MAX1702BEGX 데이터 시트보기 (PDF) - Maxim Integrated

부품명

상세내역

제조사

MAX1702BEGX

Triple Output Power Management IC for Microprocessor-Based Systems

Maxim Integrated 

MAX1702B

Triple Output Power Management IC for

Microprocessor-Based Systems

General Description

The MAX1702B power-management IC supports ARM

Powered® devices such as the Intel® PXA210 and

PXA250 microprocessors based on the Intel XScale™

micro-architecture. These devices include PDAs, third-

generation smart cellular phones, internet appliances,

automotive in-dash Telematics systems, and other appli-

cations requiring substantial computing and multimedia

capability at low power.

The MAX1702B integrates three ultra-high-performance

power supplies with associated supervisory and manage-

ment functions. Included is a step-down DC-DC converter

to supply 3.3V I/O and peripherals, a step-down DC-DC

converter to supply 0.7V to VIN for the microprocessor

core, and a step-down DC-DC converter to supply either

1.8V, 2.5V, or 3.3V to power the memory.

Management functions include automatic power-up

sequencing, power-on-reset and manual reset with timer,

and two levels of low-battery detection.

The DC-DC converters use fast 1MHz PWM switching,

allowing the use of small external components. They

automatically switch from PWM mode under heavy loads

to skip mode under light loads to reduce quiescent cur-

rent and maximize battery life. The input voltage range is

from 2.6V to 5.5V, allowing the use of three NiMH cells,

a single Li+ cell, or a regulated 5V input. The MAX1702B

is available in a tiny 6mm x 6mm, 36-pin QFN package

and operates over the -40°C to +85°C temperature range.

Applications

●● PDA, Palmtop, and Wireless Handhelds

●● Third Generation Smart Cell Phones

●● Internet Appliances and Web Books

Typical Operating Circuit appears at end of data sheet.

Intel is a registered trademark of Intel Corporation.

XScale is a trademark of Intel Corporation.

ARM and ARM Powered are registered trademarks of ARM

Limited.

Features

●● Three Regulators in One Package

• Peripherals and I/O Supply: 3.3V at 900mA

• μP Core Supply: 0.7V to VIN at 400 mA

• Memory Supply: 1.8/2.5/3.3V at 800 mA

●● Supports Intel® PXA210 and PXA250

Microprocessors

●● Power-On Reset with Manual Reset Input

●● Auto Power-Up Sequencing

●● 1MHz PWM Switching Allows Small External

Components

●● Low 5μA Shutdown Current

●● Tiny 6mm x 6mm, 36-pin QFN Package

Ordering Information

PART

TEMP RANGE

MAX1702BEGX -40°C to +85°C

PIN-PACKAGE

36 QFN

(6mm x 6mm)

Pin Configuration

TOP VIEW

36 35 34 33 32 31 30 29 28

N.C. 1

LBI 2

DBI 3

ON2 4

PGM3 5

GND 6

MAX1702B

27 N.C.

26 N.C.

25 INP2

24 LX2

23 PG2

22 OUTOK

REF 7

GND 8

N.C. 9

21 COMP2

20 OUT1

19 N.C.

10 11 12 13 14 15 16 17 18

6mm x 6mm QFN

19-2448; Rev 1; 4/15

Share Link: