參數(shù)資料
型號(hào): LP3972
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): 7/59頁(yè)
文件大小: 1072K
代理商: LP3972
Pin Descriptions
(Continued)
Pin #
32
33
34
35
Name
SW3
PGND3
BGND1,2,3
SYNC
I/O
O
G
G
I
Type
PWR
G
G
D
Description
Buck3 switcher output
Buck3 NMOS Power Ground
Bucks 1, 2 and 3 analog Ground
Frequency Synchronization: Connection to an external clock signal
PLL to synchronize the PMIC internal oscillator.
Input Digital enable pin for the high voltage power domain supplies.
Output from the Monahans processor.
Digital enable pin for the Low Voltage domain supplies. Output
signal from the Monahans processor
Buck1 NMOS Power Ground
Buck1 Switcher output
Battery input power to Buck1
36
SYS_EN
I
D
37
38
39
40
PWR_EN
PGND1
SW1
VIN Buck1
I
D
G
G
O
I
PWR
PWR
A: Analog Pin D: Digital Pin G: Ground Pin P: Power Pin I: Input Pin I/O: Input/Output Pin O: Output Pin
Note:
In this document active low logic items are prefixed with a lowercase “n”
L
www.national.com
7
相關(guān)PDF資料
PDF描述
LP3981ILD-3.3 Micropower, 300mA Ultra Low-Dropout CMOS Voltage
LP3991TLX-1.8 300mA Linear Voltage Regulator for Digital Applications
LP3991TLX-2.0 300mA Linear Voltage Regulator for Digital Applications
LP3991TLX-2.5 300mA Linear Voltage Regulator for Digital Applications
LP3991TLX-2.8 300mA Linear Voltage Regulator for Digital Applications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3972_08 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors
LP3972SQ-0514/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
LP3972SQ-5810/NOPB 功能描述:監(jiān)控電路 Pwr Mgmt Unit RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LP3972SQ-A413 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
LP3972SQ-A413/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