The document describes a micro PMU with a 1.2A buck regulator, two 300mA LDOs supervisory, watchdog, and manual reset functions.
The ADP5041 combines a high‑performance 1.2 A buck regulator with two 300 mA low‑dropout regulators (LDOs) in a compact 20‑lead LFCSP package. It offers a wide input voltage range, high efficiency, and integrated supervisory features such as watchdog timer and reset output.
The document provides full electrical specifications, recommended external components, absolute maximum ratings, pin descriptions, factory‑programmable options, and ordering information, allowing designers to integrate the device into portable and battery‑powered systems.
| Input voltage range | 2.3 V to 5.5 V |
|---|---|
| Buck regulator output voltage range | 0.8 V to 3.8 V |
| LDO output voltage range | 0.8 V to 5.2 V |
| Peak efficiency | up to 96 % |
| Operating frequency | 3 MHz |
| Number of LDOs | Two 300 mA LDOs |
| Shutdown current | 0.1 µA |
The device operates from 2.3 V up to 5.5 V on its AVIN input.
It contains two low‑dropout regulators, each rated at 300 mA.
The buck regulator can achieve up to 96 % efficiency.
The buck regulator can be set to output voltages between 0.8 V and 3.8 V.