參數(shù)資料
型號(hào): LP2951ACDM-3.3
廠商: ON SEMICONDUCTOR
元件分類: 固定/可調(diào)正電壓單路輸出LDO穩(wěn)壓器
英文描述: Micropower Voltage Regulators
中文描述: FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PDSO8
封裝: PLASTIC, MICROPAK-8
文件頁數(shù): 15/18頁
文件大?。?/td> 164K
代理商: LP2951ACDM-3.3
LP2950, LP2951, NCV2951
http://onsemi.com
6
R
L
DROPOUT
VOL
TAGE
(mV)
=
50
T, TEMPERATURE (
°C)
0
200
0
8.0
50
550
100
7.0
4.70
5.0
0.1
400
LOAD
CURRENT
(mA)
t, TIME (ms)
,INPUT
VOL
TAGE
(V)
t, TIME (
ms)
SHUTDOWN
AND
OUTPUT
VOL
TAGE
(V)
t, TIME (
ms)
,OUTPUT
VOL
TAGE
(V)
Vin, INPUT VOLTAGE (V)
DROPOUT
VOL
TAGE
(mV)
Figure 6. Dropout Voltage versus Output Current
IO, OUTPUT CURRENT (mA)
Figure 7. Dropout Voltage versus Temperature
Figure 8. Error Comparator Output
Figure 9. Line Transient Response
Figure 10. LP2951 Enable Transient
Figure 11. Load Transient Response
1.0
10
100
0
50
100
150
4.74
4.78
4.82
4.86
100
200
300
4.90
400
500
600
700
800
0
100
200
300
400
4
2.5
0.5
1.5
2
3
3.5
1
300
200
0
500
450
400
300
7.5
7.0
6.5
6.0
5.5
4.0
3.0
1.0
0
5.0
3.0
1.0
150
100
0
50
RL = 50
Vin Decreasing
Vin Increasing
Vin
Vout
RL = 50 k
TA = 25°C
CL = 1.0 mF
IL = 1.0 mA
VO = 5.0 V
Vout
ILoad
TA = 25°C
IL = 10 mA
Vin = 8.0 V
Vout = 5.0 V
CL = 10 mF
Shutdown Input
350
R
L
DROPOUT
VOL
TAGE
(mV)
=
50
k
55
50
45
40
30
35
350
250
150
100
2.0
OUTPUT
VOL
TAGE
CHANGE
(mV)
4.0
2.0
0
2.0
6.0
4.0
OUTPUT
VOL
TAGE
CHANGE
(mV
)
0
200
400
6.0
4.0
2.0
0
50
V
in
V
out
CL = 1.0 mF
TA = 25°C
LP2951C
RL = 330 k
TA = 25°C
CL = 1.0 mF
Vout = 5.0 V
IL = 400 mA to 75 mA
TA = 25°C
相關(guān)PDF資料
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