MAX1685EVKIT Maxim Integrated, MAX1685EVKIT Datasheet

MAX1685EVKIT

Manufacturer Part Number

MAX1685EVKIT

Description

Power Management IC Development Tools Evaluation Kit for the MAX1684 MAX1685

Manufacturer

Maxim Integrated

Series

MAX1684, MAX1685r

Datasheet

1.MAX1685EVKIT.pdf (4 pages)

Specifications of MAX1685EVKIT

Output Voltage

3.3 V

Output Current

1 A

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The MAX1685 evaluation kit (EV kit) is a fully assembled

and tested surface-mount circuit board that contains a

pulse-width-modulated (PWM), step-down DC-DC con-

verter. The EV kit provides a +3.33V output voltage

from a +3.5V to +14V input source. It delivers up to 1A

output current. The MAX1685 features internal MOSFET

switches, low dropout voltage (100% duty-cycle opera-

tion), and an accurate +1.25V reference.

The MAX1685 EV kit provides low quiescent current,

synchronous rectification, and high efficiency (up to

95%) for maximum battery life. Operation at 600kHz

allows the use of a tiny surface-mount inductor.

The MAX1685 EV kit can also be used to evaluate the

MAX1684, which operates at 300kHz and has slightly

higher efficiency than the MAX1685.

19-1454; Rev 0; 4/99

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

For small orders, phone 1-800-835-8769.

DESIGNATION

C3, C4, C5, C9

JU2, JU3

R1, R2

R3, R4

None

JU1

QTY

________________________________________________________________ Maxim Integrated Products

22µF, 35V tantalum capacitor

AVX TPSE226M035R0300 or

Sprague 593D226X0035E2T

100µF, 10V, low-ESR tantalum capacitor

AVX TPSD107M010R0080,

Sprague 594D107X0010C2T, or

Sanyo 10TPB100M

0.1µF ceramic capacitors

0.01µF ceramic capacitor

1µF, 16V X7R ceramic capacitor

Taiyo Yuden EMK316BJ105KL or

TDK C3216X7R1C105M

Not installed

1A Schottky diode

Motorola MBRS130LT3,

International Rectifier 10BQ040,

Nihon EC10QS03, or Nihon EP10QY03

10µH inductor

Sumida CDRH6D28-100NC or

Sumida CDRH73-100

Not installed

100k 5% resistors

MAX1685EEE

3-pin header

2-pin headers

Shunt (JU1)

MAX1684/MAX1685 PC board

MAX1684/MAX1685 data sheet

General Description

Component List

DESCRIPTION

MAX1685 Evaluation Kit

Note: To evaluate the MAX1684, request a MAX1684EEE free

sample with the MAX1685 EV kit.

Note: Please indicate that you are using the MAX1685 when

contacting these component suppliers.

MAX1685EVKIT

AVX

Dale-Vishay

International

Rectifier

Motorola

Nihon

Sanyo

Sprague

Sumida

TDK

Taiyo Yuden

+3.5V to +14V Input Voltage Range

Fixed or Adjustable Output Voltage

Guaranteed 1A Output Current

100% Duty Cycle in Dropout

600kHz Fixed-Frequency PWM Operation

Internal MOSFET Switch and Synchronous

Rectifier

2µA IC Shutdown Current

Surface-Mount Components

Fully Assembled and Tested

SUPPLIER

+3.33V (Fixed)

+1.25V to V

PART

(Adjustable)

Component Suppliers

TEMP. RANGE

803-946-0690

402-564-3131

310-322-3331

602-303-5454

661-843-7500

619-661-6835

603-224-1961

708-956-0666

847-390-4373

408-573-4150

Ordering Information

0°C to +70°C

PHONE

16-QSOP

IC PACKAGE

803-626-3123

402-563-6418

310-322-3332

602-994-6430

661-843-2798

619-661-1055

603-224-1430

708-956-0702

847-390-4428

408-573-4159

Features

FAX

Related parts for MAX1685EVKIT

MAX1685EVKIT Summary of contents

Page 1

... Internal MOSFET Switch and Synchronous Rectifier 2µA IC Shutdown Current Surface-Mount Components Fully Assembled and Tested Ordering Information PART TEMP. RANGE MAX1685EVKIT 0°C to +70°C Note: To evaluate the MAX1684, request a MAX1684EEE free sample with the MAX1685 EV kit. Component Suppliers SUPPLIER PHONE AVX ...

Page 2

MAX1685 Evaluation Kit The MAX1685 EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. 1) Connect a +3.5V to +14V supply to the ...

Page 3

The EV kit operates at 600kHz switching frequency and allows the use of a tiny inductor. The switching frequen- cy can also be synchronized to an external clock rang- ing from 360kHz to 700kHz. The 2-pin headers JU2 and JU3 ...

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 © 1999 Maxim Integrated Products MAX1685 Evaluation Kit 1.0" ...

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