IR3856MTR1PBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3856MTR1PBF is a synchronous buck regulator IC from the SupIRBuck series, manufactured by Infineon Technologies. It operates with an input voltage range of 1.5 V to 21 V and provides a single adjustable output ranging from 0.7 V to 18.9 V. The device supports a maximum continuous output current of 6 A. It features a programmable switching frequency between 225 kHz and 1.65 MHz. The component is housed in a 17-PowerVQFN package (5x6 mm) and is rated for junction temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification topology for high efficiency
• Programmable switching frequency allows optimization for size and performance
• Adjustable output voltage via external resistor divider
• Built-in thermal protection and power good indication

Voltage Regulators - DC DC Switching Regulators Applications

• Data processing systems
• Point-of-load regulation for digital logic
• Industrial control power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MTR1PBF against the official datasheet to confirm pinout and electrical characteristics. Confirm availability status as some listings indicate discontinuation. Ensure ESD handling protocols are followed due to moisture sensitivity level 2 requirements during storage and assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, single-phase solution is required for moderate current loads up to 6 A. The wide input voltage range suits various bus architectures. Compare against higher current models like the IR38064 if load demands exceed 6 A. Consider the fixed-frequency alternatives if frequency jitter is a concern.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SupIRBuck family of integrated voltage regulators designed for space-constrained applications. It combines the controller, drivers, and power MOSFETs into a single small footprint. The series targets efficient power delivery for processors and memory in embedded systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible upgrades within the same package family. Verify that any substitute maintains the 6 A current rating and 21 V input limit. Cross-reference thermal dissipation capabilities in the 17-PowerVQFN form factor.