Datasheet > RT4533

RT4533

更新时间： 2024-02-25 17:14:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
11页	144K
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中文翻译

获取价格

技术参数
数据手册

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RT4533 技术参数

Status：	Active	Vin (min) (V)：	2.5
Vin (max) (V)：	5.5	SW Freq (typ) (kHz)：	1100
Number of LEDs (max) (pcs)：	10	Iout (max)/channel (mA)：	30
Iq (typ) (mA)：	0.35	Dimming Control：	PWM
Topology：	Boost	Features：	100% Duty Cycle;OCP;OVP
Package Type：	TSOT-26

RT4533 数据手册

RT4533/A

Asynchronous Boost Converter for 10 WLEDs

General Description

Features

^2.5V to 5.5V Input Voltage Range

^36.5V Open LED Protection for 10 WLEDs

^PWM Dimming Brightness Control

^200mV / 300mV Reference Voltage with 2%

Accuracy

The RT4533/Ais a highly integrated LEDdriver IC capable

of driving 10 WLEDs in series. It is composed of a current

mode Boost converter integrated with a 36.5V/1.2A power

switch.

The RT4533/A supports a wide input voltage range from

2.5V to 5.5V and runs at a fixed frequency of 1.1MHz.

The LED current is set via an external resistor and the

feedback voltage is regulated to 200mV / 300mV.

^1.1MHz Switching Frequency

^Built-In Soft-Start

^Over-Temperature Protection

^Internal Compensation

For brightness dimming, the RT4533/A supports PWM

dimming which determines the feedback reference voltage.

^Current Limit

^RoHS Compliant and Halogen Free

Applications

 Cellular Phones

Ordering Information

RT4533/A

Package Type

J6 : TSOT-23-6

 Digital Cameras

 Probable Instruments

Lead Plating System

G : Green (Halogen Free and Pb Free)

Marking Information

RT4533GJ6

Feedback Voltage

RT4533 : 200mV

RT4533A : 300mV

Note :

0R= : Product Code

0R=DNN

DNN : Date Code

Richtek products are :

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

RT4533AGJ6

1L=DNN

1L= : Product Code

DNN : Date Code

 Suitable for use in SnPb or Pb-free soldering processes.

Simplified Application Circuit

OUT

VOUT

RT4533/A

VIN

Enable

GND

is a registered trademark of Richtek Technology Corporation.

DS4533/A-02 September 2015

www.richtek.com

12 3 4 5 6 7...11

中文翻译

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