Preliminary Datasheet

LP3315

LP3315– 00 Version1.0 Datasheet

Feb.-2012

www.lowpowersemi.com

Page 1 of 8

1.2MHz,30V/1A High Performance, Boost Converter

General Description

The LP3315 is a 1.2MHz PWM boost switching

regulator designed for constant-voltage boost

applications. The LP3315 can drive a string of up to

30V. The LP3315 implements a constant frequency

1.2MHz PWM control scheme. The high frequency

PWM operation also saves board space by reducing

external component sizes. To improve efficiency, the

feedback voltage is set to 1250mV, which reduces

the power dissipation in the voltage setting resistor.

Highly integration and internal compensation

network minimizes as 5 external component counts.

Optimized operation frequency can meet the

requirement of small LC filters value and low

operation current with high efficiency.

Ordering Information

LP3315

F: Pb-Free

Package:

B5: SOT23-5

Pin Configurations

Features

 High Efficiency: 90% 　

 1.2MHzFixed-Frequency PWM Operation

 Maximum Output Voltage up to 30V

 Guaranteed 13V/200mA Output with 5V input

 Operating Range : 2.7V to 5.5V

 Shutdown Supply Current:<1uA 　

 Programmable Soft-star

 Available in SOT23-6/SOT23-5 Package 　

 Minimize the External Component

 RoHS Compliant and 100% Lead (Pb)-Free

Applications

 

Panel Bais Voltage supply

 

OLED Backlight driver



Notebook Computers

 

Portable Applications

 

MID/PTV

Typical Application Circuit

OFF

ON

VOUT

Vin

4.7uH

LP3315

SHDN

4

FB

3

Vin

5

C2

2.2uF

C3

1nF

C1

4.7uF

R1

210K

R2

30K

Marking information

x represents the date( year month day)of the producing day

of the products.

Device No.

Marking

Package

Shipping

LP3315B5F

LPS

Fbxxx

SOT23-5

3K/Reel