Datasheet > AAT1500-S5-T

AAT1500-S5-T

更新时间： 2024-09-25 04:30:31

品牌	Logo	应用领域
AAT		转换器升压转换器
页数	文件大小	规格书
14页	288K
描述
CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS

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AAT1500-S5-T 数据手册

Advanced Analog Technology, Inc.

July 2008

AAT1500

Product information presented is current as of publication date. Details are subject to change without notice

CONSTANT CURRENT BOOST CONVERTER

FOR 1 TO 4 WHITE LEDS

FEATURES

GENERAL DESCRIPTION

The AAT1500 is a step-up converter that provides a

solution to drive 1 to 4 white LEDs with a constant

current from a lithium cell, and its switching frequency is

fixed at 1 MHz.

ꢀ

Up to 4 LEDs at 2.8V Supply

High Efficiency (85%)

Output Over Voltage Protection

HV Internal Switch

The AAT1500 offers a low 0.25V reference, which

minimizes power loss in the current setting resistor and

improves efficiency. Except in SOT23-5 package,

protection features include output over voltage

protections. The AAT1500 consists of a 0.1µA shutdown

current, and HV internal switch. Input supply range

allows operation from 2.6V to 6V.

1 MHz PWM Switching Frequency

Uses Tiny 1 mm Height Inductor

2.6V to 6V Input Range

0.1µA Shutdown Current

SOT23-5 , SOT23-6,TSOT23-6, and VSON8

Packages Available

The AAT1500 is available in SOT23-5, SOT23-6,

TSOT23-6 and VSON8 packages.

APPLICATIONS

ꢀ

Palmtops

MP3 Player

PIN CONFIGURATION

Digital Still Cameras

Portable Media Player

Cell Phones and Smart Phones

Electronic Information Organizers

TYPICAL APPLICATION

I_R1

R₁

–

Advanced Analog Technology, Inc. –

Version 1.00

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