IP1531 datasheet(5/13 Pages) INTERPION

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December. 2002 (Rev.0)

www.interpionsemi.com

IP1531

TRIPLE OUTPUT VOLTAGE LDO REGULATOR

ELECTRICAL CHARACTERISTICS

( Vin= 5V, Co=10uF, Ta = 25OC, unless otherwise specified.)

Parameter

Symbol

Condition

Min.

Typ.

Max.

Units

LDO REGULATOR 3 (ADJUSTABLE TYPE)

Output Voltage

Vout3

Io=10mA

Vref

Vin-

1.5V

Line Regulation

dVline3

Vin=4.5~6V,Io=10mA

0.01

0.4

Load Regulation

dVload3

Ta=25OC

Vin=5V, 10mA < Io < 400mA

0.4

0.8

Dropout voltage

Vdrop3

Io=400mA

1.1

1.3

Ripple rejection

RR3

F=120Hz, Co=10uF Tantalum

Vin-Vout=2V, Io=200mA

Current limit *Note

Ilimit3

Vin-Vout=3.0V

400

Adjust pin current

Iadj 3

0.1

Minimum load current

Ilmin3

Temperature stability

Temp3

0.5

On voltage

Von

Vout=Enabled

0.8

Off voltage

Voff

Vout=Disabled

2.0

ON/OFF CONTROL PART

* Note

Don’t exceed following current limit.

( Iout1 : 500 mA, Iout2 : 400 mA, Iout3 : 400 mA )

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