MAX1676EVKIT Maxim Integrated, MAX1676EVKIT Datasheet

MAX1676EVKIT

Manufacturer Part Number

MAX1676EVKIT

Description

Power Management IC Development Tools Evaluation Kit for the MAX1676

Manufacturer

Maxim Integrated

Series

MAX1674, MAX1675, MAX1676r

Datasheet

1.MAX1676EVKIT.pdf (4 pages)

Specifications of MAX1676EVKIT

Output Voltage

3.3 V, 5 V

Output Current

420 mA, 285 mA

Current page: 1 of 4
Download datasheet (62Kb)

The MAX1676 is a high-efficiency, step-up DC-DC

converter for portable hand-held devices. It accepts a

positive input voltage between 0.7V to 5.5V and con-

verts it to a higher output voltage. The MAX1676

includes a damping circuit (at BATT) that suppresses

inductor ringing to reduce electromagnetic interfer-

ence (EMI).

The MAX1676 evaluation kit (EV kit) is a fully assembled

and tested surface-mount printed circuit board. Three

jumpers on the EV kit allow for easy access to the out-

put voltage select, current limit, and shutdown features.

The output voltage is both adjustable and pin-selec-

table. A movable jumper selects either a 3.3V or 5.0V

output, or it can be left open and a resistor network can

be used to obtain a voltage in the 2V to 5.5V range. The

inductor current limit is selectable for either 0.5A or

1.0A. In shutdown mode, the MAX1676 typically draws

only 0.1µA.

19-1360; Rev 0; 7/98

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

DESIGNATION

JU1, JU2, JU3

MAX1676EVKIT

R2–R6

PART

QTY

________________________________________________________________ Maxim Integrated Products

47µF, 16V tantalum capacitor

AVX TPSC476M016R0350

100µF, 10V tantalum capacitor

AVX TPSD107M010R0100

1µF, Y5V ceramic capacitor

Taiyo Yuden UMK212F105ZG

0.1µF, X7R ceramic capacitor

Taiyo Yuden UMK212BJ104KG or

Murata GRM40X7R104K025AL

Diode (not included; needed for 1-cell

inputs)

Motorola MBR0520

3-pin jumpers

22µH power inductor (1.1A)

Sumida CD54-220

200Ω, 5% resistor

Open

MAX1676EUB

TEMP. RANGE

Ordering Information

0°C to +70°C

General Description

Component List

DESCRIPTION

10 µMAX

IC PACKAGE

MAX1676 Evaluation Kit

The MAX1676 EV kit is a fully assembled and tested

surface-mount board. Follow the steps below to verify

board operation. Do not turn on the power supply

until all connections are completed.

1) Connect a 1.1V to 3V supply to the pads marked

2) Connect a voltmeter and load (if any) to the

3) Place the shunt on JU3 across pins 1 and 2.

4) Place the shunt on JU1 across pins 1 and 2 for a

5) Place the shunt on JU2 across pins 1 and 2 for a

6) Turn on the power and verify that the output

7) Refer to the Output Voltage Selection section to

AVX

Motorola

Murata

Sumida

Taiyo Yuden

Synchronous Rectification for Improved

Efficiency

Operates Down to 0.7V Input Supply Voltage

No External Schottky Diode Required

(for multicell applications)

Selectable Current Limit (0.5A or 1.0A)

Damping Circuit Reduces EMI

16µA Quiescent Current

0.1µA Typical Shutdown Current

Low-Battery Detector (LBI/LBO)

10-Pin µMAX Package

Surface-Mount Construction

Fully Assembled and Tested

+VBATT and GND.

VOUT pad.

3.3V output voltage.

1A current limit.

voltage is 3.3V.

modify the board for a different output voltage.

SUPPLIER

803-946-0690

303-675-2140

814-237-1431

847-956-0666

408-573-4150

Component Suppliers

PHONE

Quick Start

803-626-3123

303-675-2150

814-238-0490

847-956-0702

408-573-4159

Features

FAX

Related parts for MAX1676EVKIT

MAX1676EVKIT Summary of contents

Page 1

... U1 1 MAX1676EUB Ordering Information PART TEMP. RANGE MAX1676EVKIT 0°C to +70°C ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. MAX1676 Evaluation Kit Synchronous Rectification for Improved Efficiency Operates Down to 0 ...

Page 2

MAX1676 Evaluation Kit Detailed Description The input source for the MAX1676 EV kit must be greater than 1.1V for guaranteed start-up (0.7V for operation once started), and less than the output volt- age. A typical input voltage range would be ...

Page 3

Using the Low-Battery Detector The MAX1676 has an additional comparator useful for monitoring the input source’s voltage level. Resistors R3 and R4 are connected as a voltage-divider between the +VBATT pad and the MAX1676 LBI pin. Note that a printed ...

Page 4

... 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. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products ...

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