ADP3088

更新时间： 2024-11-04 22:39:03

品牌	Logo	应用领域
亚德诺 - ADI		稳压器
页数	文件大小	规格书
11页	611K
描述
1 MHz, 750 mA Buck Regulator

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中文翻译

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ADP3088 数据手册

PRELIMINARY TECHNICAL DATA

1MHz,750mABuckRegulator

Preliminary Technical Data

ADP3088

FUNCTIONAL BLOCK DIAGRAM

FEATURES

1 MHz PWM Frequency

Automatic PWM to Power Saving Mode at Light Load

Fully Integrated 1 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 10.5 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

APPLICATONS

GND

PDAs and Palmtop Computers

Notebook Computers

PCMCIA Cards

Bus Products

Portable Instruments

ADP3088

3.3µH

GENERAL DESCRIPTION

VIN

VOUT

1.8V

3.3V

The ADP3088 is a high frequency, non-synchronous PWM

step-down DC-DC regulator with an integrated 1A power

switch in a space-saving MSOP8 package. It provides high

efficiency, excellent dynamic response, and is very simple

to use.

0.1µF

4.7pF

10µF

DRV

10.0kΩ

1N5817

GND

COMP

10µF

22.4kΩ

220pF

The ADP3088’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.

20kΩ

Figure 1. Typical Application

Capable of operating from 2.5 V to 11 V input, it is ideal for

many applications, including portable, battery power appli-

cations, where local point-of-use power regulation is re-

quired. Supporting output voltages down to 1.25 V, the

ADP3088 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 cir-

cuit board area.

The device is specified over the industrial temperature

range of -40 °C to +85°C.

REV. PrK

3/28/02

Information furnished byAnalog Devices is believed to be accurate and reli-

able. However, no responsibility is assumed byAnalog 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 ofAnalog 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 5 6 7...11

中文翻译

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与ADP3088相关器件

型号	品牌	获取价格	描述	数据表
ADP3088ARM	ADI	获取价格	1 MHz, 750 mA Buck Regulator
ADP3088ARM-REEL	ADI	获取价格	1 MHz, 750 mA Buck Regulator
ADP3088ARM-REEL7	ADI	获取价格	1 MHz, 750 mA Buck Regulator
ADP3088ARMZ	ADI	获取价格	IC 1.4 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, PDSO8, MSOP-8, Switching Regula
ADP3089	ADI	获取价格	1 MHz, 1 A Buck Regulator
ADP3089ACP	ADI	获取价格	1 MHz, 1 A Buck Regulator
ADP3089ACP-REEL	ADI	获取价格	IC 2 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, DSO8, 3 X 3 MM, LEAD FRAME, CSP-8
ADP3089ACP-REEL7	ADI	获取价格	IC 2 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, DSO8, 3 X 3 MM, LEAD FRAME, CSP-8
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

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