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SGM3804
Single Inductor, Positive/Negative Dual Output, Buck/Boost Converter
Single Inductor, Positive/Negative Dual Output, Buck/Boost Converter
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.

PIN CONFIGURATIONS

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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

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM3804-4YG/TR Production WLCSP-1.7×1.51-12B 12 Y -40℃ to +85℃ Samples
SGM3804-3YG/TR Production WLCSP-1.7×1.51-12B 12 Y -40℃ to +85℃ Samples
SGM3804-2YG/TR Production WLCSP-1.7×1.51-12B 12 Y -40℃ to +85℃ Samples
SGM3804-1YG/TR Production WLCSP-1.7×1.51-12B 12 Y -40℃ to +85℃ Samples
SGM3804-0YG/TR Production WLCSP-1.7×1.51-12B 12 Y -40℃ to +85℃ Samples