The AOZ29303QI is a highly integrated step‑down power module that combines a buck converter, inductor, and passive components in a compact QFN package. It operates from a 4.5 V to 30 V input range and delivers up to 3 A continuous output current with up to 93% peak efficiency.
The module is configurable with a few external components: output voltage is set by a resistor divider, soft‑start by an external capacitor, and switching frequency from 200 kHz to 1 MHz by an external resistor. Protection features include cycle‑by‑cycle over‑current, short‑circuit, over‑voltage, and over‑temperature protection.
| Input voltage range | 4.5 V to 30 V |
|---|---|
| Output voltage range | 0.8 V to 5.5 V (adjustable) |
| Continuous output current | up to 3 A |
| Peak efficiency | up to 93% |
| Shutdown current | 10 µA |
| Switching frequency | 200 kHz to 1 MHz (adjustable) |
| Maximum duty cycle | 87 % |
| Package | QFN 9 mm × 6 mm × 3.7 mm |
| Operating temperature range | -40 °C to +85 °C |
The module operates from 4.5 V to 30 V input voltage.
The output voltage is set using a resistor divider network.
It can deliver up to 3 A of continuous output current.
The device reaches up to 93 % peak efficiency.