
MC7900 Series
http://onsemi.com
5
MC7912C
ELECTRICAL CHARACTERISTICS
(V
I
= –19 V, I
O
= 500 mA, 0
°
C < T
J
< +125
°
C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= +25
°
C)
V
O
–11.5
–12
–12.5
Vdc
Line Regulation (Note 4)
(T
J
= +25
°
C, I
O
= 100 mA)
–14.5 Vdc
≥
V
I
≥
–30 Vdc
–16 Vdc
≥
V
I
≥
–22 Vdc
(T
J
= +25
°
C, I
O
= 500 mA)
–14.5 Vdc
≥
V
I
≥
–30 Vdc
–16 Vdc
≥
V
I
≥
–22 Vdc
Reg
line
–
–
–
–
13
6.0
55
24
120
60
240
120
mV
Load Regulation, T
J
= +25
°
C (Note 4)
5.0 mA
≤
I
O
≤
1.5 A
250 mA
≤
I
O
≤
750 mA
Reg
load
–
–
46
17
240
120
mV
Output Voltage
–14.5 Vdc
≥
V
I
≥
–27 Vdc, 5.0 mA
≤
I
O
≤
1.0 A, P
≤
15 W
V
O
–11.4
–
–12.6
Vdc
Input Bias Current (T
J
= +25
°
C)
I
IB
–
4.4
8.0
mA
Input Bias Current Change
–14.5 Vdc
≥
V
I
≥
–30 Vdc
5.0 mA
≤
I
O
≤
1.5 A
I
IB
–
–
–
–
1.0
0.5
mA
Output Noise Voltage (T
A
= +25
°
C, 10 Hz
≤
f
≤
100 kHz)
V
n
–
75
–
μ
V
Ripple Rejection (I
O
= 20 mA, f = 120 Hz)
RR
–
61
–
dB
Dropout Voltage (I
O
= 1.0 A, T
J
= +25
°
C)
V
I
–V
O
–
2.0
–
Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, 0
°
C
≤
T
J
≤
+125
°
C
V
O
/
T
–
–1.0
–
mV/
°
C
MC7912AC
ELECTRICAL CHARACTERISTICS
(V
I
= –19 V, I
O
= 500 mA, 0
°
C < T
J
< +125
°
C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= +25
°
C)
V
O
–11.75
–12
–12.25
Vdc
Line Regulation (Note 4)
–16 Vdc
≥
V
I
≥
–22 Vdc; I
O
= 1.0 A, T
J
= +25
°
C
–16 Vdc
≥
V
I
≥
–22 Vdc; I
O
= 1.0 A
–14.8 Vdc
≥
V
I
≥
–30 Vdc; I
O
= 500 mA
–14.5 Vdc
≥
V
I
≥
–27 Vdc; I
O
= 1.0 A, T
J
= +25
°
C
Reg
line
–
–
–
–
6.0
24
24
13
60
120
120
120
mV
Load Regulation (Note 4)
5.0 mA
≤
I
O
≤
1.5 A, T
J
= +25
°
C
250 mA
≤
I
O
≤
750 mA
5.0 mA
≤
I
O
≤
1.0 A
Reg
load
–
–
–
46
17
35
150
75
150
mV
Output Voltage
–14.8 Vdc
≥
V
I
≥
–27 Vdc, 5.0 mA
≤
I
O
≤
1.0 A, P
≤
15 W
V
O
–11.5
–
–12.5
Vdc
Input Bias Current
I
IB
–
4.4
8.0
mA
Input Bias Current Change
–15 Vdc
≥
V
I
≥
–30 Vdc
5.0 mA
≤
I
O
≤
1.0 A
5.0 mA
≤
I
O
≤
1.5 A, T
J
= +25
°
C
I
IB
–
–
–
–
–
–
0.8
0.5
0.5
mA
Output Noise Voltage (T
A
= +25
°
C, 10 Hz
≤
f
≤
100 kHz)
V
n
–
75
–
μ
V
Ripple Rejection (I
O
= 20 mA, f = 120 Hz)
RR
–
61
–
dB
Dropout Voltage (I
O
= 1.0 A, T
J
= +25
°
C)
V
I
–V
O
–
2.0
–
Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 A, 0
°
C
≤
T
J
≤
+125
°
C
V
O
/
T
–
–1.0
–
mV/
°
C
4. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.