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NJM2890R3333

2ch LOW DROPOUT VOLTAGE REGULATOR

Japan Radio Corporation  

ELECTRICAL CHARACTERISTICS

NJM2890_3.0V

Ripple Re je ction vs. Output Curre nt(Vo=3.0V)

80

f=1kHz

70

60

50

@:Ta=25oC

VIN=4V

40

ein=200mVrms

Co=1.0µF(Ceramic)

Cp=0.01µF

30

f=10kHz

0.001

0.01

0.1

1

10

100

Output Current : Io(mA)

0.3

0.25

0.2

0.15

0.1

0.05

0

-50

NJM2890_3.0V

Dropout Vol tage vs. Temperature

@:VIN=4V

I o= 60 mA

Co=1.0µF(Ceramic)

Cp=0.01µF

0

50

100

150

Temperature : Ta (oC)

NJ M2 89 0_3. 0V

3.1

Output Voltage v.s Temperature

3.05

3

2.95

2.9

-50

VIN=4V

Io=30mA

Co=1.0µA

Cp=0.01µA

0

50

100

150

Temperature Ta (oC)

NJM2890

NJ M 2 89 0 _3 .0 V

Equivalent Serise Re sistance vs. Output Current

100

@:Ta=25oC

VI N=4V

Co=1.0µF(Ceramic)

Cp=0.01µF

10

Oscillation Free

1

0.1

0.02

1µ

10µ

100µ

1m

10m

Output Curre nt : Io(mA)

100m

N JM2 89 0_3. 0V

Control Voltage vs. Temperature

2

1.5

1

0.5

@:V IN=4 V

Output is Open.

Co=1.0µF(Ceramic)

Cp=0.01µF

0

-50

0

50

100

150

Temperature : Ta (oC)

NJ M2 89 0_3. 0V

Quiescent Current v.s. Temperature

300

@:VIN=4V

Output is open.

250

Co=1.0µF(Ceramic)

Cp=0.01µF

including Icont

200

150

100

50

0

-50

0

50

100

150

Temperature : Ta (oC)

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