MIC22200 Datasheet | Microchip Technology

4 MHz 2A Synchronous Buck Regulator with Programmable Frequency Features - Input Voltage Range: 2.6V to 5.5V - Output Voltage Adjustable Down to 0.7V - Output Load Current Up to 2A - Full Sequencing and Tracking Ability - Easy RC pensation - Power-on-Reset (POR) Output - Efficiency >90% Across a Broad Load Range - Operating frequency: Programmable from 800 k Hz up to 4 MHz - Ultra-Fast Transient Response - 100% Maximum Duty Cycle - Fully Integrated MOSFET Switches - Micropower Shutdown - Thermal Shutdown and Current-Limit Protection - Available in 12-Pin 3 mm x 3 mm DFN - - 40°C to +125°C Junction Temperature Range Applications - High Power Density Point-of-Load Conversion - Servers and Routers - DVD Recorders and Multimedia Players - puting Peripherals - Base Stations - FPGAs, DSP, and Low Voltage ASIC Devices General Description The MIC22200 is a high-efficiency, 2A integrated switch synchronous buck (step-down) regulator. The MIC22200 switching frequency is programmable from 800 k Hz to 4 MHz, allowing the customer to optimize their designs either for efficiency or for the smallest footprint. The regulator achieves efficiencies as high as 95% while still switching at 1 MHz over a broad load range. The ultra high-speed control loops keep the output voltage within regulation even under the extreme transient load swings monly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs. The MIC22200 offers a full range of sequencing and tracking options. The EN/DLY pin, bined with the Power-On-Reset (POR) pin, allows multiple outputs to be sequenced in many ways during turn on and turn off. The RC (ramp control) pin allows the device to be connected to another device in the MIC22X00 family of products to keep the output voltages within a certain ∆V on start...