MAX17574 datasheet(1/10 Pages) MAXIM

Part #	MAX17574

Description	3.3V Output-Voltage Application

PDF	10 Pages

Scroll/Zoom	100%

Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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Evaluates: MAX17574

3.3V Output-Voltage Application

MAX17574 3.3V Output

Evaluation Kit

General Description

The MAX17574 3.3V output evaluation kit (EV kit) provides

a proven design to evaluate the MAX17574 high-voltage,

high-efficiency, synchronous step-down DC-DC converter.

The EV kit is preset for 3.3V output at load currents up

to 3A and features a 500kHz switching frequency for

optimum efficiency and component size. The EV kit

features adjustable input undervoltage lockout, adjustable

soft-start, open-drain RESET signal, and external

frequency synchronization.

Features

● Operates from a 5V to 60V Input Supply

● 3.3V Output Voltage

● Up to 3A Output Current

● 500kHz Switching Frequency

● Enable/UVLO Input, Resistor-Programmable UVLO

Threshold

● Adjustable Soft-Start Time

● MODE/SYNC Pin to Select Among PWM, PFM, or

DCM Modes

● Open-Drain RESET Output

● External Frequency Synchronization

● Overcurrent and Overtemperature Protection

● Proven PCB Layout

● Fully Assembled and Tested

19-8701; Rev 2; 5/18

Ordering Information appears at end of data sheet.

Quick Start

Recommended Equipment

● MAX17574 3.3V output EV kit

● 5V to 60V, 5A DC input power supply

● Load capable of sinking 3A

● Digital voltmeter (DVM)

Procedure

The EV kit is fully assembled and tested. Follow the steps

below to verify the board operation.

Caution: Do not turn

on power supply until all connections are completed.

1) Set the power supply at a voltage between 5V and

60V. Disable the power supply.

2) Connect the positive terminal of the power supply to

the VIN PCB pad and the negative terminal to the

nearest PGND PCB pad. Connect the positive

terminal of the 3A load to the VOUT PCB pad and the

negative terminal to the nearest PGND PCB pad.

3) Connect the DVM across the VOUT PCB pad and the

nearest PGND PCB pad.

4) Verify that shunts are installed across pins 1-2 on

jumper JU1 (see Table 1 for details).

5) Select the shunt position on jumper JU2 according to

the intended MODE/SYNC of operation (see Table 2

for details).

6) Turn on the DC power supply.

7) Enable the load.

8) Verify that the DVM displays 3.3V.

Click

here for production status of specific part numbers.

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