Maxim Integrated Switching Regulator, Surface Mount, 1.5 V dc, 3.3 V dc Output Voltage, 2.5 → 5.5V dc Input

Integration Reduces Power-Supply Footprint for Space-Constrained Designs
Dual-Output Synchronous Buck Regulators
Integrated Switches for 4A and 2A Output Currents
Programmable Switching Frequency from 500kHz to 4MHz
28-Pin TQFN Package (5mm x 5mm)
180° Out-Of-Phase Operation Reduces Input Ripple Current and Thus the Size of the Input Bypass Capacitors
Sophisticated Tracking/Sequencing Functions Facilitate Reliable Processor Operation
Digital Soft-Start and Soft-Stop for Tracking Applications
Digital Soft-Start into a Prebiased Load for Sequencing Applications
Sequencing or Coincident/Ratiometric Tracking
Flexible Enough for Use in a Range of Designs
2.5V to 5.5V Input Voltage Range
Output-Voltage Adjustable from 0.6V to VAVIN
External Compensation for Maximum Flexibility
100% Maximum Duty Cycle
Integrated Protection Features Save Space and Increase Reliability
Lossless, Cycle-by-Cycle Current Sensing
Thermal Shutdown and Hiccup-Mode Short-Circuit Protection
20μA Shutdown Current Extends Battery Life in Portable Applications
Applications
Automotive Multimedia
Multivoltage Supplies
Networking/Telecom
Power-Over-Ethernet (PoE) IP Phones
RFID Reader Cards