It is a non synchronous buck controller. It uses a constant on time (COT) device i.e. LM5085.This circuit has ceramic output capacitors which have very low ESR. Therefore the ripple is generated using the DCR of the inductor. The ripple voltage is then superimposed onto the feedback voltage.
| Download the bill of materials for PMP7767 | Download |
| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP7767 BOM | 09 Jan 2012 | 97 | ||
| PMP7767 Schematic | 09 Jan 2012 | 172 |