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ADP1111AR

更新时间： 2024-02-26 05:25:09

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
16页	409K
描述
Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V

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ADP1111AR 数据手册

Micropower, Step-Up/Step-Down SW

a _{Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V}

ADP1111

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Operates from 2 V to 30 V Input Voltage Range

72 kHz Frequency Operation

SET

Utilizes Surface Mount Inductors

Very Few External Components Required

Operates in Step-Up/Step-Down or Inverting Mode

Low Battery Detector

User Adjustable Current Limit

Internal 1 A Power Switch

ADP1111

GAIN BLOCK/

ERROR AMP

LIM

SW1

1.25V

REFERENCE

Fixed or Adjustable Output Voltage

8-Pin DIP or SO-8 Package

OSCILLATOR

DRIVER

APPLICATIONS

COMPARATOR

3 V to 5 V, 5 V to 12 V Step-Up Converters

9 V to 5 V, 12 V to 5 V Step-Down Converters

Laptop and Palmtop Computers

Cellular Telephones

GND

SW2

SET

Flash Memory VPP Generators

Remote Controls

Peripherals and Add-On Cards

Battery Backup Supplies

ADP1111-5

ADP1111-12

GAIN BLOCK/

ERROR AMP

LIM

Uninterruptible Supplies

SW1

Portable Instruments

1.25V

REFERENCE

OSCILLATOR

DRIVER

COMPARATOR

R2 220k

SW2

GENERAL DESCRIPTION

GND

SENSE

The ADP1111 is part of a family of step-up/step-down switch-

ing regulators that operates from an input voltage supply of 2 V

to 12 V in step-up mode and up to 30 V in step-down mode.

The ADP1111 can be programmed to operate in step-up/step-

down or inverting applications with only 3 external components.

Maximum switch current can be programmed with a single

resistor, and an open collector gain block can be arranged in

multiple configuration for low battery detection, as a post linear

regulator, undervoltage lockout, or as an error amplifier.

The fixed outputs are 3.3 V, 5 V and 12 V; and an adjustable

version is also available. The ADP1111 can deliver 100 mA at

5 V from a 3 V input in step-up mode, or it can deliver 200 mA

at 5 V from a 12 V input in step-down mode.

If input voltages are lower than 2 V, see the ADP1110.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

World Wide Web Site: http://www.analog.com

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与ADP1111AR相关器件

型号	品牌	描述	获取价格	数据表
ADP1111AR-12	ADI	Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V	获取价格
ADP1111AR-3.3	ADI	Micropower Step-Up/Step-Down SW Regulator. Adjustable and Fixed 3.3 V 5 V 12 V(406.88 k)	获取价格
ADP1111AR-3.3	ROCHESTER	1.5 A SWITCHING REGULATOR, 88 kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8	获取价格
ADP1111AR-33	ADI	Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V	获取价格
ADP1111AR-5	ADI	Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V	获取价格
ADP1111AR-5	ROCHESTER	1.5 A SWITCHING REGULATOR, 88 kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8	获取价格