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RT4801H - Dual Output LCD Bias

General Description

The RT4801H is a highly integrated Boost and LDO and inverting charge pump to generate positive and negative output voltage.

The output voltages can be adjusted from 4V to 6V with 100mV steps by I2C interface protocols.

Key Features

  • 2.5V to 5.5V Supply Voltage Range.
  • Up to 90% Efficiency with Small Magnetics.
  • Support Up to 80mA Output Current.
  • Low 1A Shutdown Current.
  • Internal Soft-start Function.
  • Short Circuit Protection Function.
  • Over-Voltage Protection Function.
  • Over-Current Protection Function.
  • Over-Temperature Protection Function.
  • Elastic Positive and Negative Voltage On/Off Control by ENP/ENN.
  • Voltage Output from 4V to 6V per 0.1V.
  • Low Input Noise and EMI.

📥 Download Datasheet

Datasheet Details

Part number RT4801H
Manufacturer Richtek
File Size 1.44 MB
Description Dual Output LCD Bias
Datasheet download datasheet RT4801H Datasheet

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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.

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RT4801H Dual Output LCD Bias for Smartphones and Tablets General Description The RT4801H is a highly integrated Boost and LDO and inverting charge pump to generate positive and negative output voltage. The output voltages can be adjusted from 4V to 6V with 100mV steps by I2C interface protocols. With its input voltage range of 2.5V to 5.5V, the RT4801H is optimized for products powered by single-cell batteries and symmetrical output currents up to 80mA. The RT4801H is available in the WL-CSP-15B 1.31x2.07 (BSC) package. The recommended junction temperature range is −40C to 125C, and the ambient temperature range is −40C to 85C. Ordering Information RT4801H Package Type WSC : WL-CSP-15B 1.31x2.