Microchip Technology MIC22400
MIC22400 is a high-efficiency, 4A integrated switch synchronous buck (step-down) regulator. MIC22400 is optimized for highest efficiency, achieving over 90% efficiency while still switching at 1 MHz over a broad load range. The ultra high-speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low-voltage ASICs.FEATURES
● Input Voltage Range: 2.6V to 5.5V● Output Voltage Adjustable Down to 0.7V
● Output Load Current Up to 4A
● Full Sequencing and Tracking Ability
● Power-On-Reset (POR)
● Efficiency >90% Across a Broad Load Range
● Programmable Frequency 300 kHz to 4 MHz
● Easy Ramp Control (RC) Compensation
● Ultra-Fast Transient Response
● 100% Maximum Duty Cycle
● Fully Integrated MOSFET Switches
● Micropower Shutdown
● Thermal-Shutdown and Current-Limit Protection
● 20-Pin 3 mm x 4 mm VQFN
● –40°C to +125°C Junction Temperature Range
APPLICATIONS
● High Power Density Point-of-Load Conversion● Servers and Routers
● DVD Recorders
● Computing Peripherals
● Base Stations
● FPGAs, DSP, and Low-Voltage ASIC Power
GENERAL DESCRIPTION
The output voltage can be adjusted down to 0.7V to address all low-voltage power needs. MIC22400 gives a full range of sequencing and tracking options. The EN/DLY pin combined with the Power-On-Reset (POR) pin allows multiple outputs to be sequenced in any way on turn-on and turn-off.