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參數(shù)資料
| 型號： | 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應(yīng)用處理器 |
| 文件頁數(shù)： | 10/59頁 |
| 文件大?。?/td> | 1072K |
| 代理商： | LP3972 |
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LDO RTC
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) and (Note 10)
Symbol
V
OUT
Accuracy
V
OUT
Parameter
Conditions
Min
2.632
Typ
2.8
Max
2.968
Units
V
Output Voltage Accuracy
V
IN
Connected, Load Current =
1 mA
V
IN
= (V
OUT
nom + 1.0V) to 5.5V
(Note 11) Load Current = 1 mA
From Main Battery
Load Current = 1 mA to 30 mA
From Backup Battery
V
IN
= 3.0V
Load Current = 1 mA to 10 mA
From Main Battery
V
IN
= V
OUT
+0.3V to 5.5V
From Backup Battery
Load Current = 10 mA
Line Regulation
0.15
%/V
Load Regulation
0.05
%/mA
0.5
I
SC
Short Circuit Current Limit
100
mA
30
V
IN
-
V
OUT
I
Q
_Max
TP1
Dropout Voltage
375
mV
Maximum Quiescent Current
RTC LDO Input Switched from
Main Battery to Backup Battery
RTC LDO Input Switched from
Backup Battery to Main Battery
Output Capacitor
I
OUT
= 0 mA
V
IN
Falling
30
2.9
μA
V
TP2
V
IN
Rising
3.0
V
C
O
Capacitance for Stability
ESR
0.7
5
1.0
μF
m
500
L
www.national.com
10
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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)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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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