Preliminary Datasheet

LP3302

LP3302B6F-00

Version 1.0 Datasheet

May.-2013

www.lowpowersemi.com

Page 4 of 13

Functional pin description

SOT-23-6

Pin Name Pin Function

1

LX

Switch Pin. Connect this Pin to inductor and catch diode. Minimize the track

area to reduce EMI.

2

GND

Ground Pin

3

FB

Feedback Reference Voltage Pin. Series connect a resistor between WLED

and ground as a current sense. Sense the current feedback voltage to set the

current rating.

4

EN

Chip Enable (Active High). Voltage sensing input to trigger the function of

over voltage protection. Note that this pin is high impedance. There should be

a pull low 100kΩ resistor connected to GND when the control signal is

floating.

5

OUT

OVP Pin. Overvoltage Sense. When VOUT is greater than 29V, the internal

N-channel MOSFET turns off until VOUT drops below 29V, then the IC

reenters start. Connect a 1uF capacitor from OUT to GND.

6

VIN

Supply Input Voltage Pin. Bypass 1uF capacitor to GND to reduce the input

noise.