MC7912CT View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

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MC7912CT

3-Terminal 1A Negative Voltage Regulat

Fairchild Semiconductor 

MC79XX/MC79XXA/LM79XX

Electrical Characteristics (MC7912A) (Continued)

(VI = -19V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.)

Parameter

Output Voltage

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current

Quiescent Current Change

Temperature Coefficient of VD

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short Circuit Current

Peak Current

Symbol

VO

∆VO

∆VO

IQ

∆IQ

∆Vo/∆T

VN

RR

VD

ISC

IPK

Conditions

Min.

TJ = +25°C

-11.75

IO = 5mA to 1A, PO ≤ 15W

VI = -15.5V to -27V

-11.5

TJ = +25°C

VI = -14.5V to -27V

Io = 1A

-

VI = -16V to -22V

Io = 1A

-

VI = -14.8V to -30V

-

VI = -16V to -22V, Io = 1A

-

TJ = +25°C

IO = 5mA to 1.5A

-

TJ = +25°C

IO = 250mA to 750mA

-

TJ = +25°C

-

IO = 5mA to 1A

-

VI = -15V to -30V

-

IO = 5mA

-

f = 10Hz to 100kHz

TA = +25°C

-

f = 120Hz

∆VI = 10V

54

TJ = +25°C

IO = 1A

-

TJ = +25°C, VI = -35V

-

TJ = +25°C

-

Typ.

-12

-12

12

6

12

12

12

4

3

0.05

0.1

-0.8

200

60

2

300

2.2

Max. Unit

-12.25

V

-12.5

120

60 mV

120

120

150

mV

75

6 mA

0.5

mA

1

- mV/°C

-

µV

-

dB

-

V

- mA

-

A

Note:

1. 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 is used.

12

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