Datasheet > ADP3192A

ADP3192A

更新时间： 2024-11-01 04:31:39

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
32页	1033K
描述
8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller

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ADP3192A 数据手册

8-Bit Programmable 2- to 4-Phase

Synchronous Buck Controller

ADP3192A

FUNCTIONAL BLOCK DIAGRAM

FEATURES

VCC

RT RAMPADJ

12 13

Selectable 2-, 3-, or 4-phase operation at up to

1 MHz per phase

7.7 mV worst-case differential sensing error over

temperature

Logic-level PWM outputs for interface to external high

power drivers

Fast enhanced PWM (FEPWM) flex mode for excellent load

transient performance

Active current balancing between all output phases

Built-in power-good/crowbar blanking supports on-the-fly

VID code changes

Digitally programmable 0.5 V to 1.6 V output supports both

VR10.x and VR11 specifications

SHUNT

REGULATOR

OSCILLATOR

UVLO

SHUTDOWN

SET EN

RESET

GND

CMP

PWM1

PWM2

PWM3

–

850mV

RESET

CMP

–

DAC

+ 150mV

–

RESET

CMP

–

2/3/4-PHASE

CSREF

DRIVER LOGIC

RESET

27 PWM4

–

CMP

–

DAC

– 350mV

CURRENT

LIMIT

DELAY

PWRGD

CROWBAR

SW1

SW2

SW3

Programmable short-circuit protection with programmable

latch-off delay

TTSENSE

VRHOT

THERMAL

THROTTLING

CONTROL

VRFAN

SW4

CSCOMP

CSREF

ILIMIT

CURRENT

–

APPLICATIONS

MEASUREMENT

AND LIMIT

DELAY

CSSUM

IMON

Desktop PC power supplies for next generation

Intel® processors

VRM modules

IREF

–

COMP

PRECISION

LLSET

REFERENCE

–

BOOT

VOLTAGE

AND

SOFT START

CONTROL

FBRTN

VIDSEL

VID DAC

ADP3192A

VID7 VID6 VID5 VID4 VID3 VID2 VID1 VID0

Figure 1.

GENERAL DESCRIPTION

The ADP3192A¹is a highly efficient, multiphase, synchronous

buck-switching regulator controller optimized for converting a

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

performance Intel processors. It uses an internal 8-bit DAC to read

a voltage identification (VID) code directly from the processor,

which is used to set the output voltage between 0.5 V and 1.6 V.

The ADP3192A also includes programmable no load offset and

slope functions to adjust the output voltage as a function of the

load current, optimally positioning it for a system transient. In

addition, the ADP3192A provides accurate and reliable short-

circuit protection, adjustable current limiting, and a delayed

power-good output that accommodates on-the-fly output

voltage changes requested by the CPU.

This device uses a multimode PWM architecture to drive the

logic-level outputs at a programmable switching frequency that

can be optimized for VR size and efficiency. The phase relation-

ship of the output signals can be programmed to provide 2-, 3-,

or 4-phase operation, allowing for the construction of up to

four complementary buck-switching stages.

The ADP3192A has a built-in shunt regulator that allows the part

to be connected to the 12 V system supply through a series resistor.

The ADP3192A is specified over the extended commercial

temperature range of 0°C to 85°C and is available in a

40-lead LFCSP.

¹Protected by U.S. Patent Number 6,683,441; other patents pending.

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 that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...32

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与ADP3192A相关器件

型号	品牌	获取价格	描述	数据表
ADP3192AJCPZ-RL	ADI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3192JCPZ-RL	ADI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3193	ADI	获取价格	4-Bit Programmable Synchronous Buck Controllers
ADP3193A	ADI	获取价格	8-Bit, Programmable, 2- to 3-Phase, Synchronous Buck Controller
ADP3193A	ONSEMI	获取价格	8-Bit, Programmable, 2- to 3-Phase, Synchronous Buck Controller
ADP3193AJCPZ-RL	ONSEMI	获取价格	8-Bit, Programmable, 2- to 3-Phase, Synchronous Buck Controller
ADP3193AJCPZ-RL	ADI	获取价格	8-Bit, Programmable, 2- to 3-Phase, Synchronous Buck Controller
ADP3193JCPZ-RL	ADI	获取价格	IC SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, QCC32, 5 X 5 MM, LEAD FREE, MO-220VH
ADP3194	ADI	获取价格	6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller
ADP3194JRUZ-RL	ADI	获取价格	6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller

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