78DXXA-TN3-R datasheet(4/8 Pages) UTC

4 / 8 page

78DXXA

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 8

www.unisonic.com.tw

QW-R101-010,L

ABSOLUTE MAXIMUM RATINGS (Ta = 25°C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

VOUT =5~18V

Input Voltage

VOUT =20~24V

VIN

Output Current

IOUT

Power Dissipation (TC=25°C)

Junction Temperature

+150

°C

Operating Temperature

TOPR

-40 ~ +85

°C

Storage Temperature

TSTG

-55 ~ +150

°C

Notes: 1. Absolute maximum ratings are stress ratings only and functional device operation is not implied. The

device could be damaged beyond Absolute maximum ratings.

2. 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 are showed as electrical characteristics table

represents pulse test conditions with junction temperatures specified at the initiation of test.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

θJA

61.54

°C/W

Junction to Case

θJC

7.48

°C/W

ELECTRICAL CHARACTERISTICS

(TJ=25°C, CI =0.33uF, CO=0.1uF, PD≤15W, unless otherwise specified)

For 78D05A (VIN =10V, IOUT =0.5A)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX

UNIT

IOUT =5mA~1.0A

4.80

5.0

5.20

Output Voltage

VOUT

VIN =7.5~20V, IOUT =5mA~1.0A

4.75

5.25

IOUT =5mA~1.0A

Load Regulation

ΔVOUT

IOUT =0.25A~0.75A

VIN =7~25V

Line Regulation

ΔVOUT

VIN =7.5~20V, IOUT =1.0A

Quiescent Current

IOUT≤1.0A

8.0

VIN =7.5~20V

1.0

Quiescent Current Change

ΔIQ

IOUT =5mA~1.0A

0.5

Output Noise Voltage

10Hz≤f≤100kHz

μV

Temperature coefficient of VOUT

ΔVOUT/ΔTIOUT =5mA

-0.6

mV/

°C

Ripple Rejection

VIN =8~18V,f=120Hz

Peak Output Current

IPEAK

1.8

Short-Circuit Current

ISC

VIN =35V

250

Dropout Voltage

2.0

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