This document describes a monolithic power management solution for Blu-ray disc players, providing true shutdown, reset, and programmable step-up voltage functions. It integrates two step-down converters and one step-up converter, optimized for powering low-voltage digital cores and supplying the blue laser in mobile applications. The output voltage is programmable and the device has high efficiency.
This application note details the use of the STODDO1, a complete power management solution for high-definition optical disc drives (ODD) such as Blu-ray players. The device integrates two step-down converters and one step-up converter to power digital cores and blue lasers efficiently.
| Step-down current capability | 0.8 A |
|---|---|
| Step-up output voltage range | 6.5 V to 14 V |
| Step-up current capability | 0.7 A |
| Switching frequency | 1.2 MHz typ. |
The output voltage is programmable by using the S-wire protocol.
The TX pin must be connected to GND.