78RXXX

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 9

www.unisonic.com.tw

QW-R102-035.V



ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified. )

PARAMETER

SYMBOL

RATINGS

UNITS

Input Voltage

VIN

35

V

Disable Voltage

VDIS

35

V

Output Current

IOUT

1.0

A

Power Dissipation

SOT-223

PD

0.67

W

TO-220/TO-220B

TO-220F/TO-220F-4

1.2

W

TO-252/TO-252-5

0.8

W

Junction Temperature

TJ

+150

°C

Operating Temperature

TOPR

-40 ~ +125

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



THERMAL DATA

PARAMETER

SYMBOL

RATING

UNIT

Junction to Ambient

SOT-223

θJA

150

°C/W

TO-220/TO-220B

TO-220F/TO-220F-4

83

°C/W

TO-252/TO-252-5

125

°C/W

Junction to Case

SOT-223

θJC

15

°C/W

TO-220/TO-220B

TO-220F

5

°C/W

TO-220F-4

8

°C/W

TO-252/TO-252-5

12

°C/W



ELECTRICAL CHARACTERISTICS (IOUT =0.5A, TA = 25°C,unless otherwise specified)

For 78R1P5

(VIN=4.5V)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

VOUT

VIN=4.5V

1.45

1.5

1.55

V

Dropout Voltage

VD

IOUT = 1A

2.7

3.0

V

Load Regulation

VOUT

5mA < IOUT < 1A

0.1

2.0

%

Line Regulation

VOUT

4.5V < VIN < 8.5V

0.5

2.5

%

Quiescent Current

IQ

IOUT = 0 A

10

mA

Ripple Rejection

RR

(Note)

45

55

dB

Disable Voltage

High

VDISH

Output Active

2.0

V

Low

VDISL

Output Disabled

0.8

V

Disable Bias Current

High

IDISH

VDIS = 2.7V

0.02

mA

Low

IDISL

VDIS = 0.4V

0.4

mA

For 78R1P8

(VIN=4.8V)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

VOUT

VIN=4.8V

1.75

1.8

1.85

V

Dropout Voltage

VD

IOUT = 1A

2.4

2.7

V

Load Regulation

VOUT

5mA < IOUT < 1A

0.1

2.0

%

Line Regulation

VOUT

4.5V < VIN < 9V

0.5

2.5

%

Quiescent Current

IQ

IOUT = 0 A

10

mA

Ripple Rejection

RR

(Note)

45

55

dB

Disable Voltage

High

VDISH

Output Active

2.0

V

Low

VDISL

Output Disabled

0.8

V

Disable Bias Current

High

IDISH

VDIS = 2.7V

0.02

mA

Low

IDISL

VDIS = 0.4V

0.4

mA