The ANGSEMI AS6533 datasheet details a 3 MHz synchronous boost converter for flash LED applications, including specifications, features, and packaging.
The AS6533 is a 3 MHz fixed‑frequency synchronous boost converter optimized for flash LED and movie‑mode applications. It provides adaptive regulation, high efficiency, and multiple protection mechanisms such as over‑voltage, over‑temperature, and cycle‑by‑cycle current limiting.
Key features include two logic inputs for flash and movie modes, independent current setting via external resistors, a soft‑start to limit inrush, and a shutdown current below 1 µA. The device is supplied in a 14‑pin 2 mm × 3 mm DFN package and operates from 2.7 V to 5.0 V across –40 °C to +85 °C.
| Input Voltage Range | 2.7V to 5.0V |
|---|---|
| Switching Frequency | up to 3.0 MHz |
| Flash Mode Output Current | up to 1.0 A per channel |
| Movie Mode Output Current | up to 0.40 A per channel |
| Efficiency | up to 97 % |
| Shutdown Current | < 1 µA |
| Package | 14‑pin 2 mm × 3 mm DFN |
| Operating Temperature Range | -40 °C to +85 °C |
| LED Short‑Circuit Current Limit | 1.0 mA |
| Flash Timer | 800 ms |
| Leadframe Finish | Green Cu Sn |
| Part Number | AS6533DRN |
The device operates from 2.7 V to 5.0 V.
Each channel can deliver up to 1.0 A in flash mode.
The shutdown current is less than 1 µA.
It is supplied in a 14‑pin 2 mm × 3 mm DFN package.