AMOLED显示屏电源

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SGM38042A

The SGM38042A generates both positive and negative precision regulated voltage power sources with a control scheme for single inductor dual output converter.

应用领域

Single Inductor Triple Output AMOLED Display Power Supply

产品详情
GENERAL DESCRIPTION

The SGM38042A generates both positive and negative precision regulated voltage power sources with a control scheme for single inductor dual output converter. The positive output is programmable from 2.4V to 6.4V with 100mV per step, and the negative output is programmable from -2V to -3.2V with 50mV per step.

A linear regulator capable of 50mA output current is also integrated. The device is equipped with 1-Wire 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 SGM38042A is available in a Green WLCSP-1.51×2.10-15B package. It operates over an ambient temperature range of -40 to +85.

PIN CONFIGURATIONS

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FEATURES
  • Single Inductor for Triple Outputs

  • High Efficiency in Wide Output Loading Range

  • 850kHz PWM Mode Control Switching Frequency

  • Pulse-Skip Operation in Light Load Condition

  • Programmable Outputs with 1-Wire Interface

    VCPO = 2.4V to 6.4V

    VCNO = -2V to -3.2V

  • Auxiliary Output Rail: Fixed 3.3V, 2.8V or 1.8V

  • 100mA Output Current for VCPO and VCNO

  • Configurable Active Discharge

  • Internal Soft-Start to limit Inrush Current

  • Over-Temperature Protection (OTP)

  • Over-Current Protection (OCP)

  • Short Circuit Protection (SCP)

APPLICATIONS

AMOLED/LCD Smart-Phones/Media-Players

Wearable Device Display


ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM38042A-1YG/TRProductionWLCSP-1.51×2.10-15B15Y-40℃ to +85℃
SGM38042A-2YG/TRProductionWLCSP-1.51×2.10-15B15Y-40℃ to +85℃
SGM38042A-3YG/TRProductionWLCSP-1.51×2.10-15B15Y-40℃ to +85℃
SGM38042A-4YG/TRProductionWLCSP-1.51×2.10-15B15Y-40℃ to +85℃
SGM38042A-5YG/TRProductionWLCSP-1.51×2.10-15B15Y-40℃ to +85℃