SGM3838YG_TR Triple-Output Converters 700mA AMOLED Display Power Supply

FEATURES

• Synchronous Inverting Buck-Boost Converter (ELVSS)-6.0V to -0.8V Output Voltage with 100mV Steps-3.0V Default

Output Voltage1% Accuracy at -3V700mA Output Current Capability
• Synchronous Boost Converter (AVDD)5.5V to 7.9V Output Voltage with 100mV Steps7.3V Default Output Voltage0.9%

Accuracy at 7.3V150mA Output Current Capability
• VIN and VOUT Bi-Directional Isolation
• Short Circuit Protection (SCP)
• Overload Protection
• Thermal Shutdown
• VELVSS Start-Up Delay: 5.6ms
• Short Circuit and OLP Detection Time: 0.71ms

• Available in a Green WLCSP-2.5×2.5-36B Package

Description

The SGM3838 is designed for powering AMOLED displays which requires VELVDD, VELVSS and VAVDD. The device

integrates two boost converters, VO1 for VELVDD and VO3 for VAVDD, and a dual-phase inverting Buck-Boost converter

VO2 for VELVSS. Output voltages of all the three converters can be programmed in digital steps through the digital

interface control pin (SWIRE).

The SGM3838 is available in a Green WLCSP-2.5×2.5-36B package.

Application

• Smartphones & Tablets
• Active Matrix OLED Displays