Datasheet > ADP3089ACP-REEL7

ADP3089ACP-REEL7

更新时间： 2024-11-26 19:52:27

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
4页	109K
描述
IC 2 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, DSO8, 3 X 3 MM, LEAD FRAME, CSP-8, Switching Regulator or Controller

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ADP3089ACP-REEL7 数据手册

PRELIMINARY TECHNICAL DATA

1 MHz, 1 A Buck Regulator

Preliminary Technical Data

ADP3089

FUNCTIONAL BLOCK DIAGRAM

FEATURES

1 MHz PWM Frequency

Ultrasmall 8-lead 3×3 Sq. mm Chip Scale Package

Automatic PWM to Power Saving Mode at Light Load

Fully Integrated 1.5 A Power Switch

3% Output Regulation Accuracy over Temperature,

Line, and Load

CURRENT

SENSE

AMP

DRV

PWM

COMPARATOR

1MHz

100% Duty Cycle Operation

SimpleCompensation

Output Voltage: 1.25 V to 10 V

Small Inductor and MLC Capacitors

Low Quiescent Current while Pulse Skipping

ThermalShutdown

Fully Integrated Soft Start

Cycle-by-cycle Current Limit

PROTECTION

LOGIC

(ILIM, OT)

RUN/STOP

COMPARATORS

ERROR

AMP

COMP

GND

SOFT-START

TIMER

REF

1.245V

GND

APPLICATONS

PDAs and Palmtop Computers

Notebook Computers

PCMCIA Cards

Bus Products

Portable Instruments

Industrial Systems

10µH

ADP3089

OUT

1.8V@1A

20BQ030

10µF

0.1µF

DRV

GND

GENERAL DESCRIPTION

18.2kΩ

GND

COMP

The ADP3089 is a high frequency, non-synchronous PWM

step-down DC-DC regulator with an integrated 1.5 A

power switch in a space-saving chip scale package. It pro-

vides high efficiency, excellent dynamic response, and is

very simple to use.

22µF

41.2kΩ

47pF

470pF

10.7kΩ

The ADP3089’s 1 MHz switching frequency allows for

small, inexpensive external components, and the current

mode control loop is simple to compensate and eases noise

filtering. It operates in PWM current mode under heavy

loads and saves energy at lighter loads by switching auto-

matically into Power Saving mode. Soft start is integrated

completely on chip, as is the cycle-by-cycle current limit.

Figure 1. Typical Application

Capable of operating from 2.5 V to 11 V input with a

typical output current of 1 A, it is ideal for portable, bat-

tery powered, industrial, PC and instrumentation applica-

tions. Supporting output voltages down to 1.25 V, the

ADP3089 is ideal to generate low voltage rails, providing

the optimal solution in its class for delivering power effi-

ciently, responsively, and simply with minimal printed

circuit board area.

The device is specified over the industrial temperature

range of -40°C to +85°C, and is offered in an ultrasmall 8-

lead 3×3 square mm chip scale package.

REV. PrE

8/26/02

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: 781/329-4700

Fax: 781/326-8703

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

Analog Devices, Inc., 2002

12 3 4

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与ADP3089ACP-REEL7相关器件

型号	品牌	获取价格	描述	数据表
ADP3110	ADI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110	ONSEMI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110A	ONSEMI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110A	ADI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110AJCPZ-RL	ADI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110AKCPZ-RL	ROCHESTER	获取价格	HALF BRDG BASED MOSFET DRIVER, PDSO8, 3 X 3 MM, 0.50 PITCH, LEAD FREE, DFN-8
ADP3110AKCPZ-RL	ONSEMI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110AKCPZ-RL	ADI	获取价格	IC HALF BRDG BASED MOSFET DRIVER, QCC8, 3 X 3 MM, ROHS COMPLIANT, LFCSP-8, MOSFET Driver
ADP3110AKRZ	ADI	获取价格	Dual Bootstrapped, 12 V MOSFET Driver with Output Disable
ADP3110AKRZ	ROCHESTER	获取价格	HALF BRDG BASED MOSFET DRIVER, PDSO8, LEAD FREE, SOIC-8

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