SNOSBQ7C – JUNE 1999 – REVISED MAY 2013
ELECTRICAL CHARACTERISTICS
Conditions unless otherwise noted: I
OUT
= 500mA, C
IN
= 2.2μF, C
OUT
= 1μF, 0°C
≤
T
J
≤
+125°C, Power Dissipation
≤
1.5W.
Part Number
Output Voltage
Input Voltage (unless otherwise specified)
Symbol
V
O
Parameter
Output Voltage
T
J
= 25°C
5mA
≤
I
OUT
≤
1A,
P
≤
15W
ΔV
O
Line Regulation
T
J
= 25°C,
(1)
LM7912C
−12V
−19V
Min
−11.5
−11.4
5
3
Typ
−12.0
Max
−12.5
−12.6
80
30
Min
−14.4
−14.25
Conditions
LM7915C
−15V
−23V
Typ
−15.0
Max
−15.6
−15.75
5
3
100
50
Units
V
V
V
mV
V
mV
V
mV
mV
mA
mA
V
mA
μV
dB
V
V
A
mV/°C
(−27
≤
V
IN
≤ −14.5)
(−30
≤
V
IN
≤ −14.5)
(−22
≤
V
IN
≤ −16)
(−30
≤
V
IN
≤ −17.5)
(−30
≤
V
IN
≤ −17.5)
(−26
≤
V
IN
≤−20)
15
5
1.5
200
75
3
0.5
(−30
≤V
IN
≤ −17.5)
0.5
375
54
70
1.1
2.2
−1.0
(−30
≤
V
IN
≤ −17.5)
ΔV
O
Load Regulation
T
J
= 25°C,
(1)
5mA
≤
I
OUT
≤
1.5A
250mA
≤
I
OUT
≤
750mA
I
Q
ΔI
Q
Quiescent Current
Quiescent Current
Change
With Load, 5mA
≤
I
OUT
≤
1A
V
n
Output Noise Voltage
Ripple Rejection
Dropout Voltage
I
OMAX
Peak Output Current
Average Temperature
Coefficient of
Output Voltage
(1)
T
A
= 25°C, 10Hz
≤
f
≤
100Hz
f = 120 Hz
T
J
= 25°C, I
OUT
= 1A
T
J
= 25°C
I
OUT
= 5mA,
0 C
≤
T
J
≤
100°C
54
T
J
= 25°C
With Line
15
5
1.5
200
75
3
0.5
(−30
≤
V
IN
≤ −14.5)
0.5
300
70
1.1
2.2
−0.8
(−25
≤
V
IN
≤ −15)
Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle. Changes in output voltage due to
heating effects must be taken into account.
Copyright © 1999–2013, Texas Instruments Incorporated
3
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