CJ7908 datasheet(1/3 Pages) JIANGSU

Part #	CJ7908

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 Plastic-Encapsulate Voltage Regulators

CJ7908 Three-terminal negative voltage regulator

FEATURES

Maximum output current IOM: 1.5 A

Output voltage Vo: - 8 V

Continuous total dissipation

PD: 1.25W (Ta = 25

℃)

12.5 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

10

℃/W

Operating Junction Temperature Range

TOPR

0

~+150

℃

Storage Temperature Range

TSTG

-

55~+150

℃

ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JINCTION TEMPERATURE(Vi=-14V,Io=500mA,Ci=2.2μF, Co=1μF, unless otherwise specified)

Parameter

Symbol

Test conditions

Min

Typ

Max

Unit

25

℃

-7.7

-8

-8.3

V

Output

Voltage

Vo

-10.5V≤Vi≤-23V,Io=5mA-1A,

P≤15W

0-125

℃

-7.6

-8

-8.4

V

Io=5mA-1.5A

25

℃

15

160

mV

Load Regulation

∆Vo

Io=250mA-750mA

25

℃

5

80

mV

-10.5V≤Vi≤-25V

25

℃

12.5

160

mV

Line

Regulation

∆Vo

-11V≤Vi≤-17V

25

℃

4

80

mV

Quiescent Current

Iq

25

℃

1.5

2

mA

∆Iq

-10.5V≤Vi≤-25V

0-125

℃

1

mA

Quiescent Current Change

∆Iq

5mA≤IO≤1A

0-125

℃

0.5

mA

Output Noise Voltage

VN

10Hz≤f≤100KHz

25

℃

200

μV

Output

Voltage drift

Vo/

△△T

IO=5mA

0-125

℃

-0.6

mV/

℃

Ripple Rejection

RR

-11.5V≤Vi≤-21.5V,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

CJ7908

TO-252-2L

1 GND

2. IN

3. OUT

www.cj-elec.com

1

C,Mar,2016

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CJ7908 Datasheet(PDF) 1 Page - Jiangsu Changjiang Electronics Technology Co., Ltd

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