LP3320 datasheet(1/9 Pages) POWER

tên linh kiện	LP3320

Giải thích chi tiết về linh kiện	High Performance, Constant Current Switching

PDF	9 Pages

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nhà sản xuất	POWER [Lowpower Semiconductor inc]

Trang chủ	http://www.lowpowersemi.com

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LP3320-00

Jan.-2018

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

Page 1 of 9

Preliminary Datasheet

LP3320

High Performance, Constant Current Switching

Regulator For 11PCS White LED In Series

General Description

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.

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.

Order Information

LP3320

F: Pb-Free

Package Type

B6: SOT23-6

QV:TDFN-6

Applications



WLED Backlight driver



OLED Backlight driver



PDA



MID/PTV

Features



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

VIN

EN

NC

LX

6

4

1

5

2

GND

LED+

VIN

4.7uH

C2

2.2uF

R1

12Ω

C1

10uF

FB 3

LED-

Marking Information

Device

Marking

Package

Shipping

LP3320B6F LPS

FuYWX

SOT23-6

3K/REEL

LP3320QVF LPS

FuYWX

TDFN-6

4K/REEL

Marking indication:

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

Số phần tương tự - LP3320

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Lowpower Semiconductor ...	LP3321	505Kb / 9P	1.3MHzFixed-Frequency PWM Operation
Lowpower Semiconductor ...	LP3322	515Kb / 8P	1.1MHzFixed-Frequency PWM Operation
Vishay Siliconix	LP3325CL	105Kb / 2P	Surface Mount Current Sense Transformers 09-Mar-12
Cornell Dubilier Electr...	LP332M025A1P3	167Kb / 3P	105 ?C Snap-In Aluminum Electrolytic Capacitors
Cornell Dubilier Electr...	LP332M025A1P3	355Kb / 4P	Stable ESR, Long Life, Snap-In

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Mô tả tương tự - LP3320

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Richtek Technology Corp...	RT9272	176Kb / 11P	High Performance, Constant Current LED Driver for Dual Panel Mobile Phone
Richtek Technology Corp...	RT9284A	261Kb / 14P	Tiny Package, High Performance, Constant Current Switching Regulator for White LED
Kingbor Technology Co	KB4312	181Kb / 9P	Tiny Package, High Performance, Constant Current Switching Regulator for White LED
Lowpower Semiconductor ...	LP3303	375Kb / 7P	High Performance, Constant Current Switching Regulator For 9PCS White LED
ON Semiconductor	NSI50350AST3G	201Kb / 7P	Constant Current Regulator Constant Current Regulator May, 2012 ??Rev. 3
uPI Group Inc.	UP6003	152Kb / 11P	Tiny Package, High Performance, Constant Current Switching Regulator
Feeling Technology Corp...	FP7201	770Kb / 14P	Constant Current Switching Regulator for White LED
Grenergy Opto, lnc.	GR6004	756Kb / 13P	Constant Current Switching Converter for High Brightness LED Driving
Lowpower Semiconductor ...	LP3310	388Kb / 9P	High Performance, Constant Current Switching Regulator For 8PCS White LED In Series
Shenzhen Huazhimei Semi...	HM9922	494Kb / 7P	Switching step-down LED constant current driver

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