GENERAL 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.
FEATURES
Synchronous Inverting Buck-Boost Converter (ELVSS)
-6.0V to -0.8V Output Voltage with 100mV Steps
-3.0V Default Output Voltage
1% Accuracy at -3V
700mA Output Current Capability
Synchronous Boost Converter (AVDD)
5.5V to 7.9V Output Voltage with 100mV Steps
7.3V Default Output Voltage
0.9% Accuracy at 7.3V
150mA 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
APPLICATIONS
Smartphones & Tablets
Active Matrix OLED Displays