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參數(shù)資料
| 型號： | LP5552 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PWI 2.0 and PowerWise⑩ Technology Compliant Energy Management Unit |
| 中文描述： | PWI 2.0標(biāo)準(zhǔn)以及PowerWise技術(shù)兼容⑩能源管理組 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 508K |
| 代理商： | LP5552 |
LP5552
PWI 2.0 and PowerWise
Technology Compliant Energy
Management Unit
General Description
The LP5552 is a PWI 2.0 compliant Energy Management
System for reducing power consumption of stand-alone mo-
bile phone processors such as base-band or applications
processors.
The LP5552 contains two advanced, digitally controlled
switching regulators for supplying variable voltage to proces-
sor core and memory. The device also incorporates 5 pro-
grammable LDO regulators for powering I/O, peripheral logic
blocks, maintaining memory retention (dual-domains) in
shutdown mode, and auxillary functions.
The device is controlled via the PWI 2.0 open-standard
interface. The LP5552 operates cooperatively with Power-
Wise technology compatible processors to optimize supply
voltages adaptively over process and temperature variations
(adaptive voltage scaling) or dynamically using frequency/
voltage pre-characterized look-up tables (dynamic voltage
scaling).
Features
n
Two 800 mA buck regulators operate 180 degrees out of
phase for reduced EMI
n
3.6 MHz PWM switching frequency
n
Five programmable LDOs ideal for I/O , PLL, and
memory retention supply generation.
n
Supports high-efficiency PowerWise Technology
Adaptive Voltage Scaling
n
PWI 2.0 open standard interface for system power
management
n
Digitally controlled intelligent voltage scaling
n
Auto or PWI controlled PFM mode transition
n
Internal soft start/startup sequencing.
n
Power OK output.
Applications
n
Dual core processors
n
GSM/GPRS/EDGE & UMTS cellular handsets
n
Hand-held radios
n
PDAs
n
Battery powered devices
n
Portable instruments
System Diagram
20210301
FIGURE 1. System Diagram
ADVANCE INFORMATION
September 2006
L
2006 National Semiconductor Corporation
DS202103
www.national.com
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| LP5951MF-3.0 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MF-3.3 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MFX-1.3 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP5552_08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PWI 2.0 and PowerWise Technology Compliant Energy Management Unit |
| LP5552TL/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP5552TLEV | 功能描述:電源管理IC開發(fā)工具 LP5552TL EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LP5552TLX/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP5553 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PowerWise? AVS Energy Management Unit with SPMI |
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