Datasheet > 电源电路 > 开关式稳压器或控制器> ADP3020ARU

ADP3020ARU

更新时间： 2024-11-22 22:39:03

品牌	Logo	应用领域
亚德诺 - ADI		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管电脑
页数	文件大小	规格书
22页	304K
描述
High-Efficiency Notebook Computer Power Supply Controller

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中文翻译

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数据手册

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ADP3020ARU 数据手册

High-Efﬁciency Notebook Computer

Power Supply Controller

ADP3020

GENERAL DESCRIPTION

FEATURES

The ADP3020 is a highly efﬁcient dual synchronous buck switch-

ing regulator controller optimized for converting the battery or

Wide Input Voltage Range: 4.5 V to 25 V

High Conversion Efﬁciency > 96%

adapter input into the system supply voltages required in note-

book computers. The ADP3020 uses a dual-mode PWM/Power

Saving Mode architecture to maintain efﬁciency over a wide

load range. The oscillator frequency can be programmed for

200 kHz, 300 kHz, or 400 kHz operation, or it can be synchro-

nized to an external clock signal of up to 600 kHz.

Integrated Current Sense—No External Resistor Required

Low Shutdown Current: 7 ␮A (Typical)

Dual Synchronous Buck Controllers with Selectable

PWM/Power-Saving Mode Operation

Built-In Gate Drive Boost Circuit for Driving External

N-Channel MOSFETs

Two Independently Programmable Output Voltages

Fixed 3.3 V or Adjustable (1.25 V to VIN–0.5 V)

Fixed 5 V or Adjustable (1.25 V to VIN–0.5 V)

Programmable PWM Frequency

Integrated Linear Regulator Controller

Extensive Circuit Protection Functions

38-Lead TSSOP Package

The ADP3020 provides accurate and reliable short circuit pro-

tection using an internal current sense circuit, which reduces

cost and increases overall efﬁciency. Other protection features

include programmable soft-start, UVLO, and integrated output

undervoltage/overvoltage protection. The ADP3020 contains a

linear regulator controller that is designed to drive an external

P-channel MOSFET or PNP transistor. The linear regulator

output is adjustable, and can be used to generate the auxiliary

voltages required in many laptop designs.

APPLICATIONS

Notebook Computers and PDAs

Portable Instruments

General Purpose DC-DC Converters

FUNCTIONAL BLOCK DIAGRAM

5.5V TO 25V

PFO

ADP3020

1.20V

5V LINEAR

REF

3.3V

SMPS

3.3V

SMPS

SS3

SS5

LINEAR

CONTROLLER

PWRGD

2.5V

POWER-ON

RESET

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: 781/329-4700

Fax: 781/326-8703

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

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与ADP3020ARU相关器件

型号	品牌	获取价格	描述	数据表
ADP3020ARU-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 448 kHz SWITCHING FREQ-MAX, PDSO38, TSSOP-38, Switching Regu
ADP3025	ADI	获取价格	High Efficiency Dual Output Power Supply Controller
ADP3025ARU	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 448 kHz SWITCHING FREQ-MAX, PDSO38, TSSOP-38, Switching Regu
ADP3025ARU-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 448 kHz SWITCHING FREQ-MAX, PDSO38, TSSOP-38, Switching Regu
ADP3025ARU-REEL7	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 448 kHz SWITCHING FREQ-MAX, PDSO38, TSSOP-38, Switching Regu
ADP3025JRU-REEL	ADI	获取价格	High Efficiency Dual Output Power Supply Controller
ADP3025JRUZ-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO38, MO-153BD-1, TSSOP-36, Sw
ADP3026	ADI	获取价格	High-Efficiency Notebook Computer Power Supply Controller
ADP3026ARU	ADI	获取价格	High-Efficiency Notebook Computer Power Supply Controller
ADP3026ARU-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 336 kHz SWITCHING FREQ-MAX, PDSO28, TSSOP-28, Switching Regu

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