The ADP1878/ADP1879 is a synchronous buck controller with constant on time and valley current mode
The ADP1878 and ADP1879 are synchronous step‑down (buck) controllers offering a wide input voltage range, low‑dropout regulation, and programmable current‑limit. The ADP1879 adds a Power Saving Mode (PSM) that skips pulses at light loads to improve efficiency. Both devices support a minimum output voltage of 0.6 V and are supplied in a 14‑lead LFCSP_WD package.
The document provides electrical specifications, absolute maximum ratings, pin descriptions, typical performance curves, and an ordering guide. Application examples include telecommunications, networking systems, servers, set‑top boxes, and DSP core power supplies.
| Input voltage range | 2.95 V to 20 V |
|---|---|
| Minimum output voltage | 0.6 V |
| Package type | 14‑lead LFCSP_WD |
The devices operate with an input voltage from 2.95 V up to 20 V.
Both parts can regulate the output down to 0.6 V.
Yes, the ADP1879 version adds a Power Saving Mode (PSM) for light‑load efficiency.
They are offered in a 14‑lead LFCSP_WD (lead‑frame chip‑scale) package.