LD2985

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 16

www.unisonic.com.tw

QW-R102-024.O



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

DC Input Voltage

ViN

16

V

INHIBIT Input Voltage

VINH

16

V

Output Current

IOUT

Internally limited

Power Dissipation

PD

Internally limited

Operating Junction Temperature (Note 2)

TOPR

-40 ~ +125

°C

Storage Temperature

TSTG

-40 ~ +150

°C

Notes: 1. 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.

2. This condition is only determined from design. It can't be 100% tested in mass production.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Case

θJC

81

°C/W



ELECTRICAL CHARACTERISTICS

(TJ=25°C, VI N=VOUT+1V, IOUT=1mA, VSHDN=2V, CI =1μF, CO=1μF, unless otherwise specified)

For VOUT=1.5V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Operating Input Voltage

VI(OPR)

16

V

Output Voltage

VOUT

VIN=2.5V

1.470

1.5

1.530

V

IOUT=1 ~ 150mA

1.455

1.545

V

Short Circuit Current

ISC

RL=0

600

mA

Line Regulation

△

VOUT

VIN=VOUT+1V ~ 16V, IOUT=1mA

30

mV

Dropout Voltage

VD

IOUT=0

1

3

mV

IOUT=1mA

7

10

mV

IOUT=10mA

40

60

mV

IOUT=50mA

120

150

mV

IOUT=150mA

280

350

mV

Quiescent Current

IQ

IOUT=0

80

100

μA

IOUT=1mA

100

150

μA

IOUT=10mA

280

330

μA

IOUT=50mA

1050

1300

μA

IOUT=150mA

2900

3300

μA

OFF MODE VINH<0.18V

1.5

μA

Supply Voltage Rejection

SVR

CBYP=0.01μF, CO=10μF, f=1KHz

45

dB

Control Input Logic Low

VIL

0.15

V

Control Input Logic High

VIH

2

V

Control Input Current

IINH

VSHDN=VIN

5

30

μA

VSHDN=0V

0

-1

μA

Output Noise Voltage

eN

B=300Hz ~ 50KHz,

CBYP=0.01μF, CO=10μF

30

μV