Datasheet > AAT3169IFO-T1

AAT3169IFO-T1

更新时间： 2025-07-20 03:05:39

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
13页	854K
描述
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

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PRODUCT DATASHEET

AAT3169

SwitchReg

High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

General Description

Features

The AAT3169 is a low noise, constant frequency charge

pump DC/DC converter that uses a tri-mode load switch

(1X), fractional (1.5X), and doubling (2X) conversion to

maximize efficiency for white LED applications. The

AAT3169 is capable of driving six LEDs for a total of

180mA from a 2.7V to 5.5V input. The current sinks may

be operated individually or in parallel for driving higher

current LEDs. A low external parts count (two 1µF flying

capacitors and two small 1µF capacitors at IN and

OUTCP) make this part ideally suited for small, battery-

powered applications.

• V_INRange: 2.7V to 5.5V

• Fully Programmable Current with Single Wire

16-Step Logarithmic Scale

15/20/30mA Max Current

Four Low-Current Settings Down to 115µA

Low I_Q(65µA) for Single-Channel, Low-Current

▪

Mode

• Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum

Efficiency and V_FCoverage

• Drives Up to Six LEDs

• Individual Main-Sub (5-1) Group Control

• No Inductors, Low Noise Operation

• 1MHz Constant Switching Frequency

• Small Application Circuit

• Built-In Thermal Protection

• Built-In Auto-Disable for Open Circuit

• Automatic Soft Start

AnalogicTech’s AS²Cwire™ (Advanced Simple Serial

Control™) serial digital input is used to enable, disable,

and set current for each LED with a 16-level logarithmic

scale plus four low-current settings down to 115µA. For

optimized efficiency, low-current settings require only

65µA of housekeeping current.

• I_Q<1µA in Shutdown

Each output of the AAT3169 is equipped with built-in

protection for output short-circuit and auto-disable for

load short-circuit conditions. Built-in soft-start circuitry

prevents excessive inrush current during start-up. A low-

current shutdown feature disconnects the load from the

input and reduces quiescent current to less than 1µA.

• Thermally-Enhanced STDFN33-14 or QFN44-16

Package

Applications

• Color (RGB) Lighting

• Programmable Current Sink

• Transmissive Displays

• White LED Backlighting

The AAT3169 is available in a Pb-free, space-saving,

thermally-enhanced 16-pin 4x4mm QFN package or a

low-profile 14-pin 3x3mm STDFN package and is rated

over the -40°C to +85°C temperature range.

• White Photo Flash for Digital Still Cameras

Typical Application

C1+

C1-

C2+

1µF

Main

Sub

C2-

OUTCP

C_OUT

1µF

2.7V to 5.5V

C_IN

1µF

AAT3169

EN/SET

w w w . a n a l o g i c t e c h . c o m

3169.2008.03.1.3

12 3 4 5 6 7...13

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与AAT3169IFO-T1相关器件

型号	品牌	获取价格	描述	数据表
AAT3169ISN-T1	ANALOGICTECH	获取价格	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
AAT3169ISN-T1	AAT	获取价格	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
AAT3169ITO-T1	SKYWORKS	获取价格	LED Driver
AAT3169IWO-T1	SKYWORKS	获取价格	LED Driver
AAT3169_08	ANALOGICTECH	获取价格	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
AAT3170	ANALOGICTECH	获取价格	High Current LED Flash Driver Charge Pump IC
AAT3170	AAT	获取价格	High Current LED Flash Driver Charge Pump IC
AAT3170	SKYWORKS	获取价格	TDFN33-12
AAT3170IWP-T1	ANALOGICTECH	获取价格	High Current LED Flash Driver Charge Pump IC
AAT3170IWP-T1	AAT	获取价格	High Current LED Flash Driver Charge Pump IC

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