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AAT3134

Features: VIN Range: 2.7 - 5.5 Volts< 1.0of Shutdow1 MHz Switching FrequencyFully Independent Display LightingDual Mode 1x and 1.5x Charge Pump forMaximum EfficiencyDrives Low-VF & High-VFType LED'sUp to Six 20mAOutputsMulti Position Brightness Scale with Digital ControlLow Noise Constant F...

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SeekIC No. : 004261120 Detail

AAT3134: Features: VIN Range: 2.7 - 5.5 Volts< 1.0of Shutdow1 MHz Switching FrequencyFully Independent Display LightingDual Mode 1x and 1.5x Charge Pump forMaximum EfficiencyDrives Low-VF & High-VFTyp...

AAT3134 Data Sheet

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Part Number:
AAT3134
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

VIN Range: 2.7 - 5.5 Volts
< 1.0of Shutdow
1 MHz Switching Frequency
Fully Independent Display Lighting
Dual Mode 1x and 1.5x Charge Pump for
Maximum Efficiency
Drives Low-VF & High-VFType LED's
Up to Six 20mAOutputs
Multi Position Brightness Scale with Digital Control
Low Noise Constant Frequency Operation
Small Application Circuit
Regulated Output Current
Automatic Soft-Start
No Inductors
16-pin QFN package
-40 to +85°C Temperature rang


Application

White LED Backlighting
White Photo-Flash for DSC's
Color (RGB) Lighting
Programmable Current Source


Pinout

Connection Diagram


Specifications

Symbol Description
 Value Units
VIN, POK
 Input Voltage, POK -0.3 to 6.0 V
IOUT
 DC Output Current -0.3 to 6.0 V
FB,VEN/SET
 FB or EN/SETto GND Voltage -0.3 to 6.0 V
VEN/SET(MAX)
 Maximum EN/SETto Input Voltage 0.3 V

IOUT2
 Maximum DC Output Current 150 mA
TJ Operating Junction Temperature Range -40 to 150 °C



Description

The AAT3134 is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode Load Switch (1X) and fractional (1.5X) con- version to maximize efficiency for White LED appli-cations. The device can be used to produce current evels up to 20mAin each of its six outputs to drive LED's from a 2.7V to 5.5V input. Outputs may be operated individually or paralleled for driving high-er-current LED's. Low external parts counts (two 1F flying capacitors and two small 1F capacito at VIN , and OUT) make the AAT3134 ideally suited for small battery-powered applications.




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