max5008cubt Maxim Integrated Products, Inc., max5008cubt Datasheet

max5008cubt

Manufacturer Part Number

max5008cubt

Description

Max5008 Regulated 5v Usb Charge Pump With Programmable Current Limit

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5008CUBT.pdf (7 pages)

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The MAX5008 charge-pump regulator generates a reg-

ulated 5V output up to 125mA with a 2.95V to 5.5V input

voltage range. The device includes resistor-program-

mable overcurrent limit. The MAX5008 requires a mini-

mum number of external components for normal

operation. The high 1MHz switching frequency allows

the use of small surface-mount ceramic capacitors.

The fault-protection circuitry limits the output current

when it exceeds the limit set by an external resistor.

The output current can range from 1mA to 150mA to

accommodate circuit requirements. A FAULT output

indicates when the device is in current limit or the out-

put is out of regulation.

A low-power shutdown mode reduces supply current to

less than 1µA and places the output in a high-imped-

ance state. The MAX5008 is offered in a space-saving

10-pin µMAX

19-2426; Rev 1; 7/06

µMAX is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Flash Memory Supplies

USB Host Devices

Battery-Powered Systems

3.3V to 5V Local Conversion

package that is only 1.1mm high.

________________________________________________________________ Maxim Integrated Products

General Description

Regulated 5V USB Charge Pump with

2.95V TO 5.5V

Applications

4.7 F

*USE IF PRECISION CURRENT LIMIT IS REQUIRED.

100k

Programmable Current Limit

SHDN

FAULT

CXN

GND

MAX5008

0.68 F

PGND

CXP

CEXT

OUT

RCS

♦ Regulated 5V Output Up to 125mA

♦ Indefinite Short-Circuit Protection

♦ Adjustable Output Current Limit

♦ No Inductors Required

♦ 0.1µA Shutdown Current

♦ Thermal Shutdown

♦ Fault Output Indicates Overcurrent or Output

♦ 2.95V to 5.5V Input Voltage Range

♦ 10-Pin µMAX Package

Pin Configuration appears at end of data sheet.

MAX5008CUB

Voltage Out of Regulation

OUT

PART

47nF*

200 *

Typical Operating Circuit

0.4

6.8 F

EXT

TEMP RANGE

Ordering Information

0°C to +70°C

4.7 F

OUT

10 µMAX

PIN-PACKAGE

Features

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