MIC45116 Series

20V/6A Synchronous Step Down Regulator Power Module w/Hyper Light Load™, Hyper Speed Control™

Catalog

20V/6A Synchronous Step Down Regulator Power Module w/Hyper Light Load™, Hyper Speed Control™

Part	Output Type	Number of Outputs	Topology	Mounting Type	Output Configuration	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Function	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Frequency - Switching	Current - Output	Voltage - Output (Max) [Max]	Package / Case	Voltage - Output (Min/Fixed)
Microchip Technology MIC45116-1YMP-TR	Adjustable	1	Buck	Surface Mount	Positive	52-QFN (8x8)	-40 °C	125 ¯C	Step-Down	4.75 V	20 V	600 kHz	6 A	17 V	52-PowerBFQFN	0.8 V
Microchip Technology MIC45116-1YMP-T1	Adjustable	1	Buck	Surface Mount	Positive	52-QFN (8x8)	-40 °C	125 ¯C	Step-Down	4.75 V	20 V	600 kHz	6 A	17 V	52-PowerBFQFN	0.8 V
Microchip Technology MIC45116-2YMP-T1	Adjustable	1	Buck	Surface Mount	Positive	52-QFN (8x8)	-40 °C	125 ¯C	Step-Down	4.75 V	20 V	600 kHz	6 A	17 V	52-PowerBFQFN	0.8 V

Catalog

20V/6A Synchronous Step Down Regulator Power Module w/Hyper Light Load™, Hyper Speed Control™

Key Features

• + Up to 6A output current

• + >93% peak efficiency

• + Output voltage: 0.8V to 85% of input with ±1% accuracy

• + Fixed 600kHz switching frequency

• + Enable input and open-drain power good output

• + Hyper Speed Control®(MIC45116-2) architecture enables fast transient response

• + HyperLight Load® (MIC45116-1) improves light load efficiency

• + Supports safe start-up into pre-biased output

• + -40°C to +125°C junction temperature range

• + Thermal-shutdown protection

• + Short-circuit protection with hiccup mode

• + Adjustable current limit

• + Available in 52-pin 8mm x 8mm x 3mm QFN package

Description

MIC45116 is a synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC/DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package; simplifying the design and layout process for the end user. This highly integrated solution expedites system design and improves product time-to-market. The internal MOSFETs and inductor are optimized to achieve high efficiency at a low output voltage. The fully optimized design can deliver up to 6A current under a wide input voltage range of 4.75V to 20V without requiring additional cooling. The MIC45116-1 uses HyperLight Load® (HLL) which maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous-mode operation. The MIC45116-2 uses Hyper Speed Control® architecture which enables ultra-fast load transient response, allowing for a reduction of output capacitance. The MIC45116 offers 1% output accuracy that can be adjusted from 0.8V to 85% of the input (PVIN) with two external resistors. Additional features include thermal-shutdown protection, adjustable current limit, and short-circuit protection. The MIC45116 allows for safe start-up into a pre-biased output.