MC7900_05 Datasheet, PDF (5/16 Pages) ON Semiconductor – 1.0 A Negative Voltage Regulators

MC7900 Series
MC7912B, MC7912C
ELECTRICAL CHARACTERISTICS (V_I = −19 V, I_O = 500 mA, Tlow* < T_J < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (T_J = +25°C)
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
Load Regulation, T_J = +25°C (Note 4)
5.0 mA ≤ I_O ≤ 1.5 A
250 mA ≤ I_O ≤ 750 mA
V_O
−11.5 −12 −12.5 Vdc
Reg_line
mV
−
13
120
−
6.0
60
−
−
Reg_load
−
−
55
240
24
120
mV
46
240
17
120
Output Voltage
−14.5 Vdc ≥ V_I ≥ − 27 Vdc, 5.0 mA ≤ I_O ≤ 1.0 A, P ≤ 15 W
V_O
Vdc
−11.4
−
−12.6
Input Bias Current (T_J = +25°C)
Input Bias Current Change
−14.5 Vdc ≥ V_I ≥ − 30 Vdc
5.0 mA ≤ I_O ≤ 1.5 A
Output Noise Voltage (T_A = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Ripple Rejection (I_O = 20 mA, f = 120 Hz)
Dropout Voltage (I_O = 1.0 A, T_J = +25°C)
Average Temperature Coefficient of Output Voltage
I_O = 5.0 mA, Tlow* ≤ T_J ≤ +125°C
I_IB
−
4.4
8.0
mA
DI_IB
mA
−
−
1.0
−
−
0.5
V_n
−
75
−
mV
RR
−
61
−
dB
V_I−V_O
−
1.3
−
Vdc
DV_O/DT
mV/°C
−
−1.0
−
MC7912AC
ELECTRICAL CHARACTERISTICS (V_I = −19 V, I_O = 500 mA, Tlow* < T_J < +125°C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
Output Voltage (T_J = +25°C)
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
V_O
−11.75 −12 −12.25 Vdc
Reg_line
mV
−
6.0
60
−
24
120
−
24
120
−
13
120
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
Output Voltage
−14.8 Vdc ≥ V_I ≥ − 27 Vdc, 5.0 mA ≤ I_O ≤ 1.0 A, P ≤ 15 W
Reg_load
−
−
−
mV
46
150
17
75
35
150
V_O
Vdc
−11.5
−
−12.5
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
DI_IB
mA
−
−
0.8
−
−
0.5
−
−
0.5
Output Noise Voltage (T_A = +25°C, 10 Hz ≤ f ≤ 100 kHz)
V_n
−
75
−
mV
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
−
1.3
−
Vdc
Average Temperature Coefficient of Output Voltage
I_O = 5.0 A, Tlow* ≤ T_J ≤ +125°C
DV_O/DT
mV/°C
−
−1.0
−
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.
*Tlow = −40°C for MC7912B and Tlow = 0°C for MC7912C.
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