The LM2854 PowerWise™ buck regulator is a 500-kHz or 1-MHz step-down switching voltage regulator capable of driving up to a 4-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LM2854 can accept an input voltage rail between 2.95 V and 5.5 V, and deliver an adjustable and highly accurate output voltage as low as 0.8 V. Externally established soft-start with a small capacitor facilitates controlled start-up, and the LM2854 is capable of starting gracefully into a pre-biased output voltage. Partial internal compensation reduces the number of external passive components and PC board space typically necessary in a voltage mode buck converter application, yet preserving flexibility to deal with ceramic and/or electrolytic based load capacitors. Lossless cycle-by-cycle peak current limit is used to protect the load from an overcurrent or short-circuit fault, and an enable comparator simplifies sequencing applications. The LM2854 is available in an exposed pad HTSSOP-16 package that enhances the thermal performance of the regulator.
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | LM2854 4-A 500-kHz / 1-MHz Synchronous Buck Regulator datasheet (Rev. E) | PDF | HTML | 04 oct 2017 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
| EVM User's guide | AN-1786 LM2854 500 kHz Buck Regulator Evaluation Board (Rev. B) | 01 may 2013 | ||
| EVM User's guide | AN-1880 LM2854 1MHz Buck Regulator Demo Board (Rev. B) | 01 may 2013 | ||
| Application note | AN-1197 Selecting Inductors for Buck Converters (Rev. B) | 23 abr 2013 |
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| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTSSOP (PWP) | 16 | Ultra Librarian |
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