LP3367 datasheet(1/10 Pages) POWER

부품명	LP3367

상세설명	1A Buck/Boost Charge Pump LED Driver

PDF	10 Pages

Scroll/Zoom	100%

제조업체	POWER [Lowpower Semiconductor inc]

홈페이지	http://www.lowpowersemi.com

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1 / 10 page

LP3367-02

Feb.-2011

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 1 of 10

Preliminary Datasheet

LP3367

1A Buck/Boost Charge Pump LED Driver

General Description

The LP3367 buck/boost charge pump LED driver is

designed for powering high brightness white LEDs for

camera flash applications. The LP3367 automatically

switches modes between step-up and step-down

ensuring that LED current does not depend on the

forward voltage. The LP3367 provides two current

levels for TORCH and FLASH modes. In TOUCH

mode, The LED current sense reference voltage is

50mV. The LED current can be determined by current

sense resistor. In FLASH mode, the current sense

reference voltage can be adjusted by external resistor.

The maximum LED current can be set up to 1A. The

LP3367 is available in a 10-lead 3mm*3mm TDFN-10

package and is rated over the -40°C to 85°C

temperature range.

Order Information

LP3367 □ □ □ □

F: Pb-Free

Package Type

QV: TDFN-10

Output type

Default: 500mA

A: 1000mA

Features



Input Voltage Range: 2.7V to 5.5V



Adjustable FLASH Mode Current



Output Current up to 1A



Up to 95% Efficiency in TORCH Mode



Automatic Buck/Boost Mode Switchover



Minimum External Components: No Inductors



<1uA Quiescent Current



2 MHz High Frequency Operation



50mV Reference for Low Loss Sensing



PWM Dimming Control



Automatic Soft Start Limits Inrush Current



Over-Voltage Protection



Over-Current protection



Thermal Fault Protection



Low Ripple and EMI



Ultra-Low Dropout Voltage in Buck Mode



1.6 Second Timeout in FLASH Mode



3mm×3mm TDFN-10 Package



RohS Compliant and 100% Lead (Pb)-Free

Applications



WLED Backlight driver



OLED Backlight driver



PDA



MID/PTV

Marking information

Device

Marking

Package

Shipping

LP3367

LPS

LP3367

XXXX

TDFN-10

3K/REEL

Y: Year code. W: Weeks code. X: Series number code.

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