Datasheet > ADP3421JRUZ-REEL7

ADP3421JRUZ-REEL7

更新时间： 2022-12-01 23:27:08

品牌	Logo	应用领域
安森美 - ONSEMI		开关光电二极管
页数	文件大小	规格书
13页	143K
描述
IC SWITCHING CONTROLLER, PDSO28, TSSOP-28, Switching Regulator or Controller

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Geyserville-Enabled DC-DC

Converter Controller for Mobile CPUs

ADP3421

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Meets Intel Mobile Voltage Positioning Requirements

Lowest Processor Dissipation for Longest Battery Life

Best Transient Containment

ADP3421

Minimum Number of Output Capacitors

System Power Management Compliant

Fast, Smooth, Output Transition During VID Code

Change

Programmable Current Limit

Power-Good

Integrated LDO Controllers for Clock and I/O Supplies

Programmable UVLO

Soft Start with Restart Lock-In

DACOUT

VID4

VID3

CLSET

CS+

CS–

VID DAC

VID2

VID1

CURRENT

LIMIT

COMPARATOR

VID0

VHYS

REG

LTO

LTB

LTI

RAMP

LEVEL

TRANSLATOR

CORE

COMPARATOR

APPLICATIONS

OUT

Geyserville-Enabled Core DC-DC Converters

Fixed Voltage Mobile CPU Core DC-DC Converters

Notebook/Laptop Power Supplies

Programmable Output Power Supplies

CORE CONTROLLER

CLKDRV

CLKFB

IODRV

CLOCK LDO

CONTROLLER

SSC

GENERAL DESCRIPTION

SSL

SOFT START

The ADP3421 is a hysteretic dc-dc buck converter controller

with two auxiliary linear regulator controllers. The ADP3421

provides a total power conversion control solution for a micro-

processor by delivering the core, I/O, and clock voltages. The

optimized low-voltage design is powered from the 3.3 V system

supply and draws only 10 µA maximum in shutdown. The main

output voltage is set by a 5-bit VID code. To accommodate the

transition time required by the newest processors for on-the-

fly VID changes, the ADP3421 features high-speed operation

to allow a minimized inductor size that results in the fastest change

of current to the output. To further allow for the minimum

number of output capacitors to be used, the ADP3421 features

active voltage positioning that can be optimally compensated

to ensure a superior load transient response. The main output

signal interfaces with the ADP3410 dual MOSFET driver,

which is optimized for high speed and high efﬁciency for driving

both the upper and lower (synchronous) MOSFETs of the

buck converter.

TIMER

AND

POWER GOOD

GENERATOR

I/O LDO

CONTROLLER

IOFB

BIAS AND

REFERENCE

CORE

BIAS EN

VIN/VCC

MONITOR AND

UVLO BIAS

REFERENCE

CONTROLLER

UVLO

VCC

GND

PWRGD

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ADP3421JRUZ-REEL7相关器件

型号	品牌	描述	获取价格	数据表
ADP3422	ADI	IMVP-II-Compliant Core Power Controller for Mobile CPUs	获取价格
ADP3422JRU	ADI	IMVP-II-Compliant Core Power Controller for Mobile CPUs	获取价格
ADP3422JRU-REEL	ONSEMI	5-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28, TSSOP-28	获取价格
ADP3422JRU-REEL	ROCHESTER	5-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28, TSSOP-28	获取价格
ADP3422JRU-REEL7	ADI	IC 5-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28, TSSOP-28, Power Management Circuit	获取价格
ADP3422JRU-REEL7	ONSEMI	5-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28, TSSOP-28	获取价格

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