ADP3194

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	1118K
描述
6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller

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ADP3194 数据手册

www.DataSheet4U.com

6-Bit, Programmable 2-/3-/4-Phase,

Synchronous Buck Controller

ADP3194

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VCC

RAMPADJ RT

Selectable 2-, 3-, or 4-phase operation

Up to 1 MHz per phase

±±9. ꢀV worst-case differential sensing error

over teꢀperature

Logic-level PWM outputs for interface to external

high power drivers

PWM Flex-Mode^TMarchitecture for excellent load

transient perforꢀance

Active current balancing between all output phases

Built-in power good/crowbar blanking supports OTF VID

code changes

6-bit digitally prograꢀꢀable 09837. V to 196 V output

Prograꢀꢀable short circuit protection with prograꢀꢀable

latch-off delay

14 13

ADP3194

SHUNT

REGULATOR

OSCILLATOR

UVLO

SHUTDOWN

AND BIAS

SET

RESET

27 PWM1

26 PWM2

CMP

GND 19

DAC + 150mV

RESET

CSREF

2-/3-/4-PHASE

DRIVER LOGIC

CURRENT-

BALANCING

CIRCUIT

RESET

25 PWM3

DAC – 250mV

RESET

PWM4

DELAY

PWRGD

ILIMIT

CROWBAR

CURRENT

LIMIT

SW1

SW2

SW3

SW4

APPLICATIONS

CSSUM

CURRENT-

LIMIT

CIRCUIT

Desktop PC power supplies for

Next-generation Intel® processors

VRM ꢀodules

DELAY

COMP

16 CSREF

SOFT

START

CSCOMP

Gaꢀes consoles

PRECISION

REFERENCE

VID

DAC

FBRTN

VID4 VID3 VID2 VID1 VID0 VID5

Figure 1. Functional Block Diagram

GENERAL DESCRIPTION

The ADP3194¹is a highly efficient, multiphase, 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 Intel processors. It uses an internal 6-bit

DAC to read a voltage identification (VID) code directly from

the processor that is used to set the output voltage between

0.8375 V and 1.6 V. The device uses a multimode PWM archi-

tecture to drive the logic-level outputs at a programmable

switching frequency that can be optimized for VR size and

efficiency. The phase relationship 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 switch-

ing stages.

The ADP3194 also includes programmable, no-load offset,

and slope functions to adjust the output voltage as a function

of the load current, so it is always optimally positioned for a

system transient. The ADP3194 also provides accurate and

reliable short-circuit protection, adjustable current limiting,

and a delayed power good output that accommodates on-the-

fly (OTF) output voltage changes requested by the CPU.

The devices are specified over the commercial temperature

range of 0°C to +85°C and are available in a 28-lead TSSOP.

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

Rev9 0

Inforꢀation furnished by Analog Devices is believed to be accurate and reliable9 However, no

responsibility is assuꢀed by Analog Devices for its use, nor for any infringeꢀents of patents or other

rights of third parties that ꢀay result froꢀ its use9 Specifications subject to change without notice9 No

license is granted by iꢀplication or otherwise under any patent or patent rights of Analog Devices9

Tradeꢀarks and registeredtradeꢀarks arethe property of their respective owners9

One Technology Way, P9O9 Box ±106, Norwood, MA 02062-±106, U9S9A9

Tel: 781932±94700

Fax: 781946193113

www9analog9coꢀ

12 3 4 5 6 7...32

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与ADP3194相关器件

型号	品牌	获取价格	描述	数据表
ADP3194JRUZ-RL	ADI	获取价格	6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller
ADP3196	ADI	获取价格	6-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3196	ONSEMI	获取价格	6-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3196JCPZ-RL	ONSEMI	获取价格	6-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3196JCPZ-RL	ADI	获取价格	6-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3197	ADI	获取价格	6-Bit Programmable 2-/3-Phase Synchronous Buck Controller
ADP3197JCPZ-RL	ADI	获取价格	6-Bit Programmable 2-/3-Phase Synchronous Buck Controller
ADP3198	ADI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3198	ONSEMI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3198AJCPZ-RL	ADI	获取价格	暂无描述

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