Datasheet > REG711-3

REG711-3

更新时间： 2024-11-22 02:58:47

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
13页	736K
描述
50mA SWITCHED-CAP DC/DC CONVERTER

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中文翻译

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数据手册

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REG711-3 数据手册

REG711

www.ti.com

50mA SWITCHED-CAP DC/DC CONVERTER

FEATURES

DESCRIPTION

The REG711 is a switched capacitor voltage con-

verter, which produces a regulated, low ripple output

voltage from an unregulated input voltage. A wide

input supply voltage of 1.8V to 5.5V makes the

REG711 ideal for a variety of battery sources, such as

single cell Li-Ion, or two and three cell Nickel or

Alkaline based chemistries.

ꢀ WIDE INPUT RANGE: 1.8V TO 5.5V

5V VERSION: 2.7V TO 5.5V

ꢀ AUTOMATIC STEP-UP/STEP-DOWN

OPERATION

ꢀ LOW INPUT CURRENT RIPPLE

ꢀ LOW OUTPUT VOLTAGE RIPPLE

The input voltage may vary above and below the

output voltage and the output will remain in regula-

tion. It works equally well for step up or down without

the need for an inductor, providing low EMI DC/DC

conversion. The high switching frequency allows the

use of small surface-mount capacitors, saving board

space and reducing cost. The REG711 is thermally

protected and current limited, protecting the load and

the regulator during fault conditions. Typical ground

pin current (quiescent current) is 1mA at full load,

60µA with no load, and less than 1µA in shutdown

mode. This regulator comes in a thin MSOP-8 pack-

age with a component height of less than 1.1mm.

ꢀ MINIMUM NUMBER OF EXTERNAL

COMPONENTS—NO INDUCTORS

ꢀ 1MHz INTERNAL OSCILLATOR ALLOWS

SMALL CAPACITORS

ꢀ “SHUTDOWN” MODE

ꢀꢀTHERMAL AND CURRENT LIMIT

PROTECTION

ꢀ FIVE OUTPUT VOLTAGES AVAILABLE:

5.0V, 3.3V, 3.0V, 2.7V, 2.5V

ꢀꢀTHIN, SMALL PACKAGE: MSOP-8

APPLICATIONS

ꢀꢀSMART CARD READERS

ꢀꢀCELLULAR PHONES

C_PUMP

ENABLE

ꢀꢀSIM CARD SUPPLIES

ꢀꢀPORTABLE COMMUNICATION DEVICES

ꢀꢀPERSONAL DIGITAL ASSISTANTS

ꢀꢀMODEMS

REG711

C_IN

PGND

C_OUT

LED

GND

ꢀꢀNOTEBOOK AND PALM-TOP COMPUTERS

ꢀꢀELECTRONIC GAMES

ꢀꢀHANDHELD METERS

ꢀꢀPCMCIA CARDS

ꢀꢀCARD BUSES

ꢀꢀLCD DISPLAYS

SBVS027A

Printed in U.S.A. February, 2001

12 3 4 5 6 7...13

中文翻译

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