德信 EUTECH

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.

• • 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

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