GENERAL DEscriptION
The SGM3804 generates both positive and negative precision regulated voltage power sources, with a patent pending control scheme for single inductor dual output converter. Outputs are programmable in 100mV steps in 2.4V to 6.4V range, which are commonly used in drivers for LCD displays and AMOLED displays, as well as in any other circuits requiring both rails, with different loading on each rail. The device is equipped with I2C interface. With input in the range of 2.7V to 5.5V, the device is optimized for loading 100mA in boost-inverter mode and also works in buck-inverter mode.
The SGM3804 is available in a Green WLCSP- 1.7×1.51-12B package. It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES
Single Inductor for Positive & Negative Outputs
High Efficiency in Wide Output Loading Range
Outputs Programmable with I2C Interface
2.4V to 6.4V Programmable for Both Outputs
Factory Programmable Default Outputs:
SGM3804-0: VPO = +5.4V/VNO = -5.4V
SGM3804-1: VPO = +4.6V/VNO = -3.5V
SGM3804-2: VPO = +5.0V/VNO = -5.0V
SGM3804-3: VPO = +4.6V/VNO = -2.4V
SGM3804-4: VPO = +6.4V/VNO = -6.4V
1.6MHz Switching plus Pulse-Skip Operation
Configurable Stop Active Discharge
Slim Package Fits into *65132 Footprint
APPLICATIONS
AMOLED/LCD Smart-Phones/Pads/Media-Players
Wearable Device Display/Audio
AFE with Positive & Negative Rails