MIC22400 Series

4MHz 4A Synchronous Buck Regulator w/Programmable Freq. & Power Good

Catalog

4MHz 4A Synchronous Buck Regulator w/Programmable Freq. & Power Good

Part	Voltage - Input (Min)	Voltage - Output (Max)	Output Configuration	Function	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Mounting Type	Frequency - Switching	Number of Outputs	Current - Output	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Package Width	Package Features	Package Name	Package Length	Voltage - Input (Max)	Output Type	Package / Case
Microchip Technology MIC22400YTSE-TR	2.6 V	5.5 V	Positive	Step-Down	Yes	0.7 V	Surface Mount	1 MHz	1	4 A	125 °C	-40 °C	Buck	4.4 mm	Exposed Pad	20-TSSOP 20-TSSOP-EP	0.173 in	5.5 V	Adjustable
Microchip Technology MIC22400YML-TR	2.6 V	5.5 V	Positive	Step-Down	Yes	0.7 V	Surface Mount	1 MHz	1	4 A	125 °C	-40 °C	Buck	4 mm		20-MLF® 20-MLFÛ	3 mm	5.5 V	Adjustable	20-MLF® 20-MLFÛ 20-VFQFN Exposed Pad
Microchip Technology MIC22400YTSE	2.6 V	5.5 V	Positive	Step-Down	Yes	0.7 V	Surface Mount	1 MHz	1	4 A	125 °C	-40 °C	Buck	4.4 mm	Exposed Pad	20-TSSOP 20-TSSOP-EP	0.173 in	5.5 V	Adjustable

Catalog

4MHz 4A Synchronous Buck Regulator w/Programmable Freq. & Power Good

Description

The MIC22400 is a high-efficiency, 4A integrated switch synchronous buck (step-down) regulator. The MIC22400 is optimized for highest efficiency, achieving over 90% efficiency while still switching at 1MHz 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. The output voltage can be adjusted down to 0.7V to address all low-voltage power needs. The 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. The Ramp Control™ (RC) pin allows the device to be connected to another MIC22400 family of products to keep the output voltages within a certain ∆V on start-up. The MIC22400 is thermally-enhanced 20-pin ePad TSSOP with a junction operating range from -40°C to +125°C.