UC2306

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 12

www.unisonic.com.tw

QW-R103-029.C



MARKING INFORMATION

PACKAGE

VOLTAGE CODE

MARKING

DIP-8

SOP-8

33: 3. 3V

50: 5. 0V

AD: ADJ

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PIN CONFIGURATION

1

2

3

4

8

7

6

5

LBI

SW

LBO

GND

SHDN

FB(SENSE)

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PIN DESCRIPTION

PIN No.

SYMBOL

DESCRIPTION

1

LBI

Input of Low Battery Detector. Detector output is low when voltage on this pin is less

than 1.17V.

2

LBO

Output of Low Battery Detector.

3

Input Voltage Supply.

4

SW

The Collector Pin of Power NPN.

5

GND

Ground.

6

Pin For Current Limit Set. Connected to nothing for 1A peak switch current; and

connect to a resistor to ground will lower peak current

7

SHDN

Input of Shutdown.Held low, then switching regulator is turned off. This Pin should not

8

FB/SENSE

This pin connects to the resistor divider. In shutdown mode,the divider is disconnected

from it.