Datasheet

MC7900 Series
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3
MC7905AC
ELECTRICAL CHARACTERISTICS
(V
I
= −10 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
−4.9 −5.0 −5.1 Vdc
Line Regulation (Note 2)
−8.0 Vdc ≥ V
I
≥ −12 Vdc; I
O
= 1.0 A, T
J
= +25°C
−8.0 Vdc ≥ V
I
≥ −12 Vdc; I
O
= 1.0 A
−7.5 Vdc ≥ V
I
≥ −25 Vdc; I
O
= 500 mA
−7.0 Vdc ≥ V
I
≥ −20 Vdc; I
O
= 1.0 A, T
J
= +25°C
Reg
line
−
−
−
−
2.0
7.0
7.0
6.0
25
50
50
50
mV
Load Regulation (Note 2)
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
−
−
−
11
4.0
9.0
100
50
100
mV
Output Voltage
−7.5 Vdc ≥ V
I
≥ −20 Vdc, 5.0 mA ≤ I
O
≤ 1.0 A, P ≤ 15 W
V
O
−4.80 − −5.20
Vdc
Input Bias Current I
IB
− 4.4 8.0 mA
Input Bias Current Change
−7.5 Vdc ≥ V
I
≥ −25 Vdc
5.0 mA ≤ I
O
≤ 1.0 A
5.0 mA ≤ I
O
≤ 1.5 A, T
J
= +25°C
DI
IB
−
−
−
−
−
−
1.3
0.5
0.5
mA
Output Noise Voltage (T
A
= +25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
− 40 −
mV
Ripple Rejection (I
O
= mA, f = 120 Hz) RR − 70 − 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, 0°C ≤ T
J
≤ +125°C
DV
O
/DT
− −1.0 −
mV/°C
MC7905.2C
ELECTRICAL CHARACTERISTICS
(V
I
= −10 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
−5.0 −5.2 −5.4 Vdc
Line Regulation (Note 2)
(T
J
= +25°C, I
O
= 100 mA)
−7.2 Vdc ≥ V
I
≥ −25 Vdc
−8.0 Vdc ≥ V
I
≥ −12 Vdc
(T
J
= +25°C, I
O
= 500 mA)
−7.2 Vdc ≥ V
I
≥ −25 Vdc
−8.0 Vdc ≥ V
I
≥ −12 Vdc
Reg
line
−
−
−
−
8.0
2.2
37
8.5
52
27
105
52
mV
Load Regulation, T
J
= +25°C (Note 2)
5.0 mA ≤ I
O
≤ 1.5 A
250 mA ≤ I
O
≤ 750 mA
Reg
load
−
−
12
4.5
105
52
mV
Output Voltage
−7.2 Vdc ≥ V
I
≥ −20 Vdc, 5.0 mA ≤ I
O
≤ 1.0 A, P ≤ 15 W
V
O
−4.95 − −5.45
Vdc
Input Bias Current (T
J
= +25°C) I
IB
− 4.3 8.0 mA
Input Bias Current Change
−7.2 Vdc ≥ V
I
≥ −25 Vdc
5.0 mA ≤ I
O
≤ 1.5 A
DI
IB
−
−
−
−
1.3
0.5
mA
Output Noise Voltage (T
A
= +25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
− 42 −
mV
Ripple Rejection (I
O
= 20 mA, f = 120 Hz) RR − 68 − 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, 0°C ≤ T
J
≤ +125°C
DV
O
/DT
− −1.0 −
mV/°C
2. 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.