CJ7912 datasheet(1/3 Pages) JIANGSU

Part #	CJ7912

Description	Three-terminal negative voltage regulator

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Manufacturer	JIANGSU [Jiangsu Changjiang Electronics Technology Co., Ltd]

Direct Link	http://www.cj-elec.com/en/

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1

Co

1μF

JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD

TO-252-2L Encapsulate Voltage Regulators

CJ7912 Three-terminal negative voltage regulator

FEATURES

Maximum output current IOM: 1.5 A

Output voltage Vo: - 12 V

Continuous total dissipation

PD: 1.25 W (Ta = 25

℃ )

10 W (TC= 25

℃ )

ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)

Parameter

Symbol

Value

Unit

Input Voltage

Vi

-35

V

Thermal

Resistance from Junction to Ambient

RθJA

100

℃/W

Thermal

Resistance from Junction to Case

RθJC

12.5

℃/W

Operating Junction Temperature Range

TOPR

0

~+150

℃

Storage Temperature Range

TSTG

-

55~+150

℃

ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE (Vi=-19V,Io=500mA, Ci=2.2μF,Co=1μF, unless otherwise specified )

Parameter

Symbol

Test conditions

Min

Typ

Max

Unit

25

℃

-11.5

-12

-12.5

V

Output

Voltage

Vo

-14.5V≤Vi≤-27V, Io=5mA-1A

P≤15W

0-125

℃

-11.4

-12

-12.6

V

Io=5mA-1.5A

25

℃

15

200

mV

Load Regulation

∆Vo

Io=250mA-750mA

25

℃

5

75

mV

-14.5V≤Vi≤-30V

25

℃

5

80

mV

Line

Regulation

∆Vo

-16V≤Vi≤-22V

25

℃

3

30

mV

Quiescent Current

Iq

25

℃

2

3

mA

∆Iq

-14.5V≤Vi≤-30V

0-125

℃

0.5

mA

Quiescent Current Change

∆Iq

5mA≤I O≤1A

0-125

℃

0.5

mA

Output Noise Voltage

VN

10Hz≤f≤100KHz

25

℃

300

μV

Output

Voltage Drift

Vo/

△△T

IO=5mA

0-125

℃

-0.8

mV/℃

Ripple Rejection

RR

-15V≤Vi≤-25V,f=120Hz

0-125

℃

54

60

dB

Dropout Voltage

Vd

Io=1A

25

℃

1.1

V

Peak Current

Ipk

25

℃

2.1

A

TYPICAL APPLICATION

Vi

2

3

Vo

UTC

Ci

2.2μF

CJ7912

TO-252-2L

1 GND

2. IN

3.OUT

www.cj-elec.com

1

D,Mar,2016

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CJ7912 Datasheet(PDF) 1 Page - Jiangsu Changjiang Electronics Technology Co., Ltd

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