LP3382S datasheet(1/9 Pages) POWER

tên linh kiện	LP3382S

Giải thích chi tiết về linh kiện	1.2MHzFixed-Frequency PWM Operation

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Preliminary Datasheet

LP3382S

LP3382S – 00 Version 1.0 Datasheet

OCT.-2012

www.lowpowersemi.com

Page 1 of 9

High Performance, Constant Current Switching

Regulator For 8PCS White LED In Series

General Description

The LP3382S is a 1.2MHz PWM boost switching

regulator designed for constant- current white LED

driver applications. The LP3382S can drive a string

of up to 8 white LEDs in series, ensuring uniform

brightness and eliminating several ballast resistors.

The LP3382S 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 250 mV, which reduces

the power dissipation in the current 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

LP3382S

F: Pb-Free

Package:

B6: SOT23-6

Pin Configurations

(SOT23-6)

Features

High Efficiency: 92% 　

1.2MHzFixed-Frequency PWM Operation

Maximum Output Voltage up to 29V

Operating Range : 2.7V to 5.5V

Shutdown Supply Current:<1uA 　

Available in SOT23-6 Package 　

Built-in 29V Over Voltage Protection 　

Minimize the External Component

RoHS Compliant and 100% Lead (Pb)-Free

Applications

WLED Backlight driver

OLED Backlight driver

PDA

MID/PTV

Typical Application Circuit

Panel

EN

4

FB

3

Vin

6

OVP

5

LP3382S

4.7uH

2

Vin

Rset

Cin

10uF

Cout

2.2uF

Marking information

Part Number

Top Marking

Package

LP3382SB6F

F5

SOT23-6

Other Information please view website:

www.lowpowersemi.com.

Số phần tương tự - LP3382S

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Lowpower Semiconductor ...	LP3382	551Kb / 9P	1.2MHzFixed-Frequency PWM Operation
Lowpower Semiconductor ...	LP3382B6F	551Kb / 9P	1.2MHzFixed-Frequency PWM Operation

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