MCT7800
ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MCT7805B
MCT7805C
Characteristics
Symbol Min
Typ
Max
Min
Typ
Max
Output Voltage (TJ = +25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PO ≤15 W)
7.0 Vdc ≤ Vin ≤ 20 Vdc
8.0 Vdc ≤ Vin ≤ 20 Vdc
Line Regulation, TJ = +25°C (Note 2)
7.0 Vdc ≤ Vin ≤ 25 Vdc
8.0 Vdc ≤ Vin ≤ 12 Vdc
Load Regulation, TJ = +25°C (Note 2)
5.0 mA ≤ Vin ≤ 1.5 A
250 mA ≤ Vin ≤ 750 mA
Quiescent Current (TJ = +25°C)
Quiescent Current Change
7.0 Vdc ≤ Vin ≤ 25 Vdc
8.0 Vdc ≤ Vin ≤ 25 Vdc
5.0 mA ≤ IO ≤ 1.0 A
Ripple Rejection
8.0 Vdc ≤ Vin ≤ 18 Vdc, f = 120 Hz
VO
4.8
5.0
5.2
4.8
5.0
5.2
VO
—
—
—
4.75
5.0
5.25
4.75
5.0
5.25
—
—
—
Regline
—
7.0
100
—
7.0
100
—
2.0
50
—
2.0
50
Regload
—
2.0
100
—
2.0
100
—
1.5
50
—
1.5
50
IB
—
5.5
8.0
—
5.5
8.0
∆IB
—
—
—
—
—
1.3
—
—
1.3
—
—
—
—
—
0.5
—
—
0.5
RR
—
65
—
—
65
—
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
Output Noise Voltage (TA = +25°C)
10 Hz ≤ f ≤ 100 kHz
VI – VO
—
2.0
—
—
2.0
—
Vn
—
10
—
—
10
—
Output Resistance f = 1.0 kHz
Short Circuit Current Limit (TA = +25°C)
Vin = 35 Vdc
rO
—
1.3
—
—
1.3
—
ISC
—
0.2
—
—
0.2
—
Peak Output Current (TJ = +25°C)
Average Temperature Coefficient of Output Voltage
Imax
—
2.2
—
—
2.2
—
TCVO
—
0.5
—
—
0.5
—
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
mΩ
A
A
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 11 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MCT7806B
MCT7806C
Characteristics
Symbol Min
Typ
Max
Min
Typ
Max Unit
Output Voltage (TJ = +25°C)
VO
5.75
6.0
6.25 5.75
6.0
6.25
Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PO ≤15 W)
8.0 Vdc ≤ Vin ≤ 21 Vdc
9.0 Vdc ≤ Vin ≤ 21 Vdc
VO
Vdc
—
—
—
5.7
6.0
6.3
5.7
6.0
6.3
—
—
—
Line Regulation, TJ = +25°C (Note 2)
8.0 Vdc ≤ Vin ≤ 25 Vdc
9.0 Vdc ≤ Vin ≤ 13 Vdc
Regline
mV
—
7.0
120
—
7.0
120
—
2.0
60
—
2.0
60
Load Regulation, TJ = +25°C (Note 2)
5.0 mA ≤ Vin ≤ 1.5 A
250 mA ≤ Vin ≤ 750 mA
Regload
mV
—
2.0
120
—
2.0
120
—
1.5
60
—
1.5
60
Quiescent Current (TJ = +25°C)
IB
—
5.5
8.0
—
5.5
8.0
mA
Quiescent Current Change
8.0 Vdc ≤ Vin ≤ 25 Vdc
9.0 Vdc ≤ Vin ≤ 25 Vdc
5.0 mA ≤ IO ≤ 1.0 A
∆IB
mA
—
—
—
—
—
1.3
—
—
1.3
—
—
—
—
—
0.5
—
—
0.5
Ripple Rejection
9.0 Vdc ≤ Vin ≤ 19 Vdc, f = 120 Hz
RR
dB
—
65
—
—
65
—
NOTES:
1. Tlow = 0°C for MCT78XXC
= – 40°C for MCT78XXB
Thigh = +125°C for MCT78XXB, C. When the junction temperature exceeds +125°C, internal current limiting
will reduce the output current to less than 1.0 A at a VI–VO of 15 V or
greater. The MC7800 die will supply more current under the same conditions.
2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
Pulse testing with low duty cycle is used.
MOTOROLA
MCT7800
3