Datasheet > LP3971SQ-A514

LP3971SQ-A514

更新时间： 2024-11-15 11:38:59

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
42页	1373K
描述
POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS

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中文翻译

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技术参数
数据手册

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LP3971SQ-A514 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	HVQCCN,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.15	可调阈值：	NO
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	S-PQCC-N40
长度：	5 mm	信道数量：	3
功能数量：	1	端子数量：	40
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	0.8 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	3.6 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	5 mm	Base Number Matches：	1

LP3971SQ-A514 数据手册

January 2006

LP3971

Power Management Unit for Advanced Application

Processors

General Description

Features

n Compatible with advanced applications processors

requiring DVM (Dynamic Voltage Management)

n Three buck regulators for powering high current

processor functions or I/O’s

The LP3971 is a multi-function, programmable Power Man-

agement Unit, designed especially for advanced application

processors. The LP3971 is optimized for low power hand-

held applications and provides 6 low dropout, low noise

linear regulators, three DC/DC magnetic buck regulators, a

back-up battery charger and two GPIO’s. A high speed serial

interface is included to program individual regulator output

voltages as well as on/off control.

n 6 LDO’s for powering RTC, peripherals, and I/O’s

n Backup battery charger with automatic switch for

lithium-manganese coin cell batteries and Super

capacitors

n I²C compatible high speed serial interface

n Software control of regulator functions and settings

n Precision internal reference

Key Specifications

Buck Regulators

n Thermal overload protection

n Current overload protection

n Programmable V_OUTfrom 0.8 to 3.3V

n Up to 95% efficiency

n Tiny 40-pin 5x5 mm LLP package

n Up to 1.6A output current

3% output voltage accuracy

Applications

LDO’s

n PDA phones

n Programmable V_OUTof 1.0V–3.3V

n Smart phones

n Personal Media Players

n Digital cameras

n Application processors

— Intel Xscale

3% output voltage accuracy

n 150/300/370 mA output currents

— LDO RTC 30 mA

— LDO 1 300 mA

— LDO 2 150 mA

— LDO 3 150 mA

— Freescale

— LDO 4 150 mA

— Samsung

— LDO 5 370 mA

n 100 mV (typ) dropout

DS201807

www.national.com

12 3 4 5 6 7...42

中文翻译

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与LP3971SQ-A514相关器件

型号	品牌	获取价格	描述	数据表
LP3971SQ-B410	TI	获取价格	3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40, 5 X 5 MM, LLP-40
LP3971SQ-B410	NSC	获取价格	POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS
LP3971SQ-B510	NSC	获取价格	IC 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40, 5 X 5 MM, LLP-40, Power Management Circuit
LP3971SQ-B510/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQE-7848/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQE-N510/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQ-F211/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQ-P55A/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQ-U511/NOPB	TI	获取价格	Power Management IC (PMIC) for Advanced Application Processors 40-WQFN
LP3971SQX-A514	NSC	获取价格	POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS

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