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參數(shù)資料
| 型號(hào)： | UA78Mxx |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | POSITIVE-VOLTAGE REGULATORS |
| 中文描述： | 正電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 266K |
| 代理商： | UA78MXX |
The
μ
A78M10 and
μ
A78M15 are
obsolete and are no longer supplied
μ
A78M00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS059K
–
JUNE 1976
–
REVISED FEBRUARY 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 8 V, I
O
= 350 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A78M33C
MIN
3.2
UNIT
TYP
3.3
MAX
3.4
O t
Output voltage
IO = 5 mA to 350 mA,
VI = 8 V to 20 V
V
TJ = 0
°
C to 125
°
C
VI = 5.3 V to 25 V
VI = 8 V to 25 V
IO = 100 mA, TJ = 0
°
C to 125
°
C
IO = 300 mA
IO = 5 mA to 500 mA
TJ = 0
°
C to 125
°
C
3.1
3.3
3.5
Input voltage regulation
IO= 200 mA
IO = 200 mA
9
100
mV
3
50
Ripple rejection
VI = 8 V to 18 V,
f = 120 Hz
62
dB
62
80
Output voltage regulation
VI = 8 V,
IO = 5 mA,
f = 10 Hz to 100 kHz
20
100
mV
mV/
°
C
μ
V
V
Temperature coefficient of output voltage
–
1
Output noise voltage
40
200
Dropout voltage
2
Bias current
4.5
6
mA
Bias current change
IO = 200 mA,
IO = 5 mA to 350 mA,
VI = 35 V
VI = 8 V to 25 V, TJ = 0
°
C to 125
°
C
TJ = 0
°
C to 125
°
C
0.8
mA
0.5
Short-circuit output current
300
mA
Peak output current
All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output. Pulse-testing techniques
maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
700
mA
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
O
= 350 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A78M05C
MIN
4.8
UNIT
TYP
MAX
5.2
O t
Output voltage
IO = 5 mA to 350 mA,
VI = 7 V to 20 V
5
V
TJ = 0
°
C to 125
°
C
VI = 7 V to 25 V
VI = 8 V to 25 V
IO = 100 mA, TJ = 0
°
C to 125
°
C
IO = 300 mA
4.75
5.25
Input voltage regulation
IO= 200 mA
IO = 200 mA
3
100
mV
1
50
Ripple rejection
VI = 8 V to 18 V,
f = 120 Hz
62
dB
62
80
Output voltage regulation
IO = 5 mA to 500 mA
IO = 5 mA to 200 mA
IO = 5 mA,
f = 10 Hz to 100 kHz
20
100
mV
10
50
Temperature coefficient of output voltage
TJ = 0
°
C to 125
°
C
–
1
mV/
°
C
μ
V
V
Output noise voltage
40
200
Dropout voltage
2
Bias current
4.5
6
mA
Bias current change
IO = 200 mA,
IO = 5 mA to 350 mA,
VI = 35 V
VI = 8 V to 25 V, TJ = 0
°
C to 125
°
C
TJ = 0
°
C to 125
°
C
0.8
mA
0.5
Short-circuit output current
300
mA
Peak output current
All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output. Pulse-testing techniques
maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.
0.7
A
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