LP3308 datasheet(1/9 Pages) POWER

номер детали	LP3308

подробное описание детали	1.4MHzFixed-Frequency PWM Operation

PDF	9 Pages

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производитель	POWER [Lowpower Semiconductor inc]

домашняя страница	http://www.lowpowersemi.com

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1 / 9 page

Preliminary Datasheet

LP3308

LP3308– 00 Version1.0 Datasheet

Feb.-2010

www.lowpowersemi.com

Page 1 of 9

1.4MHz,30V/1.3A High Performance, Boost Converter

General Description

The LP3308 is a 1.4MHz PWM boost switching

regulator

designed

for

constant-voltage

boost

applications. The LP3308 can drive a string of up to

30V. The LP3308 implements a constant frequency

1.4MHz 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 1230 mV, 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

LP3308

F: Pb-Free

Package:

B5: SOT23-5

B6: TSOT23-6

Pin Configurations

(TSOT23-6)

(SOT23-5)

Features

High Efficiency: 90% 

1.4MHzFixed-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 TSOT23-6/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

C1

4.7uF

Vin

R1

860K

R2

100K

C2

4.7uF

C3/NC

100pF

LP3308

4

3

6

5

SHDN

FB

Vin

SS

C4

33nF

10uH

D1

SS0520

Marking information

Please view website.

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Lowpower Semiconductor ...	LP3301	310Kb / 6P	1.5MHz Fixed-Frequency PWM Operation
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производитель	номер детали	датащи	подробное описание детали
Lowpower Semiconductor ...	LP3301S	544Kb / 8P	1.2MHzFixed-Frequency PWM Operation
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	LP3382S	555Kb / 9P	1.2MHzFixed-Frequency PWM Operation
	LP3383	544Kb / 9P	1.2MHzFixed-Frequency PWM Operation
	LP3385	534Kb / 9P	1.2MHzFixed-Frequency PWM Operation

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