AP1521 Overview
Key Specifications
Package: LSSOP
Length: 2.85 mm
Width: 1.6 mm
Max Operating Temp: 85 °C
Description
The AP1521 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-Ion cell.
Key Features
- Inherently Matched LED Current
- Drives Up to Four LEDs from a 3.2V Supply
- Drives Up to Six LEDs from a 5V Supply
- High Efficiency: 84% Typical
- Fast 1MHz Switching Frequency
