Datasheet4U Logo Datasheet4U.com

AAT3143 - High Efficiency 1X/1.5X/2X Charge Pump

Description

The AAT3143 is a low noise, constant frequency charge pump DC/DC converter that uses a trimode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications.

Features

  • ChargePump™ Input Voltage Range: 2.7V to 5.5V PWM Brightness Control Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives Four Low- or High-VF Type LEDs Up to 20mA LED Current per Channel No Inductors 1MHz Switching Frequency Small.

📥 Download Datasheet

Datasheet preview – AAT3143

Datasheet Details

Part number AAT3143
Manufacturer AAT
File Size 504.15 KB
Description High Efficiency 1X/1.5X/2X Charge Pump
Datasheet download datasheet AAT3143 Datasheet
Additional preview pages of the AAT3143 datasheet.

📁 Similar Datasheet

  • AAT3143 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3140 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3141 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3142 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3103 - 3-Channel Charge-Pump LED Driver (Advanced Analog Technology)
  • AAT3103 - Three-Channel Charge-Pump LED Driver (Skyworks)
  • AAT3104 - Low Cost 1x/2x 4 Channel Charge Pump WLED Driver (Advanced Analogic Technologies)
  • AAT3104 - Low Cost 1x/2x Four-Channel Charge Pump WLED Driver (Skyworks)
  • AAT3105 - Low Cost 1x/2x Four-Channel Charge Pump WLED Driver (Skyworks)
  • AAT3110 - MicroPower Regulated Charge Pump (Advanced Analogic Technologies)
Other Datasheets by AAT
  • AAT3140 - High Efficiency 1X/1.5X/2X Charge Pump
  • AAT3141 - High Efficiency 1X/1.5X/2X Charge Pump
  • AAT3142 - High Efficiency 1X/1.5X/2X Charge Pump
  • AAT3112 - High Efficiency Charge Pump
  • AAT3114 - High Efficiency 1.5X Fractional Charge Pumps
  • AAT3114A - High Efficiency 1.5X Fractional Charge Pumps
  • AAT3119 - High Efficiency 2X Charge Pump
  • AAT3120 - 3-Channel Charge Pump

Full PDF Text Transcription

Click to expand full text
High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications General Description The AAT3143 is a low noise, constant frequency charge pump DC/DC converter that uses a trimode load switch (1X), fractional (1.5X), and doubling (2X) conversion to maximize efficiency for white LED applications. The AAT3143 can deliver current levels up to 80mA to drive white LEDs connected to the four current source outputs from a 2.7V to 5.5V input. The current source outputs may source up to 20mA each and 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 VIN and VOUT) makes the AAT3143 ideally suited for small battery-powered applications.
Published: |