IRU1205 datasheet(2/6 Pages) IRF | 300mA ULTRA LOW DROPOUT POSITIVE ADJUSTABLE AND FIXED REGULATORS

2 page

Rev. 2.3

07/16/02

IRU1205

IRU1205-18 / IRU1205-25 / IRU1205-28

IRU1205-30 / IRU1205-33 / IRU1205-36

www.irf.com

ABSOLUTE MAXIMUM RATINGS

Input Voltage (VIN) ..................................................... 10V

Enable Input Voltage ................................................. 10V

Storage Temperature Range ....................................... -65°C To 150°C

Operating Junction Temperature Range ......................

0°C To 150°C

PACKAGE INFORMATION

5-PIN SOT-23 (L5)

ELECTRICAL SPECIFICATIONS

Reference Voltage

(See Table 1 for typical values)

Line Regulation

Load Regulation (Note 1)

Dropout Voltage (Note 2)

Ground Current (Note 3)

Ground Current-SD Activated

Current Limit

Thermal Regulation

Adjust Pin Current

Enable Pin Input LO Voltage

Enable Pin Input HI Voltage

Enable Pin Input LO Current

Enable Pin Input HI Current

uJA=2568C/W

Unless otherwise specified, these specifications apply over CIN=Co=22

mF, Io=100mA, VIN(MIN)=2.5V(Adjustable

devices) VIN=Vo + 1V(for fixed voltage devices), VOUT=VFB(for adjustable version only), CBYP=470pF(for AT18, AT25,

AT28, AT30, AT33 and AT36), VENB=2V and TA=25

8C. Typical values refer to TA=258C. Low duty cycle pulse testing

is used which keeps junction and case temperatures equal to the ambient temperature.

Adj

Gnd VIN

VOUT

AT00

Adjustable

Fixed

CBYP

Gnd VIN

VOUT

ATxx

PARAMETER

SYM

TEST CONDITION

MIN

TYP

MAX UNITS

(Note 4)

Vo + 1V<VIN<10V

1mA<Io<100mA

100mA<Io<300mA

Io=100

mA (Note 4)

Io=50mA

Io=50mA (Note 4)

Io=150mA

Io=150mA (Note 4)

Io=300mA

Io=300mA (Note 4)

VEN=2V, Io=100

Io=100

mA (Note 4)

Io=50mA

Io=50mA (Note 4)

Io=150mA

Io=150mA (Note 4)

Io=300mA

Io=300mA (Note 4)

VEN=0V to 0.8V or Open

Vo=0V

VIN=10V, Io=150mA, 10ms Pulse

VIN=2.5V, Vo=VADJ

Regulator OFF

Regulator ON

VEN(L)=0V to 0.8V

VEN(H)=2V to VIN

-1

-2

320

0.005

0.8

0.1

100

170

204

270

324

120

240

420

540

2200

2900

7200

9300

420

0.05

0.1

0.01

110

140

220

260

350

400

160

600

2900

9500

0.8

%/V

%/W

DVI

DVL

DVI(O)

IQ(SD)

ICL

DVP

IADJ

VEN(L)

VEN(H)

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