STMicroelectronics STBB1 Buck-Boost Converter
STMicroelectronics STBB1 Buck-Boost Converter is a fixed frequency, high-efficiency DC/DC converter that can provide output voltage ranging from 1.2V to 5.5V and input voltages from 2.0V to 5.5V. The STBB1 Buck-Boost Converter can operate with input voltages higher than, equal to, or lower than the output voltage make the product suitable for single lithium-Ion, multicell alkaline, or NiMH applications where the output voltage is within the battery voltage range. STMicroelectronics' STBB1 Buck-Boost Converter also includes a soft-start control, thermal shutdown, and current limit.
Features
- Buck-boost DC-DC converter
- Operating input voltage range from 2.0V to 5.5V
- 2% DC feedback voltage tolerance
- Synchronous rectification
- Shutdown function
- 1.5MHz switching frequency
- Power save mode at light load
- Typical efficiency: > 94%
- 1A output current capability
- Shutdown current < 1μA
- Available in DFN10 (3mm x 3mm)
Applications
- Single-cell Li-Ion and 3 cells alkaline, Ni-MH powered devices
- SD/MMC memory card supply
- Cell phones
- Digital cameras
Additional Resources
Opublikowano: 2009-04-23
| Zaktualizowano: 2022-03-11