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參數(shù)資料
| 型號： | LP5551 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PowerWise⑩ Technology Compliant Energy Management Unit |
| 中文描述： | ⑩技術(shù)兼容的PowerWise能源管理單元 |
| 文件頁數(shù)： | 7/32頁 |
| 文件大?。?/td> | 3081K |
| 代理商： | LP5551 |
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Symbol
C
OUT
Parameter
Output Capacitance
Output Capacitor ESR
Conditions
0 mA
≤
I
OUT
≤
250 mA
Min
2
5
Typ
4.7
Max
20
500
Units
μF
m
μs
t
START-UP
Start-Up Time from Shut-down
C
OUT
= 4.7 μF, I
OUT
= 250 mA
144
LDO3 (Memory Retention Voltage) Characteristics
V
PVDD1,2
RESETN, ENABLE = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in
boldface type apply over the entire junction temperature range for operation, -40 to +125°C. (Notes 2, 7, 8)
Unless otherwise noted, V
DD_A, _D
,
Symbol
V
OFFSET
Parameter
Active State Buffer offset (=
V
O3
-V
FB
) Output
Conditions
25 mA
≤
I
OUT
≤
50 mA,
V
DD_A, _D
, V
PVDD1,2
= 3.6V,
AVS switcher V
OUT
= 1.2 V,
200 mA
≤
AVS switcher I
OUT
≤
300 mA
I
OUT
= 5 mA,V
OUT
= 1.2 V,
2.7 V
≤
V
DD_A, _D
, V
PVDD1,2
≤
5.5 V
Programming Resolution=50 mV
Min
0
Typ
12
Max
82
Units
mV
V
OUT
Accuracy
V
OUT
Range
Sleep state: Memory retention
voltage regulation
-3.6%
1.2
3.6%
V
Programmable Output Voltage
Range
(Sleep state)
Quiescent Current
0.6
1.2
1.35
V
I
Q
Active mode,
I
OUT
= 10 μA (Note 11)
Sleep mode,
I
OUT
= 10 μA (Note 11)
2.7 V
≤
V
DD_A, _D
, V
PVDD1,2
≤
5.5 V
33
44
μA
10
16
μA
I
OUT
Rated Output Current, Active
state
Rated Output Current, Sleep
state
Output Current Limit, Active
state
Output Voltage Noise
50
mA
2.7 V
≤
V
DD_A, _D
, V
PVDD1,2
≤
5.5 V
5
V
OUT
= 0 V
397
eN
10 Hz
≤
f
≤
100 kHz,
C
OUT
= 1μF
f = 217 Hz, C
OUT
= 1.0 μF
0.0158
mVRMS
PSRR
Power Supply Ripple Rejection
Ratio
Output Capacitance
Output Capacitor ESR
36
dB
C
OUT
0 mA
≤
I
OUT
≤
5 mA
0.7
5
1
2.2
500
μF
m
LDO4 Characteristics
limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the entire junction temperature
range for operation, -40 to +125°C. (Notes 2, 7, 8)
Unless otherwise noted, V
DD_A, _D
, V
PVDD1,2
RESETN, ENABLE = 3.6V. Typical values and
Symbol
V
OUT
Accuracy Output Voltage
Parameter
Conditions
I
OUT
= 125 mA,
V
OUT
= 3.3 V,
3.6 V
≤
V
DD_A, _D
, V
PVDD1,2
≤
5.5 V
1.5-2.3 V =100 mV step, 2.5 V, 2.8V,
3.0 V and 3.3 V
3.6 V
≤
V
DD_A, _D
, V
PVDD1,2
≤
5.5 V
V
OUT
= 0 V
I
OUT
= 125 mA
I
OUT
= 0 mA (Note 11)
Min
-3.7%
Typ
3.3
Max
3.1%
Units
V
V
OUT
Range
Programmable Output Voltage
Range
Rated Output Current
1.5
3.3
3.3
V
I
OUT
0
250
mA
Output Current Limit
629
246
Dropout Voltage(Note 10)
65
mV
I
Q
Quiescent Current
55
μA
7
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