The SGM3839 is designed for powering AMOLED displays which require VELVDD, VELVSS and VAVDD. The device integrates two Boost converters
Triple-Output 1200mA AMOLED Display Power Supply
The SGM3839 is designed for powering AMOLED displays which require 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 SGM3839 is available in a Green WLCSP-2.90×2.96-49B package.
2.5V to 4.8V Input Supply Voltage Range
Synchronous Boost Converter (ELVDD)
4.6V to 5.0V Output Voltage with 100mV Steps
4.6V Default Output Voltage
0.8% Accuracy at 4.6V
1200mA Output Current Capability (VIN ≥ 2.9V, VVO1 = 4.6V, VVO2 = -3V)
Output Voltage Sensing Pin for Path Lose Compensation (FBS)
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
1200mA Output Current Capability (VIN ≥ 2.9V, VVO1 = 4.6V, VVO2 = -3V)
Synchronous Boost Converter (AVDD)
5.5V to 7.9V Output Voltage with 100mV Steps
7.3V Default Output Voltage
1% 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: 5.5ms
Short Circuit and OLP Detect Time: 0.68ms
Available in a Green WLCSP-2.90×2.96-49B Package
Smart Phone, Tablet, Notebook
Active Matrix OLED Display
Part Number | Status | Package | Pins | Pb-Free | Temp Range |
SGM3839YG/TR | Production | WLCSP-2.90×2.96-49B | 49 | Y | -40℃ to +85℃ |