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參數(shù)資料
| 型號(hào)： | LP3970 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Power Management Unit for Advanced Application Processors |
| 中文描述： | 電源管理單元的高級(jí)應(yīng)用處理器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 421K |
| 代理商： | LP3970 |
LP3970
Power Management Unit for Advanced Application
Processors
General Description
The LP3970 is a multi-function, programmable Power Man-
agement Unit, designed especially for advanced application
processors. The LP3970 has been optimized for low power
handheld applications PMU provides 11 low dropout, low
noise linear regulators, two DC/DC magnetic buck regula-
tors, a back-up battery charger and 4 GPO’s. A high speed
serial interface is included to program individual regulator
output voltages as well on/off control.
Key Specifications
Buck regulators
n
Programmable V
OUT
from 0.8 to 3.5 V
n
Up to 95% Efficiency
n
600 mA output current
n
+3% output voltage accuracy
LDO’s
n
Programmable V
OUT
of 1.5-3.3 V
n
+3% output voltage accuracy
n
100/150/300 mA output current
n
100 mV (typ) Dropout
Features
n
Compatible with advanced applications processors
n
Additional buck regulator for powering high current
peripheral devices
n
11 LDOs for powering Internal processor functions and
I/O’s
n
Backup battery charger for Lithium and
Lithium-Manganese coin cell batteries
n
Automatic switching to backup battery
n
High speed serial interface for independent control of
device functions and settings
n
Precision internal reference
n
Thermal overload protection
n
Current overload protection
n
48-lead 7x7x0.8 mm LLP package
n
Software Programmable Low Noise LDO’s
Applications
n
PDA phones
n
Smart phones
n
Personal Media Players
n
Digital Cameras
Simplified Application Circuit
20137101
ADVANCE INFORMATION
January 2005
L
2005 National Semiconductor Corporation
DS201371
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3970SQ-31 | 制造商:Texas Instruments 功能描述:PMU FOR APP PROCESSOR POWERWISE |
| LP3970SQ-31/NOPB | 功能描述:IC PMU FOR APP PROCESSOR 48-LLP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 電源管理 - 專(zhuān)用 系列:PowerWise® 應(yīng)用說(shuō)明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| LP3970SQ-35 | 制造商:Texas Instruments 功能描述:PMU FOR APP PROCESSOR POWERWISE |
| LP3970SQ-35/NOPB | 功能描述:IC PMU ADV APPL 48-LLP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 電源管理 - 專(zhuān)用 系列:PowerWise® 應(yīng)用說(shuō)明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件 |
| LP3970SQ-44 | 制造商:Texas Instruments 功能描述:PMU FOR APP PROCESSOR POWERWISE |
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