MIC24046 Series

5A Pin-Programmable Buck Converter

Catalog

5A Pin-Programmable Buck Converter

Part	Function	Mounting Type	Supplier Device Package	Synchronous Rectifier	Output Type	Voltage - Input (Min) [Min]	Output Configuration	Voltage - Output (Min/Fixed)	Topology	Number of Outputs	Voltage - Input (Max) [Max]	Current - Output	Frequency - Switching	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]
Microchip Technology MIC24046YFL-TR	Step-Down	Surface Mount	20-QFN (3x3)		Programmable	4.5 V	Positive	0.7 V	Buck	1	19 V	5 A	400 kHz 565 kHz 790 kHz	3.3 V	-40 °C	125 ¯C

Catalog

5A Pin-Programmable Buck Converter

Key Features

• * 4.5V to 19V input voltage range

• * 5A (maximum) output current

• * High efficiency (>90%)

• * Pin-selectable output voltages:

• * 0.7V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V,

• 2.5V, and 3.3V

• * ±1% output voltage accuracy

• * Supports safe start-up with pre-biased output

• * Pin-selectable current limit and switching frequency

• * Internal soft-start and thermal shutdown protection

• * Hiccup-mode short-circuit protection

• * Available in a 20-pin 3mm x 3mm QFN package

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

Description

MIC24046 is a pin-programmable, high-efficiency, wide-input range, 5A, synchronous step-down regulator. The MIC24046 is perfectly suited for multiple-voltage rail application environments typically found in computing and telecommunication systems. It can be programmed by pin strapping various parameters, such as output voltage, switching frequency, and current-limit values. The pin-selectable switching frequency, valley-current-mode control technique, high-performance error amplifier, and external compensation allow for the best tradeoffs between high-efficiency and the smallest possible solution size. The MIC24046 is pin-out compatible with its I2C-programmable counterparts from the same family. The MIC24046 is available in a thermally-efficient, space-saving, 20-pin 3mm x 3mm QFN package with an operating junction temperature range of -40°C to +125°C.