A4491 Overview
Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4491 provides three high current, high performance, switching regulator outputs in a single package, saving space, cost and ponent count. High frequency switching allows selection of inexpensive inductors and small ceramic output capacitors. The turn-on cycles of the regulators are interleaved...
A4491 Key Features
- Three buck converters in a single package
- 4.5 to 23 V input voltage range
- 550 kHz fixed frequency
- Multiphase switching for smaller ponents and
- Independent control of each converter for sequencing and
- Power-on-reset flag with adjustable delay
- Internal pensation to minimize ponents and
- 4 × 4 mm QFN Package, small PCB footprint