RT9284APB datasheet(1/14 Pages) RICHTEK

Part #	RT9284APB

Description	Maximum Output Voltage up to 20V, Dimming with Zero-inrush and Wide Frequency Range of 100 to 100kHz

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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1 / 14 page

1

RT9284A/B

DS9284A/B-07 April 2011

www.richtek.com

Pin Configurations

Applications

Camera Flash White LED

Mobile Phone, Smart Phone LED Backlight

PDA LED Backlight

Digital Still Camera

Camcorder

Tiny Package, High Performance, Constant Current

Switching Regulator for White LED

Ordering Information

TOP VIEW

Features

VIN Operating Range : 2.7V to 5.5V

Maximum Output Voltage up to 20V

Dimming with Zero-inrush and Wide Frequency

Range of 100 to 100kHz

Over Voltage Protection

Output Current up to 100mA at VOUT : 12V

Zero Shutdown Supply Current

Minimize the External Component

Small LC Filter

Internal Soft Start

RoHS Compliant and 100% Lead (Pb)-Free

General Description

The RT9284A/B is a compact, high efficient and high

integration LED driver. Internal 22V MOSFET can support

2 to 5 White LEDs for backlighting and camera flashing.

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. Internal soft start function can reduce the inrush

current. Tiny package type of TSOT-23-5 and TSOT-23-6

packages provide the best solution for PCB space saving

and total BOM cost.

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

Note :

Richtek products are :

RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

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

TSOT-23-6

TSOT-23-5

LX GND FB

VDD

EN

4

23

5

LX GND FB

VDD OVP EN

4

23

5

6

RT9284

Package Type

J5 : TSOT-23-5

J6 : TSOT-23-6

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

OVP Voltage

15 : 15V

20 : 20V

(

)

FB Voltage

A : 1.235V

B : 0.25V

-

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