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LP3971SQE-7848/NOPB PDF预览

LP3971SQE-7848/NOPB

更新时间： 2024-11-15 20:56:15
品牌 Logo 应用领域
德州仪器 - TI 集成电源管理电路
页数 文件大小 规格书
54页 1380K
描述
Power Management IC (PMIC) for Advanced Application Processors 40-WQFN

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LP3971SQE-7848/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：HVQCCN, LCC40,.2SQ,16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.66
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：S-XQCC-N40JESD-609代码：e3
长度：5 mm湿度敏感等级：1
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：UNSPECIFIED
封装代码：HVQCCN封装等效代码：LCC40,.2SQ,16
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）：260电源：3/5 V
认证状态：Not Qualified座面最大高度：0.8 mm
子类别：Power Management Circuits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
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.4 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

LP3971SQE-7848/NOPB 数据手册

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LP3971  
www.ti.com  
SNVS432V –JANUARY 2006–REVISED MAY 2013  
LP3971 Power Management Unit for Advanced Application Processors  
Check for Samples: LP3971  
1
FEATURES  
KEY SPECIFICATIONS  
2
•
Compatible with Advanced Applications  
Processors Requiring DVM (Dynamic Voltage  
Management)  
•
Buck Regulators  
–
–
–
–
Programmable VOUT from 0.725 to 3.3V  
Up to 95% Efficiency  
•
•
•
Three Buck Regulators for Powering High  
Current Processor Functions or I/O's  
Up to 1.6A Output Current  
±3% Output Voltage Accuracy  
6 LDO's for Powering RTC, Peripherals, and  
I/O's  
•
LDO’s  
–
–
–
Programmable VOUT of 1.0V–3.3V  
Backup Battery Charger with Automatic  
Switch for Lithium-Manganese Coin Cell  
Batteries and Super Capacitors  
I2C Compatible High Speed Serial Interface  
±3% output voltage accuracy  
150/300/370 mA output currents  
•
•
–
–
–
–
–
–
LDO RTC 30 mA  
LDO 1 300 mA  
LDO 2 150 mA  
LDO 3 150 mA  
LDO 4 150 mA  
LDO 5 370 mA  
Software Control of Regulator Functions and  
Settings  
•
•
•
•
Precision Internal Reference  
Thermal Overload Protection  
Current Overload Protection  
Tiny 40-pin 5x5 mm WQFN Package  
–
100 mV (typ) dropout  
APPLICATIONS  
DESCRIPTION  
The LP3971 is a multi-function, programmable Power  
Management Unit, designed especially for advanced  
application processors. The LP3971 is optimized for  
low power handheld 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.  
•
•
•
•
•
PDA Phones  
Smart Phones  
Personal Media Players  
Digital Cameras  
Application Processors  
–
–
–
Marvell PXA  
Freescale  
Samsung  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2013, Texas Instruments Incorporated  
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