Product Information

EVB-EN5337QI

EVB-EN5337QI electronic component of Enpirion

Datasheet
Enpirion Power Management IC Development Tools Eval Board EN5337QI 3A Sync. Buck Convtr

Manufacturer: Enpirion
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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Obsolete
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0 - Global Stock

MOQ : 1
Multiples : 1

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EVB-EN5337QI
Enpirion

1 : USD 80.8143
N/A

Obsolete
     
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Product Category
RoHS - XON
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Type
Tool Is For Evaluation Of
Input Voltage
Output Voltage
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Description/Function
Output Current
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Minimum Operating Temperature
Cnhts
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Mxhts
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Taric
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EN5337QI Evaluation Board Application Note August 2008 V1.0 Enpirion EN5337QI 3A DCDC Converter w/Integrated Inductor Evaluation Board Introduction Thank you for choosing Enpirion, the source for Ultra small foot print power converter products The EN5337QI features integrated inductor, power MOSFETS, Controller, a bulk of the compensation Network, and protection circuitry against system faults. This level of integration delivers a substantial reduction in footprint and part count over competing solutions. However, the evaluation board is not optimized for minimum footprint rather for engineering ease of evaluation through programming options, clip leads, test points etc. The EN5337QI features a customer programmable output voltage by means of a resistor divider. The resistor divider allows the user to set the output voltage to any value within the range 0.75V to (V -V ). The IN DROPOUT evaluation board, as shipped is populated with a 4 resistor divider option. The upper resistor is fixed (150k) and has a phase lead capacitor (27pF) in parallel. One of 4 lower resistors is selected with the jumper option for output voltages of 1.0V, 1.2V, 1.55V and 2.5V. We recommend the user to retain the upper resistor and capacitor values and change only the lower resistor to program the output to the desired voltage. This device has no over-voltage protection feature. We strongly recommend the customer to ensure the feedback loop is truly closed before powering up the device especially if the load can not withstand the input voltage. The input capacitor is a 10V rated 2X10uF X5R MLCC. The output filter section is populated with 1 x 10uF and 1 x 47uF, 6.3V rated X5R MLC capacitors to achieve the required ~50uF of output capacitance. This combination of output caps yields very low ESR and hence low output ripple. A single 47uF capacitor may be substituted if minimizing footprint is important. The Soft-start capacitor is a small 10V rated 15nF X5R MLCC. Pads are available to add an additional input capacitor and there are a total of 5 pads to accommodate the output capacitor(s). This allows for evaluation of performance over a wide range of input/output capacitor combinations. Page 1 of 9 EN5337QI Evaluation Board Application Note August 2008 V1.0 Clip on terminals are provided for ENA, SS, POK, VIN and VOUT. Other test points are also made available. A jumper is provided for controlling the Enable signal. Enable may also be controlled using an external switching source by removing the jumper and applying the enable signal to the middle pin and ground. A jumper is also provided to connect a resistor load to POK pin. This jumper is especially useful to measure the disable current and eliminates having to subtract the current drawn by this load. Foot print is also provided for a SMA connector to SYNC input. The SYNC input allows the device switching to be phase locked to an external clock signal. This external clock synchronization allows for moving any offending beat frequency to be moved out-of-band. A swept frequency applied to this pin results in spread spectrum operation and reduces the peaks in the noise spectrum of emitted EMI. Numerous test points are provided as well as banana plugs for input and output connections. Input / Output ripple are best measured at test points J12 / J11. The switching waveform may be viewed between test points labeled SW and GND. The board comes with input decoupling and reverse polarity protection to guard the device against common setup mishaps. Page 2 of 9

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free

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