MC7900_06 Datasheet, PDF (7/16 Pages) ON Semiconductor – 1.0 A Negative Voltage Regulators

MC7900 Series
MC7918C
ELECTRICAL CHARACTERISTICS (V_I = − 27 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)
Line Regulation (Note 6)
(T_J = +25°C, I_O = 100 mA)
−21 Vdc ≥ V_I ≥ − 33 Vdc
−24 Vdc ≥ V_I ≥ − 30 Vdc
(T_J = +25°C, I_O = 500 mA)
−21 Vdc ≥ V_I ≥ − 33 Vdc
−24 Vdc ≥ V_I ≥ − 30 Vdc
Load Regulation, T_J = +25°C (Note 6)
5.0 mA ≤ I_O ≤ 1.5 A
250 mA ≤ I_O ≤ 750 mA
V_O
−17.3 −18 −18.7 Vdc
Reg_line
mV
−
25
180
−
10
90
−
90
360
−
50
180
Reg_load
mV
−
110
360
−
55
180
Output Voltage
−21 Vdc ≥ V_I ≥ − 33 Vdc, 5.0 mA ≤ I_O ≤ 1.0 A, P ≤ 15 W
V_O
Vdc
−17.1
−
−18.9
Input Bias Current (T_J = +25°C)
Input Bias Current Change
−21 Vdc ≥ V_I ≥ − 33 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, 0°C ≤ T_J ≤ +125°C
I_IB
−
4.5
8.0
mA
DI_IB
mA
−
−
1.0
−
−
0.5
V_n
−
110
−
mV
RR
−
59
−
dB
V_I−V_O
−
1.3
−
Vdc
DV_O/DT
mV/°C
−
−1.0
−
MC7924B, MC7924C
ELECTRICAL CHARACTERISTICS (V_I = − 33 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 6)
(T_J = +25°C, I_O = 100 mA)
−27 Vdc ≥ V_I ≥ − 38 Vdc
−30 Vdc ≥ V_I ≥ − 36 Vdc
(T_J = +25°C, I_O = 500 mA)
−27 Vdc ≥ V_I ≥ − 38 Vdc
−30 Vdc ≥ V_I ≥ − 36 Vdc
Load Regulation, T_J = +25°C (Note 6)
5.0 mA ≤ I_O ≤ 1.5 A
250 mA ≤ I_O ≤ 750 mA
V_O
− 23
− 24
− 25
Vdc
Reg_line
mV
−
31
240
−
14
120
−
118
470
−
70
240
Reg_load
mV
−
150
480
−
85
240
Output Voltage
−27 Vdc ≥ V_I ≥ − 38 Vdc, 5.0 mA ≤ I_O ≤ 1.0 A, P ≤ 15 W
V_O
Vdc
− 22.8
−
− 25.2
Input Bias Current (T_J = +25°C)
I_IB
−
4.6
8.0
mA
Input Bias Current Change
−27 Vdc ≥ V_I ≥ − 38 Vdc
5.0 mA ≤ I_O ≤ 1.5 A
DI_IB
mA
−
−
1.0
−
−
0.5
Output Noise Voltage (T_A = +25°C, 10 Hz ≤ f ≤ 100 kHz)
V_n
−
170
−
mV
Ripple Rejection (I_O = 20 mA, f = 120 Hz)
RR
−
56
−
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 mA, Tlow* ≤ T_J ≤ +125°C
DV_O/DT
mV/°C
−
−1.0
−
6. 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 MC7924B and Tlow = 0°C for MC7924C.
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