P4596

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

3 of 4

www.unisonic.com.tw

QW-R103-064.d



PARAMETER

SYMBOL

RATINGS

UNIT

VCC Pin Voltage

V

Feedback Pin Voltage

V

EN/SS Pin Voltage

V

OSC Pin Voltage

V

COMP Pin Voltage

V

VGATE Pin Voltage

V

Switch Pin Voltage

V

Power Dissipation

0.7

W

Operating Supply Voltage

8 ~ 40

V

Junction Temperature

-40 ~ +125

°C

Storage Temperature

-65 ~ +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.



T H ERM AL DAT A

PARAMETER

SYMBOL

RATING

UNIT

Junction to Ambient

143

°C/W

Junction to Case

45

°C/W

Note: Surface mounted on 1 in



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Feedback Voltage

0.800 0.815 0.830

V

Quiescent Current

3

6

mA

Feedback Bias Current

0.1

μA

Shutdown Supply Current

10

56

300

μA

Current Limit

3.5

A

Adjustable Frequency Range

R3=240K

Ω

200

KHz

Short Frequency

50

KHz

EN/SS Pin Shutdown Logic Input

Threshold Voltage

0.8

V

EN/SS Pull High Current

8

μA

80

180

m

Ω