UZ1085

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 7

www.unisonic.com.tw

QW-R102-013.J



ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

VIN

18

V

Junction Temperature

TJ

+125

°C

Operating Temperature

TOPR

-40 ~ +125

°C

Storage Temperature

TSTG

-40 ~ +150

°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

RATINGS

UNIT

Junction to Ambient

TO-252

θJA

118

°C/W

TO-220/TO-220F

TO-263/ TO-263-3

62

Junction to Case

TO-252

θJC

12

°C/W

TO-220/TO-263

TO-263-3

4

TO-220F

7.6



ELECTRICAL CHARACTERISTICS (COUT=22μF, TA=25°C, unless otherwise specified.)

For UZ1085-ADJ (Adjustable)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Voltage

VREF

1.5V≤(VIN - VOUT) ≤8.25V,10mA≤IOUT≤3A

1.225 1.25

1.275

V

Line Regulation

△

VOUT

(VOUT +1.5V) ≤VIN≤12V, IOUT=10mA

0.005

0.2

%

Load Regulation

△

VOUT

(VIN - VOUT)=3V, 10mA≤IOUT≤3A

0.05

0.5

%

Dropout Voltage

VD

△

VREF%=1%, lOUT=3A

1.30

1.40

V

Current Limit

ILIMIT

(VIN-VOUT)=2V

3.1

4

A

Adjust Pin Current

IADJ

35

120

μA

Adjust Pin Current Change

△

IADJ

1.5V≤ (VIN - VOUT) ≤12V, 10mA≤IOUT≤3A

0.2

5

μA

Minimum Load Current

IO(MIN)

1.5V≤ (VIN-VOUT) ≤12V

10

mA

Quiescent Current

IQ

VIN=12V

4

13

mA

Ripple Rejection

RR

f=120Hz,Tantalum,(VIN–VOUT)=3V IOUT=3A

60

72

dB

Thermal Regulation

TA=25°C,30ms pulse

0.004

0.02

%/W

Temperature Stability

VOUT

0.5

%

Long-Term Stability

VOUT

TA=125°C, 1000hr

0.03

1.0

%

Output Noise(% of VOUT)

eN

TA=25°C,10Hz≤f≤10kHz

0.003

%

Thermal Shutdown

150

°C