MC7818CT 查看數據表（PDF） - Vishay Semiconductors

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MC7818CT

3-Terminal Fixed Positive Voltage Regulators

Vishay Semiconductors 

MC78xxCT Series

Vishay Semiconductor

Electrical Characteristics – MC7812

Vin = 19V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted.

Parameter

Symbol

Conditions

Min.

Output Voltage

TJ = 25°C

11.76

Vout

14.5V ≤ Vin ≤ 27V,

5mA ≤ Iout ≤ 1.0A, PD ≤ 15W

11.66

Line Regulation

(TJ = 25°C)

14V ≤ Vin < 30V

–

∆REGline

15V ≤ Vin < 19V

–

Load Regulation

(TJ = 25°C)

10mA ≤ Iout < 1.5A

–

∆REGload

250mA ≤ Iout < 750mA

–

Quiescent Current

Iq

Iout = 0, TJ = 25°C

—

Quiescent Current Change

14.5V ≤ Vin ≤ 30V

—

∆Iq

5mA ≤ Iout ≤ 1.0A

—

Output Noise Voltage

Vn

10Hz ≤ f ≤ 100KHz,TJ= 25°C —

Ripple Rejection Ratio

RR

f = 120Hz,15V ≤ Vin ≤ 25V 55

Dropout Voltage

Vdrop

Iout = 1.0A, TJ = 25°C

—

Output Resistance

Rout

f = 1KHz

—

Output Short Circuit Current

Ios

TJ = 25°C

—

Peak Output Current

Io peak

TJ = 25°C

—

Temperature Coefficient of Output Voltage

∆Vout/∆TJ Iout = 5mA,0°C ≤TJ ≤ 125°C —

Typ.

12.0

—

10

3

12

4

4.3

—

—

75

71

2

18

350

1.5

–1

Max. Unit

12.24

V

12.34

240

mV

120

240

mV

120

8

mA

1

mA

0.5

—

µV

—

dB

—

V

—

mΩ

—

mA

—

A

— mV/°C

Electrical Characteristics – MC7815

Vin = 23V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted.

Parameter

Symbol

Conditions

Min. Typ.

Output Voltage

TJ = 25°C

14.7 15.0

Vout

17.5V ≤ Vin ≤ 30V,

5mA ≤ Iout ≤ 1.0A, PD ≤ 15W

14.55

—

Line Regulation

(TJ = 25°C)

∆REGline

17.5V ≤ Vin < 30V

13V ≤ Vin < 17V

–

11

–

3

Load Regulation

(TJ = 25°C)

10mA ≤ Iout < 1.5A

–

12

∆REGload

250mA ≤ Iout < 750mA

–

4

Quiescent Current

Iq

Iout = 0, TJ = 25°C

—

4.4

Quiescent Current Change

17.5V ≤ Vin ≤ 30V

—

—

∆Iq

5mA ≤ Iout ≤ 1.0A

—

—

Output Noise Voltage

Vn

10Hz ≤ f ≤ 100KHz,TJ= 25°C —

90

Ripple Rejection Ratio

RR

f = 120Hz, 18V ≤ Vin ≤ 28V 54

70

Dropout Voltage

Vdrop

Iout = 1.0A, TJ = 25°C

—

2

Output Resistance

Rout

f = 1KHz

—

19

Output Short Circuit Current

Ios

TJ = 25°C

—

230

Peak Output Current

Io peak

TJ = 25°C

—

1.5

Temperature Coefficient of Output Voltage

∆Vout/∆TJ Iout = 5mA,0°C ≤TJ ≤ 125°C —

–1

Max. Unit

15.3

V

15.45

300

mV

150

300

mV

150

8

mA

1

mA

0.5

—

µV

—

dB

—

V

—

mΩ

—

mA

—

A

— mV/°C

Document Number 74813

29-Nov-01

www.vishay.com

5

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