Datasheet > ADP3159JRU-REEL

ADP3159JRU-REEL

更新时间： 2024-11-29 20:09:11

品牌	Logo	应用领域
亚德诺 - ADI		开关光电二极管
页数	文件大小	规格书
16页	223K
描述
IC SWITCHING CONTROLLER, PDSO20, TSSOP-20, Switching Regulator or Controller

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ADP3159JRU-REEL 数据手册

4-Bit Programmable

Synchronous Buck Controllers

ADP3159/ADP3179

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Optimally Compensated Active Voltage Positioning

with Gain and Offset Adjustment (ADOPT™) for

Superior Load Transient Response

Complies with VRM 8.4 Specifications with Lowest

System Cost

4-Bit Digitally Programmable 1.3 V to 2.05 V Output

N-Channel Synchronous Buck Driver

Two On-Board Linear Regulator Controllers

Total Accuracy ꢀ0.8% Over Temperature

High Efficiency Current-Mode Operation

Short Circuit Protection

VCC

ADP3159/ADP3179

SET

UVLO

& BIAS

DRVH

DRVL

OSCILLATOR

RESET

PWM

DRIVE

CROWBAR

REFERENCE

REF

GND

DAC+20%

DAC–20%

LR1

PWRGD

LRFB1

Power Good Output

Overvoltage Protection Crowbar Protects Micro-

processors with No Additional External Components

LRDRV1

LR2

CS–

CS+

APPLICATIONS

CMP

LRFB2

LRDRV2

COMP

Core Supply Voltage Generation for:

– +

Intel Pentium^®III

Intel Celeron™

REF

VID DAC

VID3

VID2

VID1

VID0

GENERAL DESCRIPTION

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 it is always optimally positioned for a system tran-

sient. The devices also provide accurate and reliable short

circuit protection and adjustable current limiting. They also

include an integrated overvoltage crowbar function to protect

the microprocessor from destruction in case the core supply

exceeds the nominal programmed voltage by more than 20%.

The ADP3159 and ADP3179 are highly efficient output syn-

chronous buck switching regulator controllers optimized for

converting a 5 V main supply into the core supply voltage

required by high-performance processors. These devices use 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. They use a current mode,

constant off-time architecture to drive two N-channel

MOSFETs at a programmable switching frequency that can be

optimized for regulator size and efficiency.

The ADP3159 and ADP3179 contain two fixed-output volt-

age linear regulator controllers that are designed to drive

external N-channel MOSFETs. The outputs are internally

fixed at 2.5 V and 1.8 V in the ADP3159, while the ADP3179

provides adjustable output, which is set using an external

resistor divider. These linear regulators are used to generate

the auxiliary voltages (AGP, GTL, etc.) required in most moth-

erboard designs, and have been designed to provide a high

bandwidth load-transient response.

The ADP3159 and ADP3179 also use a unique supplemental

regulation technique called Analog Devices Optimal Position-

ing Technology (ADOPT) 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

The ADP3159 and ADP3179 are specified over the commercial

temperature range of 0°C to 70°C and are available in a 20-lead

TSSOP package.

ADOPT is a trademark of Analog Devices, Inc.

Pentium is a registered trademark of Intel Corporation.

Celeron is a trademark of Intel Corporation.

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

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

www.analog.com

12 3 4 5 6 7...16

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与ADP3159JRU-REEL相关器件

型号	品牌	获取价格	描述	数据表
ADP3159JRU-REEL7	ONSEMI	获取价格	IC SWITCHING CONTROLLER, PDSO20, TSSOP-20, Switching Regulator or Controller
ADP3159JRU-REEL7	ADI	获取价格	IC SWITCHING CONTROLLER, PDSO20, TSSOP-20, Switching Regulator or Controller
ADP3159JRU-REEL7	ROCHESTER	获取价格	SWITCHING CONTROLLER, PDSO20, TSSOP-20
ADP315PC87570	ETC	获取价格	Keyboard and Power Management Controller
ADP3160	ADI	获取价格	5-Bit Programmable 2-Phase Synchronous Buck Controller
ADP3160JR	ADI	获取价格	5-Bit Programmable 2-Phase Synchronous Buck Controller
ADP3160JR	ROCHESTER	获取价格	DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
ADP3160JR-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regu
ADP3160JR-REEL7	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regu
ADP3160JRZ-REEL	ADI	获取价格	IC DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16, Switching Regu

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