead Finish ? MIC33050-CYHL 1.0V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-4YHL 1.2V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-GYHL 1.8V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-SYHL 3.3V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-AYHL ADJ ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free Notes: 1. Other output voltage options available. Please contact Micrel for details. ? 2. MLF is a green RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration ? ? 12-Pin 3mm x 3mm MLF (HL) Fixed Output 12-Pin 3mm x 3mm MLF (HL) Adjustable Output Top View Top View Pin Description Pin Number Pin Number Pin Name Pin Function (Fixed) (Adj) 1 1 VIN Supply Voltage (Input): Requires bypass capacitor-to-GND. 2 2 PGND Power Ground. 3, 4, 5, 6 3, 4, 5, 6 SW Switch (Output): Internal power MOSFET output switches. 7, 8 7, 8 OUT Output after the internal inductor. 9 9 EN Enable (Input): Logic low will shut down the device, reducing the quiescent current to less than 4?A. Do not leave floating. 10 10 SNS Input to the error amplifier. Connect to the external resistor divider network to see the output voltage. For fixed output voltages connect V (internal resistor OUT network sets the output voltage). 11 ? CFF Feed forward capacitor connected to out sense pin. ? 11 FB Feedback voltage. Connect a resistor divider from output to ground to set the output voltage. 12 12 AGND Analog ground. EP EP ePad Exposed Heatsink Pad. Connect to power ground for best thermal performance. M9999-050312-C May 2012 2 Micrel, Inc. MIC33050 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ).........................................................6V Supply Voltage (V )......................................... 2.7V to 5.5V IN IN Output Switch Voltage (V )............................................6V Logic Input Voltage (V )??????????-0.3V to V SW EN IN Output Switch Current (I )..............................................2A Junction Temperature (T ) ..................?40?C ? T ? +125?C SW J J Logic Input Voltage (V ) ..................................?0.3V to V Thermal Resistance EN IN ? Storage Temperature Range (T )..............?65?C to +150?C 3mm x 3mm MLF -12 ( ? )................................60?C/W s JA (3) ESD Rating ................................................. ESD Sensitive (4) Electrical Characteristics T = 25?C with V = V = 3.6V; C = 560pF; C = 4.7?F; I = 20mA unless otherwise specified. A IN EN FF OUT OUT Bold values indicate ?40?C< T < +125?C. J Parameter Condition Min. Typ. Max. Units Supply Voltage Range 2.7 5.5 V Undervoltage Lockout Threshold (turn-on) 2.45 2.55 2.65 V UVLO Hysteresis 100 mV Quiescent Current, Hyper LL mode I = 0mA ; V > 1.2*V nominal 20 32 ?A OUT SNS OUT Shutdown Current V = 5.5V; V = 0V 0.01 4 ?A IN EN Output Voltage Accuracy V = 3.0V; I = 20mA ?2.5 +2.5 % IN LOAD Current Limit in PWM Mode SNS = 0.9*V 0.65 1 1.7 A NOM Output Voltage Line Regulation V = 3.0V to 5.5V; I = 20mA 0.5 %/V IN LOAD Output Voltage Load Regulation 20mA < I < 500mA, 0.3 % LOAD Feedback Voltage V = 3.0V; I = 20mA 390 400 410 mV IN OUT Maximum Duty Cycle SNS ? V 80 89 % NOM I = 100mA PMOS SW 0.45 PWM Switch ON-Resistance ? 0.5 I = -100mA NMOS SW Frequency I = 120mA 4 MHz LOAD Soft-Start Time V = 90% 650 ?s OUT Enable Threshold (turn-on) 0.5 0.8 1.2 V Enable Hysteresis 35 mV Enable Input Current 0.1 2 ?A Over-temperature Shutdown 165 ?C Over-temperature Shutdown 20 ?C Hysteresis Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k ? in series with 100pF. 4. Specification for packaged product only. M9999-050312-C May 2012 3 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 Micrel, Inc. MIC33050 Ordering Information Part Number Voltage Temperature Range Package Lead Finish ? MIC33050-CYHL 1.0V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-4YHL 1.2V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-GYHL 1.8V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-SYHL 3.3V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-AYHL ADJ ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free Notes: 1. Other output voltage options available. Please contact Micrel for details. ? 2. MLF is a green RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration ? ? 12-Pin 3mm x 3mm MLF (HL) Fixed Output 12-Pin 3mm x 3mm MLF (HL) Adjustable Output Top View Top View Pin Description Pin Number Pin Number Pin Name Pin Function (Fixed) (Adj) 1 1 VIN Supply Voltage (Input): Requires bypass capacitor-to-GND. 2 2 PGND Power Ground. 3, 4, 5, 6 3, 4, 5, 6 SW Switch (Output): Internal power MOSFET output switches. 7, 8 7, 8 OUT Output after the internal inductor. 9 9 EN Enable (Input): Logic low will shut down the device, reducing the quiescent current to less than 4?A. Do not leave floating. 10 10 SNS Input to the error amplifier. Connect to the external resistor divider network to see the output voltage. For fixed output voltages connect V (internal resistor OUT network sets the output voltage). 11 ? CFF Feed forward capacitor connected to out sense pin. ? 11 FB Feedback voltage. Connect a resistor divider from output to ground to set the output voltage. 12 12 AGND Analog ground. EP EP ePad Exposed Heatsink Pad. Connect to power ground for best thermal performance. M9999-050312-C May 2012 2 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 MIC33050 4MHz Internal Inductor PWM Buck ? Regulator with HyperLight Load General Description Features The Micrel MIC33050 is a high-efficiency 600mA PWM ? Input voltage: 2.7V to 5.5V synchronous buck (step-down) regulator with internal ? 