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EUP2512

Dual Channel DC-DC Converter for AMOLED

Description

The EUP2512 generates power supply rails for active-matrix organic light emitting diode (AMOLED) displays. It includes

a step-up DC-DC and an inverting DC-DC converter making it suitable for battery operated products.

The step-up converter is a high-accuracy power-efficiency 250mA output regulator. It features an internal 0.5_N-MOSFET, 0.6_ P-MOSFET and 1.4MHz operation frequency allowing the use of small inductor and capacitors.

The integrated synchronous rectifier allows the true shutdown of the outputs. An internal digital soft-start function controls inrush currents. The step-up converter output can be externally set 4V to 8V.

The inverting converter is a high-accuracy 250mA regulator. It features an internal 0.4_ N-MOSFET, 0.5_ P-MOSFET and 1.4MHz operation frequency allowing the use of small inductor and capacitors. Its -6V to -1V output efficiency up to 80% at 150mA. An internal digital soft-start function controls inrush currents.

The EUP2512 is available in a small (3mm x 3mm x 0.6mm) 12 pin thin TDFN package and operates over the -40ºC to +85ºC temperature range.

Feature

  • • 2.5V to 4.5V Input Supply Range
  • • 1.4MHz Current Mode Step Up Regulator
  • - External Programmable 4V~8V Output Voltage
  • - Maximum 250mA Output
  • - High Accuracy (+/- 1%)
  • - Built-In 18V, 0.5_ N-MOSFET
  • - Built-In 18V, 0.6_ P-MOSFET Synchronous Rectifier
  • - Cycle-by-Cycle Current Limit
  • - More than 85% Efficiency at 150mA
  • - Good Low-Duty Factor Operation
  • • 1.4MHz Current Mode Inverting Regulator
  • - -6V to -1V
  • - Maximum 250mA Output
  • - High Accuracy (+/- 2%)
  • - Built-In 18V, 0.5_ P-MOSFET
  • - Built-In 18V, 0.4_ N-MOSFET Synchronous Rectifier
  • - Cycle-by-Cycle Current Limit
  • - Up to 80% Efficiency at 150mA
  • • True Shutdown Mode for Dual Outputs
  • • Timer-Delayed Output Under-Voltage Shutdown for Dual Outputs
  • • Over Temperature Protection
  • • 12 Pin 3mm x 3mm thin TDFN Package
  • • RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free

Application

  • • OLED Displays
  • • Phone, DSC Display
  • • Automobile Navigation
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