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參數(shù)資料
| 型號： | LM340 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Series 3-Terminal Positive Regulators |
| 中文描述： | 系列三端穩(wěn)壓器正 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 205K |
| 代理商： | LM340 |
LM340, A Series
4
MOTOROLA ANALOG IC DEVICE DATA
LM340A–5.0
ELECTRICAL CHARACTERISTICS
(Vin = 10 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = +25
°
C)
IO = 5.0 mA to 1.0 A
VO
4.9
5.0
5.1
Vdc
Line Regulation
7.5 Vdc to 20 Vdc, IO = 500 mA
7.3 Vdc to 25 Vdc (TJ = +25
°
C)
8.0 Vdc to 12 Vdc
8.0 Vdc to 12 Vdc (TJ = +25
°
C)
Load Regulation
5.0 mA
≤
IO
≤
1.0 A
5.0 mA
≤
IO
≤
1.5 A (TJ = +25
°
C)
250 mA
≤
IO
≤
750 mA (TJ = +25
°
C)
Regline
–
–
–
–
–
3.0
–
–
10
10
12
4.0
mV
Regload
–
–
–
–
–
–
25
25
15
mV
Output Voltage
7.5
≤
Vin
≤
20 Vdc, 5.0 mA
≤
IO
≤
1.0 A, PD
≤
15 W
VO
4.8
–
5.2
Vdc
Quiescent Current
TJ = +25
°
C
IB
–
–
–
3.5
6.5
6.0
mA
Quiescent Current Change
5.0 mA
≤
IO
≤
1.0 A, Vin = 10 V
8.0
≤
Vin
≤
25 Vdc, IO = 500 mA
7.5
≤
Vin
≤
20 Vdc, IO = 1.0 A (TJ = +25
°
C)
IB
–
–
–
–
–
–
0.5
0.8
0.8
mA
Ripple Rejection
8.0
≤
Vin
≤
18 Vdc, f = 120 Hz
IO = 500 mA
IO = 1.0 A (TJ = +25
°
C)
RR
68
68
–
80
–
–
dB
Dropout Voltage
VI – VO
rO
ISC
Vn
–
1.7
–
Vdc
Output Resistance (f = 1.0 kHz)
–
2.0
–
m
Short Circuit Current Limit (TJ = +25
°
C)
Output Noise Voltage (TA = +25
°
C)
10 Hz
≤
f
≤
100 kHz
–
2.0
–
A
–
40
–
μ
V
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA
TCVO
–
±
0.6
–
mV/
°
C
Peak Output Current (TJ = +25
°
C)
Input Voltage to Maintain Line Regulation (TJ = +25
°
C)
IO = 1.0 A
IO
–
2.4
–
A
7.3
–
–
Vdc
NOTE:
1. Tlow to Thigh = 0
°
to +125
°
C
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