NJU7241 datasheet(2/8 Pages) NJRC

Part #	NJU7241

Description	High-Precision LDO 60mA C-MOS Voltage Regulator with Standby

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Manufacturer	NJRC [New Japan Radio]

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

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NJU7241 Series

s

s EQUIVALENT CIRCUIT

s

s ABSOLUTE MAXIMUM RATINGS

(Ta=25

°C)

Parameter

Symbol

Ratings

Unit

Input Voltage

VIN

15

V

Input Voltage

VSTB

GND-0.3

∼ V

IN+0.3

V

Output Voltage

VOUT

GND-0.3

∼ V

IN+0.3

V

Output Current

IOUT

120

mA

Power Dissipation

PD

200

mW

Operating Temperature

Topr

-40

∼ +85

°C

Storage Temperature

Tstg

-40

∼ +125

°C

s

s ELECTRICAL CHARACTERISTICS

•V

O=1.8V

(CIN=0.1

µF, C

O=10

µF, Ta=25°C)

Parameter

Symbol

Condition

MIN.

TYP.

MAX.

Unit

Output Voltage

VO

VIN=2.8V, IO=30mA

1.764

1.800

1.836

V

Dropout Voltage

∆V

IO

IO=15mA

0.2

0.3

V

Input Voltage

VIN

14

V

Operating Current

IDD1

VIN=2.8V, VSTB=VIN, No Load

20

40

µA

Standby Current

IDD2

VIN=2.8V, VSTB=GND

0.1

1.0

µA

Input Current

ISTB

VIN=2.8V, VSTB=VIN

0.56

1.12

µA

Load Regulation

∆V

O/

∆I

O

VIN=2.8V, 1mA≦IO≦60mA

200

300

mV

Line Regulation

∆V

O/

∆V

IN

VIN=2.8V

∼12V

0.10

%/V

Ripple Rejection

RR

VIN=2.8V, ein=0.5Vp-p, 1kHz

55

dB

H Level Input Voltage

VSTBH

1.5

VIN

V

L Level Input Voltage

VSTBL

0

0.25

V

•V

O=2.4V

(CIN=0.1

µF, C

O=10

µF, Ta=25°C)

Parameter

Symbol

Condition

MIN.

TYP.

MAX.

Unit

Output Voltage

VO

VIN=3.4V, IO=30mA

2.352

2.400

2.448

V

Dropout Voltage

∆V

IO

IO=30mA

0.2

0.3

V

Input Voltage

VIN

14

V

Operating Current

IDD1

VIN=3.4V, VSTB=VIN, No Load

20

40

µA

Standby Current

IDD2

VIN=3.4V, VSTB=GND

0.1

1.0

µA

Input Current

ISTB

VIN=3.4V, VSTB=VIN

0.9

1.8

µA

Load Regulation

∆V

O/

∆I

O

VIN=3.4V, 1mA≦IO≦60mA

200

300

mV

Line Regulation

∆V

O/

∆V

IN

VIN=3.4V

∼12V

0.10

%/V

Ripple Rejection

RR

VIN=3.4V, ein=0.5Vp-p, 1kHz

55

dB

H Level Input Voltage

VSTBH

1.5

VIN

V

L Level Input Voltage

VSTBL

0

0.25

V

1

23

VIN

VOUT

GND

+

-

VREF

5

STB

Short Current

Protection Circuit

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