Datasheet > LP3320

LP3320

更新时间： 2024-11-17 17:02:07

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
10页	431K
描述
OVP,OTP,Constant current,Low size

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LP3320 数据手册

Preliminary Datasheet

LP3320

High Performance, Constant Current Switching

Regulator For 11PCS White LED In Series

General Description

Features

The LP3320 is a 1.0MHz PWM boost switching

regulator designed for constant-current white LED

driver applications. The LP3320 can drive a string of

up to 11 white LEDs in series, ensuring uniform

brightness and eliminating several ballast resistors.

The LP3320 implements a constant frequency 1.0MHz

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 250mV, which reduces the power

dissipation in the current setting resistor.

 Up to 94% efficiency

 Shut-down current:<1uA

 Output voltage Up to 37V

 Internal Compensation, Soft-start

 Support down to 1% Dimming Duty Cycle

 1.0MHz fixed frequency switching

 High switch on current:1.5A

 Available in SOT23-6&TDFN-6(2mm×2mm)

Package

Typical Application Circuit

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.

VIN

LED+

4.7uH

10uF

2.2uF

VIN

GND

LED-

Order Information

12Ω

LP3320

F: Pb-Free

Package Type

B6: SOT23-6

QV:TDFN-6

Marking Information

Device

LP3320B6F LPS

FuYWX

LP3320QVF LPS

FuYWX

Marking

Package

Shipping

3K/REEL

SOT23-6

TDFN-6

Applications

4K/REEL



WLED Backlight driver

OLED Backlight driver

Marking indication:

Y:Production year W:Production week X:Production batch

PDA

MID

LP3320-02

Sep.-2021

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

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