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RT4823 - Wide Input and Ultra-Low Quiescent Current Boost Converter

Description

The RT4823 integrates built-in power transistors, synchronous rectification, and low supply current to provide a compact solution for systems using advanced Li-Ion battery chemistries.

Features

  • Ultra-Low Operating Quiescent Current.
  • Quickly Start-Up Time (< 400sec).
  • 3 Few External Components : 1H Inductor, 0402 Case Size Input and 0603 Case Size Output Case Size Capacitors.
  • Input Voltage Range : 1.8V to 5.5V.
  • Support VIN > VOUT Operation.
  • Default Boost Output Voltage Setting : VOUT = 5V.
  • Maximum Continuous Load Current : 1.3A at VIN > 3.6V Boosting VOUT to 5V.
  • Up to 93% Efficiency.
  • EN(H) : Boost Mode.
  • EN(L), BP(H) : Bypass Mode.

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Datasheet preview – RT4823

Datasheet Details

Part number RT4823
Manufacturer Richtek
File Size 725.36 KB
Description Wide Input and Ultra-Low Quiescent Current Boost Converter
Datasheet download datasheet RT4823 Datasheet
Additional preview pages of the RT4823 datasheet.

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Full PDF Text Transcription

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RT4823 Wide Input and Ultra-Low Quiescent Current Boost Converter with High Efficiency General Description The RT4823 integrates built-in power transistors, synchronous rectification, and low supply current to provide a compact solution for systems using advanced Li-Ion battery chemistries. The RT4823 is capable of supplying significant energy when the battery voltage is lower than the required voltage for system power ICs. The RT4823 is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. In boost mode, output voltage regulation is guaranteed to a maximum load current of 1500mA. Quiescent current in shutdown mode is less than 1A, which maximizes the battery life.
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