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ADP3191AJRUZ-RL

更新时间： 2024-11-01 04:02:23

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
28页	846K
描述
6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller

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ADP3191AJRUZ-RL 数据手册

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

Synchronous Buck Controller

ADP3191

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VCC

RAMPADJ RT

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

1 MHz per phase

14ꢀ. ꢁV worst-case differential sensing error

over teꢁperature

Logic-level PWM outputs for interface to external

high power drivers

14 13

SHUNT

REGULATOR

(ADP3191 ONLY)

OSCILLATOR

UVLO

SHUTDOWN

AND BIAS

SET

CMP

RESET

PWM1

PWM2

GND

DAC+150mV

PWM Flex-Mode^TMarchitecture for excellent load

transient perforꢁance

Active current balancing between all output phases

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

VID code changes

6-bit digitally prograꢁꢁable 0ꢀ837. V to 1ꢀ6 V output

CMP

RESET

CSREF

CURRENT

BALANCING

CIRCUIT

2-/3-/4-PHASE

DRIVER LOGIC

CMP

RESET

PWM3

PWM4

DAC–250mV

CMP

RESET

PWRGD

DELAY

CROWBAR

CURRENT

LIMIT

Prograꢁꢁable short circuit protection with prograꢁꢁable

latch-off delay

SW1

SW2

SW3

SW4

APPLICATIONS

ILIMIT

Desktop PC power supplies for

Next-generation Intel® processors

VRM ꢁodules

CSSUM

CSREF

CURRENT

LIMIT

CIRCUIT

DELAY

Gaꢁes consoles

CSCOMP

SOFT

START

GENERAL DESCRIPTION

The ADP3191/ADP3191A¹are highly efficient, multiphase,

synchronous buck switching regulator controllers optimized for

converting a 5 V or 12 V main supply into the core supply voltage

required by high performance Intel processors. They use an

internal 6-bit DAC to read a voltage identification (VID) code

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

voltage between 0.8375 V and 1.6 V. The devices use a multimode

PWM architecture to drive the logic-level outputs at a program-

mable 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

switching stages.

COMP

PRECISION

VID

DAC

REFERENCE

ADP3191/

ADP3191A

FBRTN

VID4 VID3 VID2 VID1 VID0 VID5

Figure 1.

The ADP3191/ADP3191A also include 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 ADP3191/ADP3191A also provide

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.

The ADP3191 is a replacement for the ADP3181. A built-in

shunt regulator allows the part to be connected to the 12 V

system supply through a series resistor.

The devices are specified over the commercial temperature

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

and a 28-lead QSOP.

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

Revꢀ 0

Inforꢁation furnished by Analog Devices is believed to be accurate and reliableꢀ However, no

responsibility is assuꢁed by Analog Devices for its use, nor for any infringeꢁents of patents or other

rights of third parties that ꢁay result froꢁ its useꢀ Specifications subject to change without noticeꢀ No

license is granted by iꢁplication or otherwise under any patent or patent rights of Analog Devicesꢀ

Tradeꢁarks and registeredtradeꢁarks arethe property of their respective ownersꢀ

One Technology Way, PꢀOꢀ Box 9106, Norwood, MA 02062-9106, UꢀSꢀAꢀ

Tel: 781ꢀ329ꢀ4700

Fax: 781ꢀ461ꢀ3113

wwwꢀanalogꢀcoꢁ

12 3 4 5 6 7...28

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与ADP3191AJRUZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADP3191JRQZ-RL	ADI	获取价格	6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller
ADP3191JRQZ-RL	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO28, LEAD FREE, MO-137AF, QSOP-28
ADP3191JRUZ-RL	ADI	获取价格	6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller
ADP3191JRUZ-RL	ROCHESTER	获取价格	SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PDSO28, LEAD FREE, MO-153AE, TSSOP-28
ADP3192	ADI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
ADP3192A	ADI	获取价格	8-Bit Programmable 2- to 4-Phase Synchronous Buck Controller
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

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