SGM3842 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).
SGM3842 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
- Synchronous Inverting Buck-Boost Converter
- 10V to -1.4V Output Voltage with 100mV Steps
- 5.0V Default Output Voltage