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)： 11/59頁(yè)
文件大?。?/td> 1072K
代理商： LP3972
LDO 1 to 5
Unless otherwise noted, V
IN
= 3.6V, C
IN
= 1.0 μF, C
OUT
= 0.47 μF, C
(V
RTC
) = 1.0 μF ceramic. Typical values and limits
appearing in normal type apply for T
J
= 25C. Limits appearing in
boldface
type apply over the entire junction temperature
range for operation, 40C to +125C. (Notes 2, 6, 7, 10, 11, 15) and (Note 16).
Symbol
V
OUT
Accuracy
V
OUT
Parameter
Conditions
Min
3
Typ
Max
3
Units
%
Output Voltage Accuracy (Default
V
OUT
)
Line Regulation
Load Current = 1 mA
V
IN
=3.1V to 5.0V, (Note 11) Load
Current = 1 mA
V
IN
= 3.6V,
Load Current = 1 mA to I
MAX
LDO1–4, V
OUT
= 0V
LDO5, V
OUT
= 0V
Load Current = 50 mA (Note 7)
0.15
%/V
Load Regulation
0.011
%/mA
I
SC
Short Circuit Current Limit
400
500
mA
V
IN
-
V
OUT
PSRR
I
Q
Dropout Voltage
150
mV
Power Supply Ripple Rejection
Quiescent Current “On”
Quiescent Current “On”
Quiescent Current “Off”
Turn On Time
Output Capacitor
f = 10 kHz, Load Current = I
MAX
I
OUT
= 0 mA
I
OUT
= I
MAX
EN is de-asserted
Start up from Shut-down
Capacitance for Stability
0C
≤
T
J
≤
125C
40C
≤
T
J
≤
125C
ESR
45
40
60
0.03
300
0.47
dB
μA
T
ON
C
OUT
μsec
0.33
μF
0.68
5
1.0
500
m
LDO dropout voltage vs. Load Current collect data for all LDO’s
Dropout Voltage vs. Load Current
Change in Output Voltage vs. Load Current
20207629
20207630
L
www.national.com
11
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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
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