The TPS51225/B/C is a cost-effective, dual-synchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency. The TPS51225/B/C supports high efficiency, fast transient response and provides a combined power-good signal. Adaptive on-time, D-CAP™ control provides convenient and efficient operation. The device operates with supply input voltage ranging from 5.5 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51225/B/C is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified from –40°C to 85°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Dual Synchronous Step-Down Controller with 5-V and 3.3-V LDOs datasheet (Rev. B) | 09 Sep 2012 | |
| User guide | TPS51225 Buck Controller Evaluation Module User's Guide (Rev. A) | PDF | HTML | 11 Feb 2022 | |
| Application note | Mosfet Driver Circuit Design Guide for TPS512xx (Rev. A) | 01 Apr 2019 | ||
| Application note | Understanding Dead-time Based On TPS51225/275/285 | 22 Aug 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (RUK) | 20 | Ultra Librarian |
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