# MAX845 Evaluation Kit

## General Description
The MAX845 evaluation kit (EV kit) is an assembled and tested isolated 5V power supply designed for PCMCIA height requirements. It includes two demonstration circuits:

️· 100mA Circuit: Uses a 78L05 regulator.
️· 40mA Circuit: Uses a zener shunt regulator.

Both circuits consist of a MAX845 IC, low-profile transformer, half-wave rectified voltage doubler, and regulator.

## Features
️· Isolated Power Supply
️· Low Profile (for PCMCIA cards)

## Component List

DESIGNATION	QTY	DESCRIPTION
C11-C14, C21-C24	8	0.1µF ceramic 1206 capacitors
D11, D12	2	Motorola MBR0520L Schottky diodes
D21	1	Central Semiconductor CMPSH-3S dual Schottky diodes
R22	1	51Ω 1206 resistor
U11, U21	2	Maxim MAX845EUA
U12	1	78L05 in surface-mount 8-pin SOIC
T11, T21	2	Halo TGM-010P3 low-profile transformers
Z21	1	Central Semiconductor CMPZ5231B 5.1V, 5% zener in SOT-23

## Ordering Information

PART	TEMP. RANGE	BOARD TYPE
MAX845EVKIT-MM	0°C to +70°C	Surface Mount

## Quick Start

1. Connect a 4.5V to 5.5V supply to the +5V IN pad; connect ground to the GND pad.
2. Connect a voltmeter and load to the +5OUT pad; connect load ground to the ISO GND pad.
3. Turn on power; verify output is 5V ±5%.
4. To evaluate shutdown, cut the trace between SD and GND, and connect SD to VCC.

## Component Suppliers

SUPPLIER	PHONE	FAX
Central Semiconductor	(516) 435-1110	(516) 435-1824
Halo Electronics	(415) 969-7313	(415) 367-7158
Motorola	(602) 244-5303	(602) 244-4015