|
|
| General Description |
| The D303 is a DC/DC converter to provide the power of wearable AMOLED (Active Matrix Organic Light Emitting Diode) display panel. The device integrates buck-boost converter for AVOUT, 80mA positive output voltage for OVDD, 80mA inverting converter for OVSS and 30mA positive output voltage for AVDD, all of which are suitable for battery operated products. In addition, it works in pulse skipping mode during light load condition. The enable pins allow turning off the device so reducing the current consumption to less than 0.1uA. The device includes soft start with controlled inrush current limit, thermal shutdown and short circuit protection. The digital control pin (CTRL) allows programming OVSS in digital steps. The D303 uses a novel technology enabling excellent line and load regulation.
|
| Features |
- A Step up-down converter and an Inverting converter.
- 2.9V to 4.5V input voltage range
- Synchronous rectification for both DC/DC converters
- Integrated LDO regulators for OVDD and AVDD.
- Programmable OVDD = 3.0V to 4.6V in 100mV steps, Default = 3.3V
- Programmable OVSS = -0.8V to -4.0V in 100mV steps, Default = -3.3V
- Positive output voltage AVDD = 3.3V
- ENAVDD pin for AVDD shutdown mode
- Low quiescent current in shutdown mode
- 80mA output current for OVDD and OVSS and 30mA output current for AVDD
- 1MHz PWM mode control switching frequency
- Soft-start with inrush current protection
- Short-circuit protection
- Over-temperature protection
- Over-current protection
- Under voltage lockout function
- 2.5mm x 2.5mm x 0.4mm LFCSP16 Package
- 1.62mm x 1.62mm x 0.55mm WLCSP16 Package
|
| Application |
- Active Matrix OLED Displays
- Wearable Device |
| Typical Application |
 |
|
