? 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

? Step-up and inverter converters
? Operating input voltage range from
2.5 V to 4.5 V
? Synchronous rectification for both DC-DC
converters
? 150 mA maximum output current
? 4.6 V fixed positive output voltage
? Programmable negative voltage by S-wire from
- 2.3 V to - 5.9 V
? Typical efficiency: 85 %
? Pulse skipping mode in light load condition
(IO < 10 mA)
? 1.6 MHz PWM mode control switching
frequency (IO > 10 mA)
? Enable pin for shutdown mode
? Low quiescent current: < 1 μA in shutdown
mode
? Soft-start with inrush current protection
? Over temperature protection
? Temperature range: -40 °C to 85 °C
? True shutdown mode
? Fast outputs discharge circuit after shutdown
? Package: DFN 12 leads - (3 x 3 mm)
