IR3821MTRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The IR3821MTRPBF is a single-phase synchronous step-down DC-DC converter from Infineon Technologies. It integrates power MOSFETs and control circuitry in a compact package. The device supports an input voltage range up to 21V and provides a fixed minimum output of 0.6V, adjustable up to 12V. It delivers a maximum output current of 7A with a switching frequency of 600kHz. The component utilizes SMD/SMT installation style and is housed in a PQFN-16L (3x3) package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency
• Compact surface-mount packaging design
• Fixed internal feedback reference voltage

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load voltage regulation
• General-purpose step-down conversion
• Embedded system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the obsolete status before procurement as manufacturing may be discontinued. Confirm package compatibility and thermal requirements for your specific PCB layout. Check for available alternative components if long-term supply stability is required. Ensure compliance with RoHS standards if applicable to your project specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 7A output current in a small form factor. Consider the 600kHz switching frequency for balancing size and efficiency. Verify that the 21V maximum input voltage meets your system's supply constraints. Evaluate thermal performance given the integrated power stage design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SupIRBuck series of highly integrated regulators. It combines the controller and power switches into a single unit to reduce external component count. The technology focuses on simplifying design while maintaining performance for portable and embedded electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Review updated datasheets for any functional changes in successor models. Ensure electrical parameters match or exceed original requirements when substituting.