Datasheet4U Logo Datasheet4U.com

AAT3157 - High Efficiency 1X/1.5X/2X Charge Pump

Description

The AAT3157 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™ VIN Range: 2.7V to 5.5V Fully Programmable Current with Single Wire.
  • 16 Current Levels.
  • Four Low Current Settings Down to 50µA Low IQ (50µA) for Low Current Mode Tri-Mode 1X, 1.5X, and 2X Charge Pump for Maximum Efficiency and VF Coverage Drives up to Three Channels of LEDs No Inductors, Low Noise Operation 1MHz Constant Switching Frequency Small.

📥 Download Datasheet

Datasheet preview – AAT3157

Datasheet Details

Part number AAT3157
Manufacturer AAT
File Size 296.25 KB
Description High Efficiency 1X/1.5X/2X Charge Pump
Datasheet download datasheet AAT3157 Datasheet
Additional preview pages of the AAT3157 datasheet.

📁 Similar Datasheet

  • AAT3157 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3151 - High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications (Advanced Analogic Technologies)
  • AAT3151 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3151B - High Efficiency 1X/1.5X Charge Pump (Skyworks)
  • AAT3152 - High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications (Advanced Analogic Technologies)
  • AAT3152 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3153 - High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications (Advanced Analogic Technologies)
  • AAT3155 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
  • AAT3156 - High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications (Advanced Analogic Technologies)
  • AAT3158 - High Efficiency 1X/1.5X/2X Charge Pump (Skyworks)
Other Datasheets by AAT
  • AAT3155 - High Efficiency 1X/1.5X/2X Charge Pump
  • AAT3158 - 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
  • AAT3122 - High Efficiency 1X/1.5X Fractional Charge Pump

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications General Description The AAT3157 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 AAT3157 is capable of driving up to three channels of LEDs at 20mA per channel 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.
Published: |