RN5T659 is a charge pump for white LED, which has a constant frequency and can be individually controlled by single wire serial pulse I/F for output enable/disable, LEDs current and LDOs ON/OFF.
The Ricoh RNST659 is a constant frequency charge pump integrated circuit designed specifically for white LED applications, such as LCD backlights. It features switchable charge pump modes (1x/1.33x/1.5x) and the ability to power up to five LEDs with individual current control.
| Current capability | Up to 115mA |
|---|---|
| Charge pump modes | 1x/1.33x/1.5x switchable |
| LDO Output Current | Up to 150mA |
| Package Type | 20pin QFN package |
| Operating Temperature Range | -40°C to +85°C |
The device can provide a current capability of up to 115mA.
The output voltage range extends from a minimum of 1.2V to a maximum of 3.3V.
The device should operate within a temperature range of -40°C to 85°C.