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| Evaluation Kit Information MAX619 EV Kit _______________General Description The MAX619 evaluation kit (EV kit) is a 3V to 5V chargepump DC-DC converter capable of driving loads up to 50mA. The circuit consists of the SOIC and four surfacemount capacitors on a single-layer printed circuit board. ____________________________Features o 2.0V to 3.6V Input Range o Up to 50mA Output Current o 1A Shutdown Current _________________________Quick Start The MAX619 EV Kit is fully assembled and tested. Follow the steps below to verify board operation. Do not turn on the power supply until all connections are completed. 1. Connect a 2V to 3.6V supply to the pad marked VIN. The ground connects to the GND pad. 2. Connect a voltmeter and load (if any) to the VOUT pad. 3. Place the shunt on JU1 across the ON side. This grounds the SHDN pin to enable the device. Moving the shunt to the OFF side connects SHDN to VIN to disable the device. Remove the shunt if an external signal is connected to the SHDN pad. 4. Turn on the power and verify that the output is 5V 4%. ______________Ordering Information PART MAX619EVKIT-SO TEMP. RANGE 0C to +70C BOARD TYPE Surface Mount C1 0.22F Figure 2. Component Placement Guide--Component Side 1 2.0V to 3.6V VIN C3 10F 2 VIN SHDN ON 8 OFF JU1 SHDN C1+ C1- MAX619 VOUT 5V C4 10F 3 VOUT GND 4 C2+ C2- 5 C2 0.22F Figure 1. MAX619 EV Kit Schematic Figure 3. PC Board Layout--Component Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. |
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