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LTC3218 - 400mA Single Wire Camera LED Charge Pump

Description

The LTC®3218 is a low-noise, high-current charge pump DC/DC converter capable of driving high current LEDs at up to 400mA from a 2.9V to 4.5V input.

Features

  • Low Noise Constant-Frequency Operation.
  • Multi-Mode Operation: 1x or 2x Boost Mode.
  • Automatic Mode Switching.
  • High Output Current: 150mA (Continuous), 400mA (Pulsed) From Li-Ion/Polymer Input.
  • 2-Second Flash Current Timeout for LED Protection.
  • Automatic Soft-Start.
  • Output Disconnect.
  • No Inductors.
  • 220mΩ Internal High Side Current Sense Resistor.
  • Single Resistor Programming Capability.
  • Tiny.

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Other Datasheets by Linear Technology (Analog Devices)

Part Number Description
LTC3210 MAIN/CAM LED Controller
LTC3210-1 MAIN/CAM LED Controller
LTC3210-2 MAIN/CAM LED Controllers
LTC3210-3 MAIN/CAM LED Controllers
LTC3212 RGB LED Driver and Charge Pump

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LTC3218 400mA Single Wire Camera LED Charge Pump FEATURES ■ Low Noise Constant-Frequency Operation ■ Multi-Mode Operation: 1x or 2x Boost Mode ■ Automatic Mode Switching ■ High Output Current: 150mA (Continuous), 400mA (Pulsed) From Li-Ion/Polymer Input ■ 2-Second Flash Current Timeout for LED Protection ■ Automatic Soft-Start ■ Output Disconnect ■ No Inductors ■ 220mΩ Internal High Side Current Sense Resistor ■ Single Resistor Programming Capability ■ Tiny Application Circuit (3mm × 2mm DFN Package, All Components < 1mm High) APPLICATIONS ■ LED Torch/Flash Supply for DSCs/Cellphones DESCRIPTION The LTC®3218 is a low-noise, high-current charge pump DC/DC converter capable of driving high current LEDs at up to 400mA from a 2.9V to 4.5V input.
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