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MAX1720

Switched Capacitor Voltage Inverter with Shutdown

ON Semiconductor 

MAX1720

Switched Capacitor Voltage

Inverter with Shutdown

The MAX1720 is a CMOS charge pump voltage inverter that is

designed for operation over an input voltage range of 1.15 V to 5.5 V

with an output current capability in excess of 50 mA. The operating

current consumption is only 67 mA, and a power saving shutdown

input is provided to further reduce the current to a mere 0.4 mA. The

device contains a 12 kHz oscillator that drives four low resistance

MOSFET switches, yielding a low output resistance of 26 W and a

voltage conversion efficiency of 99%. This device requires only two

external 10 mF capacitors for a complete inverter making it an ideal

solution for numerous battery powered and board level applications.

The MAX1720 is available in the space saving TSOP−6 package.

Features

• Operating Voltage Range of 1.15 V to 5.5 V

• Output Current Capability in Excess of 50 mA

• Low Current Consumption of 67 mA

• Power Saving Shutdown Input for a Reduced Current of 0.4 mA

• Operation at 12 kHz

• Low Output Resistance of 26 W

• Space Saving TSOP−6 Package

• Pb−Free Package is Available

Typical Applications

• LCD Panel Bias

• Cellular Telephones

• Pagers

• Personal Digital Assistants

• Electronic Games

• Digital Cameras

• Camcorders

• Hand Held Instruments

−Vout

1

6

Vin

2

5

3

4

This device contains 77 active transistors.

Figure 1. Typical Application

© Semiconductor Components Industries, LLC, 2005

1

December, 2005 − Rev. 3

http://onsemi.com

6

1

TSOP−6

SN SUFFIX

CASE 318G

MARKING DIAGRAM

EACAYW G

G

1

EAC = Device Code

A = Assembly Location

Y = Year

W = Work Week

G = Pb−Free Package

(Note: Microdot may be in either location)

PIN CONNECTIONS

Vout 1

6 C+

Vin 2

5 SHDN

C− 3

4 GND

(Top View)

ORDERING INFORMATION

Device

Package

Shipping†

MAX1720EUT TSOP−6 3000 Tape & Reel

MAX1720EUTG TSOP−6 3000 Tape & Reel

(Pb−Free)

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Publication Order Number:

MAX1720/D

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