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LP3971SQX-F211 PDF预览

LP3971SQX-F211

更新时间： 2024-11-15 19:52:27
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
50页 708K
描述
IC 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40, 5 X 5 MM, LLP-40, Power Management Circuit

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LP3971SQX-F211 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：5 X 5 MM, LLP-40Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQCC-N40
JESD-609代码：e0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：PLASTIC/EPOXY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技术：CMOS
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：0.4 mm
端子位置：QUAD宽度：5 mm
Base Number Matches：1

LP3971SQX-F211 数据手册

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October 22, 2008  
LP3971  
Power Management Unit for Advanced Application  
Processors  
General Description  
Features  
The LP3971 is a multi-function, programmable Power Man-  
agement Unit, designed especially for advanced application  
processors. The LP3971 is optimized for low power handheld  
applications and provides 6 low dropout, low noise linear reg-  
ulators, 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.  
Compatible with advanced applications processors  
requiring DVM (Dynamic Voltage Management)  
Three buck regulators for powering high current processor  
functions or I/O's  
■
■
6 LDO's for powering RTC, peripherals, and I/O's  
■
■
Backup battery charger with automatic switch for lithium-  
manganese coin cell batteries and Super capacitors  
I2C compatible high speed serial interface  
■
■
■
■
■
■
Software control of regulator functions and settings  
Key Specifications  
Precision internal reference  
Buck Regulators  
Thermal overload protection  
Programmable VOUT from 0.725 to 3.3V  
■
■
■
■
Current overload protection  
Up to 95% efficiency  
Tiny 40-pin 5x5 mm LLP package  
Up to 1.6A output current  
±3% output voltage accuracy  
Applications  
PDA phones  
■
■
■
■
LDO’s  
Smart phones  
Programmable VOUT of 1.0V–3.3V  
■
■
■
Personal Media Players  
±3% output voltage accuracy  
Digital cameras  
150/300/370 mA output currents  
Application processors  
■
LDO RTC 30 mA  
LDO 1 300 mA  
LDO 2 150 mA  
LDO 3 150 mA  
LDO 4 150 mA  
LDO 5 370 mA  
—
—
—
—
—
—
Marvell PXA  
Freescale  
Samsung  
—
—
—
100 mV (typ) dropout  
■
© 2008 National Semiconductor Corporation  
201807  
www.national.com  
1234567...50

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