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AAT3124, AAT3124ISN-2.0-T1, AAT3124ISN20

Table of contents:
Info of AAT3124
Info of AAT3124ISN-2.0-T1
Info of AAT3124ISN20

AAT3124, AAT3124ISN-2.0-T1, AAT3124ISN20 Selling Leads, Datasheet

MFG:AATI D/C:08+

AAT3124, AAT3124ISN-2.0-T1, AAT3124ISN20 Picture

AAT3124, AAT3124ISN-2.0-T1, AAT3124ISN20 Datasheet download

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Part Number: AAT3124

MFG: AATI

Package Cooled:

D/C: 08+

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AAT3124 General Description

The AAT3123/24 is a low noise, constant frequen-cy charge pump DC/DC converter that uses a dualmode Load Switch (1X) and fractional (1.5X) con-version to maximize efficiency for White LED appli-cations. The device can be used to produce currentlevels up to 20mAto drive up to 6 LEDs from a 2.7V to 5.5V input. Outputs may be operated indi- vidually or paralleled for driving higher-current LEDs. Low external parts counts (two 1F flying capacitors and two small 1F capacitors at V_IN ,and OUT) make the AAT3123/24 ideally suited for small battery-powered applications.

AAT3124 Maximum Ratings

Symbol	Description	Value	Units
V_IN	Input Voltage	-0.3 to 6	V
V_OUT	Charge Pump Output	-0.3 to 6	V
V_EN/SET	EN/SETto GND Voltage	-0.3 to 6	V
V_EN/SET(MAX)	Maximum EN/SETto Input Voltage	0.3	V
I_OUT²	Maximum DC Output Current	150	mA
T_J	Operating Junction Temperature Range	-40 to 150	°C

AAT3124 Features

Dual Mode 1x and 1.5x Charge Pump for
Maximum Efficiency
Drives Low-V _F& High-V_F Type LEDs
Up to 6 20mAOutputs
32 Position Logarithmic Scale with Digital Control
Simple Serial Control™(S²Cwire™interface
Low Noise Constant Frequency Operation
1MHz Switching Frequency
Small Application Circuit
Regulated Output Current
Automatic Soft-Start
V_INRange: 2.7V to 5.5V
No Inductors
Iq < 1Ain Shutdown
Temperature Range -40 to 85°C
16 pin 4x4 QFN package (AAT3124)
12 pin TSOPJW-12 package (AAT3123)

AAT3124 Typical Application

White LED Backlighting
White Photo-Flash for DSCs
Color (RGB) Lighting
Programmable Current Source

AAT3124 Connection Diagram

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