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SGM3842 Datasheet Quad-Output 1A AMOLED Display Power Supply

Manufacturer: SG Micro

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General Description

The SGM3842 is designed for powering AMOLED displays which requires VELVDD, VELVSS, VAVDD and VDVDD.

The device integrates two Boost converters, VO1 for VELVDD and VO3 for VAVDD, a dual-phase inverting Buck-Boost converter VO2 for VELVSS and a Buck converter VO4 for VDVDD.

Output voltages of all the four converters can be programmed in digital steps through the digital interface control pins (SWIRE1 & SWIRE2).

Overview

SGM3842 Quad-Output 1A AMOLED Display Power Supply GENERAL.

Key Features

  • 2.9V to 4.8V Input Supply Voltage Range.
  • Synchronous Boost Converter (ELVDD).
  • 4.6V to 5.2V Output Voltage with 100mV Steps.
  • 4.6V Default Output Voltage.
  • 0.8% Accuracy at 4.6V.
  • 1A Output Current Capability.
  • Output Voltage Sensing Pin for Path Loss Compensation (FB1).
  • Synchronous Inverting Buck-Boost Converter (ELVSS).
  • -10V to -1.4V Output Voltage with 100mV Steps.
  • -5.0V Default Output Voltage.
  • 1% Accuracy at -5V.
  • 1A Output Current Capa.

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