78TXXAL-TQ2-D-R datasheet(7/8 Pages) UTC

7 / 8 page

78TXXA

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

7 of 8

www.unisonic.com.tw

QW-R101-011,F

ELECTRICAL CHARACTERISTICS(Cont.)

FOR 78T24A (VIN=33V, IOUT=0.5A, TJ= 0°C - 125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified)(Note 1)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TJ=25°C, IOUT=5mA-1.0A

23.04

24.0

24.96

Output Voltage

VOUT

VIN=27V~38V, IOUT=5mA-1.0A, PD

15W

≦

22.80

25.20

TJ=25°C, IOUT=5mA-1.0A

240

Load Regulation

∆V

OUT

TJ=25°C, IOUT=0.25A-0.75A

120

VIN=27V~38V, TJ=25°C

240

Line regulation

∆V

OUT

VIN=27V~38V, TJ=25°C, IOUT=1.0A

240

Quiescent Current

TJ=25°C, IOUT

1.0A

≦

8.0

VIN=28V~38V

1.0

Quiescent Current Change

∆I

IOUT=5mA-1.0A

0.5

Output Noise Voltage

10Hz

100kHz

≦≦

170

µV

Temperature coefficient of Vo

∆Vo/∆T I

OUT=5mA

-2.8

mV/

°C

Ripple Rejection

VIN=28V-38V, f=120Hz, TJ=25°C

Peak Output Current

IPEAK

TJ=25°C

1.8

Short-Circuit Current

ISC

VIN=35V, TJ=25°C

250

Dropout Voltage

TJ=25°C

2.0

Note 1: The Maximum steady state usable output current are dependent on input voltage, heat sinking, lead length

of the package and copper pattern of PCB. The data above represents pulse test conditions with junction

temperatures specified at the initiation of test.

Note 2: Power dissipation<0.5W

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