Datasheet > ADP3421

ADP3421

更新时间： 2024-02-08 06:03:21

品牌	Logo	应用领域
亚德诺 - ADI		转换器 DC-DC转换器控制器
页数	文件大小	规格书
12页	149K
描述
Geyserville-Enabled DC-DC Converter Controller for Mobile CPUs

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ADP3421 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SSOP	包装说明：	TSSOP,
针数：	28	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.22	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
最大输入电压：	5 V	最小输入电压：	3 V
标称输入电压：	3.3 V	JESD-30 代码：	R-PDSO-G28
JESD-609代码：	e0	长度：	9.7 mm
湿度敏感等级：	3	功能数量：	1
端子数量：	28	最高工作温度：	100 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	座面最大高度：	1.2 mm
表面贴装：	YES	切换器配置：	SINGLE
温度等级：	OTHER	端子面层：	Tin/Lead (Sn85Pb15)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4.4 mm	Base Number Matches：	1

ADP3421 数据手册

Geyserville-Enabled DC-DC

Converter Controller for Mobile CPUs

ADP3421

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Meets Intel^®Mobile Voltage Positioning Requirements

Lowest Processor Dissipation for Longest Battery Life

Best Transient Containment

ADP3421

DACOUT

Minimum Number of Output Capacitors

System Power Management Compliant

Fast, Smooth Output Transition During VID Code

Change

Programmable Current Limit

Power Good

VID4

VID3

CLSET

CS+

CS–

VID DAC

VID2

VID1

CURRENT

LIMIT

COMPARATOR

VID0

Integrated LDO Controllers for Clock and I/O Supplies

Programmable UVLO

VHYS

REG

Soft Start with Restart Lock-In

LTO

LTB

LTI

RAMP

LEVEL

CORE

TRANSLATOR

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

SSL

SOFT START

TIMER

AND

POWER GOOD

GENERATOR

GENERAL DESCRIPTION

I/O LDO

IOFB

BIAS AND

CORE

CONTROLLER

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.

REFERENCE

BIAS EN

VIN/VCC

MONITOR AND

UVLO BIAS

REFERENCE

CONTROLLER

UVLO

VCC

GND

PWRGD

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

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与ADP3421相关器件

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ADP3421JRU	ADI	Geyserville-Enabled DC-DC Converter Controller for Mobile CPUs	获取价格
ADP3421JRU-REEL	ADI	IC SWITCHING CONTROLLER, PDSO28, TSSOP-28, Switching Regulator or Controller	获取价格
ADP3421JRU-REEL	ONSEMI	SWITCHING CONTROLLER, PDSO28, TSSOP-28	获取价格
ADP3421JRU-REEL7	ONSEMI	SWITCHING CONTROLLER, PDSO28, TSSOP-28	获取价格
ADP3421JRUZ-REEL7	ONSEMI	IC SWITCHING CONTROLLER, PDSO28, TSSOP-28, Switching Regulator or Controller	获取价格
ADP3422	ADI	IMVP-II-Compliant Core Power Controller for Mobile CPUs	获取价格

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