MC7906CT datasheet(4/8 Pages) VISHAY

Part #	MC7906CT

Description	3-Terminal Fixed Negative Voltage Regulators

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Manufacturer	VISHAY [Vishay Siliconix]

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Electrical Characteristics – MC7909

Vin = –15V, Iout = 500mA, Cin = 2

µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted.

Parameter

Symbol

Test

Conditions

Min.

Typ.

Max.

Unit

Circuit

TJ = 25°C

–8.82

–9.0

–9.18

V

Output Voltage

Vo

1

Vin = –11.5 to –24V,

–8.73

—–9.27

Io = 5mA to 1A

Line Regulation

REGline

1

Vin = –11.5 to –27V

—

7

180

mV

(TJ = 25°C)

Vin = –12 to –16V

—

290

Load Regulation

REGload

1

Io = 5mA to 1.5A

—

12

180

mV

(TJ = 25°C)

Io = 250mA to 750mA

—

490

Quiescent Current

Iq

2TJ = 25°C

—

2.2

4.5

mA

Quiescent Current Change

∆Iq

2

Vin = –11.5 to –27V

——

1

mA

(TJ = 25°C)

Io = 5mA to 1A

——

0.5

Output Noise Voltage (TJ = 25°C)

Vn

1

f = 10Hz to 100KHz

—

58

—

µV

Ripple Rejection Ratio

RR

3

Vin = –12 to –22V

56

71

—

dB

Io = 100mA, f = 120Hz

Dropout Voltage

Vdrop

Io = 1.0A, TJ = 25°C

—

1.1

—

V

Peak Output Current

Io-peak

1TJ = 25°C

—

2.1

—

A

Temp. Coefficient of Output Voltage

∆Vo/∆TA

1

Io = 5mA, TJ = 0 to125°C

—

0.6

—

mV/°C

Electrical Characteristics – MC7912

Vin = –19V, Iout = 500mA, Cin = 2

µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted.

Parameter

Symbol

Test

Conditions

Min.

Typ.

Max.

Unit

Circuit

TJ = 25°C

–11.76

–12.0

–12.24

V

Output Voltage

Vo

1

Vin = –14.5 to –27V,

–11.64

—–12.36

Io = 5mA to 1A

Line Regulation

REGline

1

Vin = –14.5 to –30V

—

10

240

mV

(TJ = 25°C)

Vin = –15 to –19V

—

3

120

Load Regulation

REGload

1

Io = 5mA to 1.5A

—

12

240

mV

(TJ = 25°C)

Io = 250mA to 750mA

—

4

120

Quiescent Current

Iq

2TJ = 25°C

—

2.5

5

mA

Quiescent Current Change

∆Iq

2

Vin = –14.5 to –30V

——

1

mA

(TJ = 25°C)

Io = 5mA to 1A

——

0.5

Output Noise Voltage (TJ = 25°C)

Vn

1

f = 10Hz to 100KHz

—

75

—

µV

Ripple Rejection Ratio

RR

3

Vin = –15 to –25V

55

70

—

dB

Io = 100mA, f = 120Hz

Dropout Voltage

Vdrop

Io = 1.0A, TJ = 25°C

—

1.1

—

V

Peak Output Current

Io-peak

1TJ = 25°C

—

2.1

—

A

Temp. Coefficient of Output Voltage

∆Vo/∆TA

1

Io = 5mA, TJ = 0 to125°C

—–0.8

—

mV/°C

MC79xxCT Series

Vishay

formerly General Semiconductor

www.vishay.com

Document Number 74814

4

11-Jun-02

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