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MC78M00 Datasheet, PDF (6/16 Pages) Motorola, Inc – THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS
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MC78M00, MC78M00A Series
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
Output Voltage (TJ = 25°C)
Output Voltage Variation
(23 Vdc ≤ VI ≤ 35 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
Line Regulation
(TJ = 25°C, 23 Vdc ≤ VI ≤ 35 Vdc, IO = 200 mA)
Load Regulation
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
Input Bias Current (TJ = 25°C)
Quiescent Current Change
(23 Vdc ≤ VI ≤ 35 Vdc, IO = 200 mA)
(5.0 mA ≤ IO ≤ 350 mA)
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Ripple Rejection
(IO = 100 mA, f = 120 Hz, 24 V ≤ VI ≤ 34 V)
(IO = 300 mA, f = 120 Hz, 24 V ≤ VI ≤ 34 V, TJ = 25°C)
Dropout Voltage
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V)
Average Temperature Coefficient of Output Voltage
(IO = 5.0 mA)
Peak Output Current
(TJ = 25°C)
VO
VO
Regline
Regload
IIB
DIIB
Vn
RR
VI−VO
IOS
DVO/DT
IO
19.2
19
−
−
−
−
−
−
−
52
52
−
−
−
−
20
−
10
30
10
3.2
−
−
110
−
70
2.0
50
±0.5
700
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
Output Voltage (TJ = 25°C)
VO
23
24
Output Voltage Variation
(27 Vdc ≤ VI ≤ 38 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
VO
22.8
−
Line Regulation
(TJ = 25°C, 27 Vdc ≤ VI ≤ 38 Vdc, IO = 200 mA)
Regline
−
10
Load Regulation
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
Regload
−
30
−
10
Input Bias Current (TJ = 25°C)
IIB
−
3.2
Quiescent Current Change
(27 Vdc ≤ VI ≤ 38 Vdc, IO = 200 mA)
(5.0 mA ≤ IO ≤ 350 mA)
DIIB
−
−
−
−
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
−
170
Ripple Rejection
RR
(IO = 100 mA, f = 120 Hz, 28 V ≤ VI ≤ 38 V)
(IO = 300 mA, f = 120 Hz, 28 V ≤ VI ≤ 38 V, TJ = 25°C)
50
−
50
70
Dropout Voltage
(TJ = 25°C)
VI−VO
−
2.0
Short Circuit Current Limit (TJ = 25°C)
IOS
−
50
Average Temperature Coefficient of Output Voltage
(IO = 5.0 mA)
DVO/DT
−
±0.5
Peak Output Current
(TJ = 25°C)
IO
−
700
6. Tlow = 0°C for MC78MxxAC, C
= −40°C for MC78MxxAB, B
Thigh = +125°C for MC78MxxAB, AC, B, C
Max Unit
20.8
Vdc
21
Vdc
50
mV
mV
400
200
6.5
mA
mA
0.8
0.5
−
mV
dB
−
−
−
Vdc
−
mA
−
mV/°C
−
mA
Max Unit
25
Vdc
25.2
Vdc
50
mV
mV
480
240
7.0
mA
mA
0.8
0.5
−
mV
dB
−
−
−
Vdc
−
mA
−
mV/°C
−
mA
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