Datasheet > ADP3050AR-3.3

ADP3050AR-3.3

更新时间： 2024-11-25 23:27:59

品牌	Logo	应用领域
其他 - ETC		模拟IC
页数	文件大小	规格书
16页	192K
描述
Analog IC

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数据手册

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ADP3050AR-3.3 数据手册

200 kHz, 1 A High-Voltage

Step-Down Switching Regulator

ADP3050

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Wide Input Voltage Range: 3.6 V to 30 V

Adjustable and Fixed (3.3 V, 5 V) Output Options

Integrated 1 A Power Switch

BIAS

Uses Small Surface-Mount Components

Cycle-By-Cycle Current Limiting

Peak Input Voltage (100 ms): 60 V

Thermally Enhanced 8-Lead SOIC Package

Configurable as a Buck, Buck-Boost and SEPIC

Regulator

CURRENT SENSE

AMPLIFIER

2.5V

REGULATOR

GND

FREQUENCY

AND CURRENT LIMIT

FOLDBACK

CURRENT

LIMIT

APPLICATIONS

Industrial Power Systems

PC Peripheral Power Systems

Preregulator for Linear Regulators

Distributed Power Systems

Automotive Systems

200kHz

OSCILLATOR

BOOST

CMP

Battery Chargers

DRIVER

SWITCH

ADP3050

1.2V

COMP

GENERAL DESCRIPTION

The ADP3050 includes a shutdown input that places the device

in a low-power mode, reducing the total supply current to under

20 µA. Internal protection features include thermal shutdown

circuitry and a cycle-by-cycle current-limit for the power switch

to provide complete device protection under fault conditions.

The ADP3050 is a current-mode monolithic buck (step-down)

PWM switching regulator that contains a high current 1 A power

switch and all control, logic, and protection functions. It uses a

unique compensation scheme that allows the use of any type of

output capacitor (tantalum, ceramic, electrolytic, OS-CON).

Unlike some buck regulators, the design is not restricted to using

a specific type of output capacitor or ESR value.

The ADP3050 provides excellent line and load regulation,

maintaining typically less than 3% output voltage accuracy

over temperature and under all input voltage and output cur-

rent conditions.

A special boosted drive stage is used to saturate the NPN power

switch, providing a system efficiency higher than conventional

bipolar buck switchers. Further efficiency improvements are

obtained by using the low voltage regulated output to provide

the device's internal operating current. A high switching frequency

allows the use of small external surface-mount components. A

wide variety of standard off-the-shelf devices can be used, pro-

viding a great deal of design flexibility. A complete regulator

design requires only a few external components.

The ADP3050 is specified over the industrial temperature range of

–40°C to +85°C and is available in a thermally enhanced 8-lead

SOIC package.

REV. A

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

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与ADP3050AR-3.3相关器件

型号	品牌	获取价格	描述	数据表
ADP3050AR-3.3-REEL	ADI	获取价格	IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050AR-33	ADI	获取价格	200 kHz, 1 A High-Voltage Step-Down Switching Regulator
ADP3050AR-5	ADI	获取价格	200 kHz, 1 A High-Voltage Step-Down Switching Regulator
ADP3050AR-5-REEL7	ADI	获取价格	IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050AR-REEL	ADI	获取价格	IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050AR-REEL7	ADI	获取价格	IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050ARZ	ADI	获取价格	200 kHz, 1 A High Voltage Step-Down Switching Regulator
ADP3050ARZ-3.3	ADI	获取价格	200 kHz, 1 A High Voltage Step-Down Switching Regulator
ADP3050ARZ-3.3-REEL	ADI	获取价格	IC 2.1 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8, MS-012AA, SOIC-8, Switchi
ADP3050ARZ-3.3-RL	ADI	获取价格	200 kHz, 1 A High Voltage Step-Down Switching Regulator

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