Europe/EnglishChina/中文Other/English
SGM38042B-1
Single Inductor Triple Output AMOLED Display Power Supply
Single Inductor Triple Output AMOLED Display Power Supply
GENERAL DESCRIPTION

The SGM38042B-1, SGM38042B-3 and SGM38042B-5 generate 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. These devices are equipped with 1-Wire interface. With input in the range of 2.7V to 5.5V, these devices are optimized for loading 100mA in boost-inverter mode and also work in buck-inverter mode.

The SGM38042B-1/3/5 are available in a Green WLCSP-1.51×2.10-15B package. They operate over an ambient temperature range of -40 to +85.

PIN CONFIGURATIONS

1614329169981029.png

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 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 Number Status Package Pins Pb-Free Temp Range
SGM38042B-1YG/TR Production WLCSP-1.51×2.10-15B 15 Y -40℃ to +85℃ Samples