Microchip Technology MIC24097 Buck Converters

Microchip Technology MIC24097 Buck Converters implement an exceptional adaptive on-time control architecture. The constant-frequency, synchronous buck converter offers a 4.5V to 20V input supply range and a programmable switching frequency of up to 800kHz. The output voltage of the MIC24097 is adjustable down to 0.6V with a guaranteed accuracy of ±1%.

The Microchip MIC24097 Converters are housed in a 39-pin 6mm x 7mm VQFN package, with a -40°C to +125°C junction operating temperature range.

Features

Input voltage range of 4.5V to 20V (optimized for 12V bus)
Adjustable output from 0.6V to 12V (also limited by duty cycle)
High current capability of 20A
Adaptive constant on-time control
Output sense for tight voltage regulation
0.6V internal reference with ±1% accuracy (±0.5% over -40°C to +105°C)
Up to 800kHz switching frequency
High-voltage internal LDO for single supply operation
Supports start-up into pre-bias output

Internal compensator
Precision enable function
Programmable HLL/CCM operation using mode pin
Programmable soft start time
Droop feature to support Adaptive Voltage Positioning (AVP) for improved load transient response
Hiccup short circuit protection and programmable current limit
Thermal shut down with Hysteresis
Compact size of 6mm x 7mm 39-Pin QFN
-40°C to +125°C junction temperature range