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
×
3mm
×
0.6mm)
12 pin thin TDFN package and operates over the -40ºC to
+85ºC temperature range.
FEATURES
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 (+/- 1%)
- 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
×
3mm thin TDFN Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
OLED Displays
Phone, DSC Display
Automobile Navigation
DS2512
Ver1.0
Mar. 2011
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
