Datasheet > 电源电路 > 开关式稳压器或控制器> ADP3161JR

ADP3161JR

更新时间： 2024-11-29 08:19:35

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
页数	文件大小	规格书
12页	162K
描述
4-Bit Programmable 2-Phase Synchronous Buck Controller

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中文翻译

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ADP3161JR 数据手册

4-Bit Programmable 2-Phase

Synchronous Buck Controller

ADP3161

FEATURES

FUNCTIONAL BLOCK DIAGRAM

ADOPT™ Optimal Positioning Technology for Superior

Load Transient Response and Fewest Output

Capacitors

Active Current Balancing Between Both Output Phases

VRM 8.4-Compatible Digitally Programmable 1.3 V to

2.05 V Output

VCC

SET

UVLO

& BIAS

PWM1

PWM2

2-PHASE

DRIVER

LOGIC

RESET

CROWBAR

Dual Logic-Level PWM Outputs for Interface to External

High-Power Drivers

Total Output Accuracy ؎0.8% Over Temperature

Current-Mode Operation

Short Circuit Protection

Power-Good Output

Overvoltage Protection Crowbar Protects

Microprocessors with No Additional

External Components

3.0V

REF

REFERENCE

CMP3

CMP2

GND

DAC+24%

PWRGD

OSCILLATOR

CMP

DAC–18%

CS–

CS+

CMP

CMP1

APPLICATIONS

ADP3161

Desktop PC Power Supplies for:

Intel Pentium^®III Processors

VRM Modules

COMP

VID

DAC

VID3

VID2

VID1

VID0

GENERAL DESCRIPTION

The ADP3161 is a highly efficient dual output synchronous buck

switching regulator controller optimized for converting a 5 V or

12 V main supply into the core supply voltage required by high-

performance processors such as Pentium^®III. The ADP3161

uses an internal 4-bit DAC to read a voltage identification (VID)

code directly from the processor, which is used to set the output

voltage between 1.3 V and 2.05 V. The ADP3161 uses a current

mode PWM architecture to drive two logic-level outputs at a

programmable switching frequency that can be optimized for

VRM size and efficiency. The output signals are 180 degrees out of

phase, allowing for the construction of two complementary buck

switching stages. These two stages share the dc output current

to reduce overall output voltage ripple. An active current bal-

ancing function ensures that both phases carry equal portions

of the total load current, even under large transient loads, to

minimize the size of the inductors.

The ADP3161 also uses a unique supplemental regulation tech-

nique called active voltage positioning to enhance load transient

performance. Active voltage positioning results in a dc/dc con-

verter that meets the stringent output voltage specifications for

high-performance processors, with the minimum number of

output capacitors and smallest footprint. Unlike voltage-mode and

standard current-mode architectures, active voltage positioning

adjusts the output voltage as a function of the load current so

that it is always optimally positioned for a system transient. The

ADP3161 also provides accurate and reliable short circuit protec-

tion and adjustable current limiting.

The ADP3161 is specified over the commercial temperature

range of 0°C to 70°C and is available in a 16-lead narrow body

SOIC package.

ADOPT is a trademark of Analog Devices Inc.

Pentium is a registered trademark of Intel Corporation

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ADP3161JR相关器件

型号	品牌	获取价格	描述	数据表
ADP3161JR-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regu
ADP3161JR-REEL7	ROCHESTER	获取价格	DUAL SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
ADP3162	ADI	获取价格	5-Bit Programmable 2-Phase Synchronous Buck Controller
ADP3162JR	ADI	获取价格	5-Bit Programmable 2-Phase Synchronous Buck Controller
ADP3162JR	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
ADP3162JR-REEL	ADI	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regulator
ADP3162JR-REEL	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
ADP3162JR-REEL7	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
ADP3162JR-REEL7	ADI	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regulator
ADP3162JRZ	ADI	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regulator

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