FAN53555 Datasheet (PDF) Download
Fairchild Semiconductor
FAN53555

Overview

The FAN53555 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5 V to 5.5 V. The output voltage is programmed through an I2C interface capable of operating up to 3.4 MHz.

  • Fixed-Frequency Operation: 2.4 MHz
  • Best-in-Class Load Transient
  • Continuous Output Current Capability: 5 A
  • Pulse Current Capability: 6.5 A (05 Option)
  • 2.5 V to 5.5 V Input Voltage Range
  • Digitally Programmable Output Voltage: - 00/01/03/05/08/18 Options: 0.6-1.23 V in 10 mV Steps - 04/042/09/ Options: 0.603-1.411 V in 12.826 mV Steps - 23 Option: 0.60-1.3875 V in 12.5 mV Steps - 24 Option: 0.603-1.420 V in 12.967 mV Steps - 13 Option: 0.8-1.43 V in 10 mV Steps
  • Programmable Slew Rate for Voltage Transitions
  • I2C-Compatible Interface Up to 3.4 Mbps
  • PFM Mode for High Efficiency in Light Load
  • Quiescent Current in PFM Mode: 60 µA (Typical)