NJM2842KH1-015 datasheet(10/11 Pages) NJRC

Part #	NJM2842KH1-015

Description	Very Low Output Low Dropout Regulator

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Manufacturer	NJRC [New Japan Radio]

Direct Link	http://www.jrc.co.jp/eng/index.html

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10 / 11 page

NJM2842

- 10 -

Ver.2011-02-18

0

Time:t(s)

468

10

-0.5

-12

2

-6

0-10

32

0

2-2

-4

4

0.5

-8

ON/OFF Transient Response Without Load

3.5

2.5

1.5

1

NJM2842_1.2V

Control Voltage

Output Voltage

@:Ta=25°C

VIN=2.2V

VBIAS=2.5V

Co=4.7uF

Io=0mA

0

Time:t(ms)

812

16

20

-0.5

-12

4

0-10

0.5

-8

1-6

2-2

-4

4

32

0

ON/OFF Transient Response

3.5

2.5

1.5

NJM2842_1.2V

Control Voltage

Output Voltage

@:Ta=25°C

VIN=2.2V

VBIAS=2.5V

Co=4.7uF

Io=30mA

0

NJM2842_1.2V

Load transient Response

1500

1.45

-1000

1.15

-1500

1.10

1.40

1000

1.35

500

1.30

0

1.25

-500

1.20

-2000

120

160

1.05

Time:t(µs)

-2500

200

40

80

Output Current

Output Voltage

@:Ta=25°C

VIN=2.2V

VBIAS=2.5V

Co=4.7uF

Io=500-

02

1.6

1.16

1

-2

0

-1

-3

Time:t(ms)

1.20

0.4

0.8

1.2

1.26

2

5

1.30

4

3

1.28

1.24

1.18

1.32

1.22

Line transient Response(Vbias Fixed)

NJM2842_1.2V

Input Voltage

Output Voltage

@:Ta=25°C

Vcont=VBIAS=2.5V

Co=4.7uF

Io=30mA

0

Line transient Response(Vin Fixed)

NJM2842_1.2V

1.28

1.24

1.18

1.32

1.22

6

1.30

5

4

1.26

3

1.20

0

-2

0.4

0.8

1.2

2

Time:t(ms)

1.6

1.16

2

-1

1

Input Voltage

Output Voltage

@:Ta=25°C

VIN=2.2V

Co=4.7uF

Io=30mA

NM2842_1.2V

Short Circuit Current vs.Temperature

0

500

1000

1500

2000

-50

0

50

100

150

Temperature Ta(°C)

@:Vin=2.2V

Vbias=Vcont=2.5V

Cin=4.7uF(Ceramic)

Cbias=0.1uF(Ceramic)

Co=4.7uF(Ceramic)

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NJM2842KH1-015 Datasheet(PDF) 10 Page - New Japan Radio

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