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 I 2 C 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 WLCSP1.7×1.51-12B 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 I

2

C 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