600mA output current inductor featuring HyperLight Load, a patent-pending ? Fixed and adjustable output voltage options switching scheme that offers best-in-class light load ? No external inductor required efficiency and transient performance while providing very ? Ultra-fast transient response small external components and low output ripple at all ? 20?A quiescent current loads. ? 4MHz switching in PWM mode The MIC33050 also has a very-low typical quiescent ? Low output voltage ripple current of 20?A and can achieve over 85% efficiency even at 1mA. ? >93% peak efficiency ? >85% efficiency at 1mA In contrast to traditional light load schemes, the HyperLight Load architecture does not trade off control speed to ? Micropower shutdown ? obtain low standby currents and in doing so, the device ? 12-pin 3mm x 3mm MLF only needs a small output capacitor to absorb the load ? ?40 ?C to +125 ?C junction temperature range transient as the powered device goes from light load to full load. Applications At higher loads, the MIC33050 provides a constant switching frequency of greater than 4MHz while providing ? Cellular phones peak efficiencies greater than 93%. ? Digital cameras The MIC33050 is available in fixed and adjustable output ? Portable media players ? voltages and comes in a 12-pin 3mm x 3mm MLF with a ? Wireless LAN cards junction operating range of ?40 ?C to +125 ?C. ? WiFi, WiMax, and WiBro modules Data sheets and support documentation can be found on ? USB-powered devices Micrel?s web site at: www.micrel.com. ____________________________________________________________________________________________________________ Typical Application HyperLight Load is a registered trademark of Micrel, Inc. MLF and MicroLeadFrame 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 M9999-050312-C May 2012 Micrel, Inc. MIC33050 Ordering Information Part Number Voltage Temperature Range Package Lead Finish ? MIC33050-CYHL 1.0V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-4YHL 1.2V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-GYHL 1.8V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-SYHL 3.3V ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free ? MIC33050-AYHL ADJ ?40? to +125?C 12-Pin 3mm x 3mm MLF Pb-Free Notes: 1. Other output voltage options available. Please contact Micrel for details. ? 2. MLF is a green RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free. Pin Configuration ? ? 12-Pin 3mm x 3mm MLF (HL) Fixed Output 12-Pin 3mm x 3mm MLF (HL) Adjustable Output Top View Top View Pin Description Pin Number Pin Number Pin Name Pin Function (Fixed) (Adj) 1 1 VIN Supply Voltage (Input): Requires bypass capacitor-to-GND. 2 2 PGND Power Ground. 3, 4, 5, 6 3, 4, 5, 6 SW Switch (Output): Internal power MOSFET output switches. 7, 8 7, 8 OUT Output after the internal inductor. 9 9 EN Enable (Input): Logic low will shut down the device, reducing the quiescent current to less than 4?A. Do not leave floating. 10 10 SNS Input to the error amplifier. Connect to the external resistor divider network to see the output voltage. For fixed output voltages connect V (internal resistor OUT network sets the output voltage). 11 ? CFF Feed forward capacitor connected to out sense pin. ? 11 FB Feedback voltage. Connect a resistor divider from output to ground to set the output voltage. 12 12 AGND Analog ground. EP EP ePad Exposed Heatsink Pad. Connect to power ground for best thermal performance. M9999-050312-C May 2012 2 Micrel, Inc. MIC33050 (1) (2) Absolute Maximum Ratings Operating Ratings Supply Voltage (V ).........................................................6V Supply Voltage (V )......................................... 2.7V to 5.5V IN IN Output Switch Voltage (V )............................................6V Logic Input Voltage (V )??????????-0.3V to V SW EN IN Output Switch Current (I )..............................................2A Junction Temperature (T ) ..................?40?C = T = +125?C SW J J Logic Input Voltage (V ) ..................................?0.3V to V Thermal Resistance EN IN ? Storage Temperature Range (T )..............?65?C to +150?C 3mm x 3mm MLF -12 ( ? )................................60?C/W s JA (3) ESD Rating ................................................. ESD Sensitive (4) Electrical Characteristics T = 25?C with V = V = 3.6V; C = 560pF; C = 4.7?F; I = 20mA unless otherwise specified. A IN EN FF OUT OUT Bold values indicate ?40?C< T < +125?C. J Parameter Condition Min. Typ. Max. Units Supply Voltage Range 2.7 5.5 V Undervoltage Lockout Threshold (turn-on) 2.45 2.55 2.65 V UVLO Hysteresis 100 mV Quiescent Current, Hyper LL mode I = 0mA ; V > 1.2*V nominal 20 32 ?A OUT SNS OUT Shutdown Current V = 5.5V; V = 0V 0.01 4 ?A IN EN Output Voltage Accuracy V = 3.0V; I = 20mA ?2.5 +2.5 % IN LOAD Current Limit in PWM Mode SNS = 0.9*V 0.65 1 1.7 A NOM Output Voltage Line Regulation V = 3.0V to 5.5V; I = 20mA 0.5 %/V IN LOAD Output Voltage Load Regulation 20mA < I < 500mA, 0.3 % LOAD Feedback Voltage V = 3.0V; I = 20mA 390 400 410 mV IN OUT Maximum Duty Cycle SNS ? V 80 89 % NOM I = 100mA PMOS SW 0.45 PWM Switch ON-Resistance ? 0.5 I = -100mA NMOS SW Frequency I = 120mA 4 MHz LOAD Soft-Start Time V = 90% 650 ?s OUT Enable Threshold (turn-on) 0.5 0.8 1.2 V Enable Hysteresis 35 mV Enable Input Current 0.1 2 ?A Over-temperature Shutdown 165 ?C Over-temperature Shutdown 20 ?C Hysteresis Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k ? in series with 100pF. 4. Specification for packaged product only. M9999-050312-C May 2012 3

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