UM5237

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 6

www.unisonic.com.tw

QW-R101-040.d



ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise noted)

PARAMETER

SYMBOL

RATINGS

UNIT

Input Voltage

VIN

30

V

Drive Current

ID

30

mA

Input/Output Voltage Difference

VIN -VOUT

28

V

Internal Power Dissipation

PD

500

mW

Operating Temperature

TOPR

-20 ~ +75

°C

Storage Temperature

TSTG

-55 ~ +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.



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage Range

VIN

3.5 ~ 30

V

Output Voltage Range

VOUT

1.5 ~ 25

V



ELECTRICAL CHARACTERISTICS

(Test circuit (a) is used with TA=25°C, VI=15V, VO=12V, IL=200mA, CREF=1μA, R1=4.3KΩ)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

Input Voltage

VIN

Between Pin 1 and Pin 2

3.5

30

V

Output Voltage

VOUT

R2≈0.82~108KΩ

1.5

28

V

Minimum Input/Output Voltage

Difference

VIN -VOUT

0.2

V

Reference Voltage

VREF

Between Pin 2 and Pin 3

1.2

1.26

1.32

V

Input Voltage Regulation

Reg-in

VI=15~20V

0.02

0.1

%/V

Loading Voltage Regulation

Reg-L

IL=10~200mA

0.02

0.1

%

Bias Current

IB

IL=0 (disregarding the current in

resistors R1, R2)

1.7

3.0

mA

Output Voltage Thermal Coefficient

TCVO

TA=0~75°C

0.02

%/°C

Ripple Rejection

RR

f=120Hz

measured with circuit (b)

68

dB

Output Noise Voltage

VNO

f=20Hz~100KHZ

25

μVrms