MAX42405/MAX42406 Synchronous Buck Converters

Analog Devices Inc. MAX42405/MAX42406 Synchronous Buck Converters are tiny, 36V, 5A/6A synchronous buck converters with integrated high- and low-side switches. Delivering up to 6A, the ICs feature wide input voltages ranging from 4.5V to 36V. Voltage quality can be monitored by observing the PGOOD signal. The ICs can operate in dropout by running at a very high duty cycle, making it ideal for industrial applications. Available in a small 3.5mm x 3.75mm, 17-pin Flip-Chip Quad Flat No lead (FC2QFN) package, The MAX42405/MAX42406 converters use very few external components.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
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Output Voltage
Output Current
Number of Outputs
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Maximum Operating Temperature
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Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
17In Stock
840Expected 4/20/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-17 Buck 800 mV to 10 V 5 A 1 Output 20 uA 400 kHz - 40 C + 125 C MAX42405 Tray
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
777In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-17 Buck 800 mV to 10 V 6 A 1 Output 20 uA 1.5 MHz - 40 C + 125 C MAX42406 Tray
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
840Expected 6/1/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-17 Buck 800 mV to 10 V 5 A 1 Output 20 uA 1.5 MHz - 40 C + 125 C MAX42405 Tray
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
2.430Expected 6/10/2026
Min.: 1
Mult.: 1
: 2.500

SMD/SMT QFN-17 Buck 800 mV to 10 V 6 A 1 Output 20 uA 400 kHz - 40 C + 125 C MAX42406 Reel, Cut Tape
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
2.500Expected 4/20/2026
Min.: 1
Mult.: 1
: 2.500

SMD/SMT QFN-17 Buck 800 mV to 10 V 6 A 1 Output 20 uA 1.5 MHz - 40 C + 125 C MAX42406 Reel, Cut Tape
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
36.522Factory Stock Available
More Info Available
Min.: 420
Mult.: 420

SMD/SMT QFN-17 Buck 800 mV to 10 V 6 A 1 Output 20 uA 400 kHz - 40 C + 125 C MAX42406 Tray
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

SMD/SMT QFN-17 Buck 800 mV to 10 V 5 A 1 Output 20 uA 400 kHz - 40 C + 125 C MAX42405 Reel
Analog Devices / Maxim Integrated Switching Voltage Regulators 36V, 5A/6A Fully Integrated Synchronous
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1
Mult.: 1
: 2.500

SMD/SMT QFN-17 Buck 800 mV to 10 V 5 A 1 Output 20 uA 1.5 MHz - 40 C + 125 C MAX42405 Reel, Cut Tape