MC78M00, MC78M00A, NCV78M00 Series
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6
MC78M20C/B ELECTRICAL CHARACTERISTICS (VI = 29 V, IO = 350 mA, TJ = Tlow to Thigh, PD ≤ 5.0 W,
unless otherwise noted) (Note
6)Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
19.2
20
20.8
Vdc
Output Voltage Variation
VO
19
21
Vdc
(23 Vdc ≤ VI ≤ 35 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
Line Regulation
Regline
10
50
mV
(TJ = 25°C, 23 Vdc ≤ VI ≤ 35 Vdc, IO = 200 mA)
Load Regulation
Regload
mV
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
30
400
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
10
200
Input Bias Current (TJ = 25°C)
IIB
3.2
6.5
mA
Quiescent Current Change
DIIB
mA
(23 Vdc ≤ VI ≤ 35 Vdc, IO = 200 mA)
0.8
(5.0 mA ≤ IO ≤ 350 mA)
0.5
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
110
mV
Ripple Rejection
RR
dB
(IO = 100 mA, f = 120 Hz, 24 V ≤ VI ≤ 34 V)
52
(IO = 300 mA, f = 120 Hz, 24 V ≤ VI ≤ 34 V, TJ = 25°C)
52
70
Dropout Voltage
VIVO
2.0
Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V)
IOS
350
mA
Average Temperature Coefficient of Output Voltage
DVO/DT
±0.5
mV/°C
(IO = 5.0 mA)
Peak Output Current
IO
700
mA
(TJ = 25°C)
MC78M24C/B ELECTRICAL CHARACTERISTICS (VI = 33 V, IO = 350 mA, TJ = Tlow to Thigh, PD ≤ 5.0 W,
unless otherwise noted) (Note
6)Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
23
24
25
Vdc
Output Voltage Variation
VO
22.8
25.2
Vdc
(27 Vdc ≤ VI ≤ 38 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
Line Regulation
Regline
10
50
mV
(TJ = 25°C, 27 Vdc ≤ VI ≤ 38 Vdc, IO = 200 mA)
Load Regulation
Regload
mV
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
30
480
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
10
240
Input Bias Current (TJ = 25°C)
IIB
3.2
7.0
mA
Quiescent Current Change
DIIB
mA
(27 Vdc ≤ VI ≤ 38 Vdc, IO = 200 mA)
0.8
(5.0 mA ≤ IO ≤ 350 mA)
0.5
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
170
mV
Ripple Rejection
RR
dB
(IO = 100 mA, f = 120 Hz, 28 V ≤ VI ≤ 38 V)
50
(IO = 300 mA, f = 120 Hz, 28 V ≤ VI ≤ 38 V, TJ = 25°C)
50
70
Dropout Voltage
VIVO
2.0
Vdc
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C)
IOS
350
mA
Average Temperature Coefficient of Output Voltage
DVO/DT
±0.5
mV/°C
(IO = 5.0 mA)
Peak Output Current
IO
700
mA
(TJ = 25°C)
6. Tlow =0°C for MC78MxxAC, C
Thigh = +125°C for MC78MxxAB, AC, B, C
= 40°C for MC78MxxAB, B