IR3840AMTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3840AMTRPBF is a synchronous buck regulator IC from Infineon Technologies, part of the SupIRBuck series. It operates with an input voltage range of 1.5 V to 16 V and provides an adjustable output voltage starting from 0.9 V up to 14.4 V. The device delivers a continuous output current of 14 A. It supports a switching frequency range between 225 kHz and 1 MHz. The component is housed in a 15-PowerVQFN package (PQFN 5x6) and is rated for operation temperatures from -40°C to +125°C TJ.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs within a single compact package to minimize solution size.
• Features adaptive on-time control architecture for fast transient response and stable operation across varying load conditions.
• Includes comprehensive protection mechanisms such as over-current protection and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for telecommunications infrastructure
• Voltage regulation for embedded computing systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against official documentation, as variations may exist. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure the ordering part number matches the specific tape and reel configuration required for your manufacturing process. Cross-reference the datasheet revision date to ensure compatibility with design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-current synchronous buck solution is required for point-of-load applications. The integrated power stage simplifies layout compared to discrete solutions. Consider the 14 A output capability and wide input voltage range for versatile system designs. Evaluate the thermal performance within the PQFN package for your specific PCB copper area constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to Infineon's SupIRBuck family of highly integrated DC/DC converters. These devices combine controller logic with power switches to reduce external component count. The IR3840 variant specifically targets applications requiring moderate current levels in space-constrained environments, offering a balance between performance and footprint efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible upgrades within the IR38xx series. Verify if newer revisions offer improved thermal characteristics or updated protection features. Ensure any substitute maintains the same output current rating and input voltage range requirements.