21-0065PBF

Voltage Regulators - DC DC Switching Regulators Overview

The Infineon Technologies 21-0065PBF is a synchronous buck switching regulator IC designed for high-current, low-voltage point-of-load conversion. It features a positive adjustable output voltage range from 0.6V to 12V with a maximum continuous output current of 25A. The device operates within a switching frequency range of 225kHz to 1.65MHz and supports an operating junction temperature from -40°C to 125°C. Packaged in a 17-LLGA format, it integrates MOSFET drivers, a bootstrap diode, remote sense amplifier, and power-good output functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates MOSFET drivers, bootstrap diode, remote sense amplifier, and power-good output for simplified design
• Supports synchronous rectification for improved efficiency in high-current applications
• Features adjustable switching frequency ranging from 225kHz to 1.65MHz
• Designed specifically for high-current, low-voltage point-of-load conversion

Voltage Regulators - DC DC Switching Regulators Applications

• High-current point-of-load conversion systems
• Low-voltage power distribution networks
• Industrial equipment requiring stable DC-DC regulation
• Telecommunications infrastructure power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific package variant and manufacturing date code upon order confirmation. Ensure that the procurement channel provides original manufacturer documentation or traceability records. Confirm RoHS compliance status as indicated by the PBF suffix. Cross-reference the part number with official Infineon databases to validate authenticity before finalizing purchase agreements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring up to 25A output current with precise voltage regulation between 0.6V and 12V. Consider the integrated remote sense amplifier for load-line compensation requirements. Evaluate the thermal performance capabilities within the -40°C to 125°C operating range against your system's heat dissipation constraints. Ensure compatibility with the desired switching frequency range for EMI management.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Infineon's family of synchronous buck regulators, targeting efficient power management solutions. It replaces older asynchronous designs by integrating internal MOSFET drivers and synchronous rectification. The 17-LLGA package offers a compact footprint suitable for dense PCB layouts in modern electronic devices requiring robust DC-DC conversion capabilities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Infineon substitution guides for compatible alternatives. Verify pin-to-pin compatibility and electrical parameter equivalence if considering cross-brand replacements. Ensure that any substitute maintains the same output current capability and voltage adjustment range.