NCV7812BT datasheet(3/32 Pages) ONSEMI

Part #	NCV7812BT

Description	THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

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MC7800, MC7800A, NCV7805

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ELECTRICAL CHARACTERISTICS (Vin = 10 V, IO = 500 mA, TJ = Tlow to Thigh (Note 1), unless otherwise noted)

MC7805B, NCV7805

MC7805C

Characteristic

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage (TJ = 25°C)

VO

4.8

5.0

5.2

4.8

5.0

5.2

Vdc

Output Voltage (5.0 mA

≤ IO ≤ 1.0 A, PD ≤ 15 W)

7.0 Vdc

≤ Vin ≤ 20 Vdc

8.0 Vdc

≤ Vin ≤ 20 Vdc

VO

−

4.75

−

5.0

−

5.25

4.75

−

5.0

−

5.25

−

Vdc

Line Regulation (Note 4)

7.5 Vdc

≤ Vin ≤ 20 Vdc, 1.0 A

8.0 Vdc

≤ Vin ≤ 12 Vdc

Regline

−

5.0

1.3

100

50

−

0.5

0.8

20

10

mV

Load Regulation (Note 4)

5.0 mA

≤ IO ≤ 1.0 A

5.0 mA

≤ IO ≤ 1.5 A (TA = 25°C)

Regload

−

1.3

0.15

100

50

−

1.3

25

mV

Quiescent Current

IB

−

3.2

8.0

−

3.2

6.5

mA

Quiescent Current Change

7.0 Vdc

≤ Vin ≤ 25 Vdc

5.0 mA

≤ IO ≤ 1.0 A (TA = 25°C)

DIB

−

0.5

−

0.3

0.08

1.0

0.8

mA

Ripple Rejection

8.0 Vdc

≤ Vin ≤ 18 Vdc, f = 120 Hz

RR

−

68

−

62

83

−

dB

Dropout Voltage (IO = 1.0 A, TJ = 25°C)

VI − VO

−

2.0

−

2.0

−

Vdc

Output Noise Voltage (TA = 25°C)

10 Hz

≤ f ≤ 100 kHz

Vn

−

10

−

10

−

mV/VO

Output Resistance f = 1.0 kHz

rO

−

0.9

−

0.9

−

m

W

Short Circuit Current Limit (TA = 25°C)

Vin = 35 Vdc

ISC

−

0.2

−

0.6

−

A

Peak Output Current (TJ = 25°C)

Imax

−

2.2

−

2.2

−

A

Average Temperature Coefficient of Output Voltage

TCVO

−

−0.3

−

−0.3

−

mV/

°C

1. Tlow =0°C for MC78XXAC, C, Thigh = +125°C for MC78XXAC, NCV7805

=

*40°C for MC78XXB, MC78XXAB, NCV7805

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.

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