MIC28514T-E/PHA

Voltage Regulators - DC DC Switching Regulators Overview

The MIC28514T-E/PHA is a synchronous buck regulator from Microchip Technology featuring Hyper Speed Control adaptive on-time architecture. It supports an input voltage range of 4.5V to 75V and delivers up to 5A output current. The adjustable output voltage spans from 600mV to 32V with a single output channel. Operating frequencies are adjustable between 270kHz and 800kHz. The device functions within a temperature range of -40°C to +125°C and is housed in a VQFN-EP-32 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Adaptive on-time control architecture for fast transient response
• Wide input voltage capability supporting high-voltage systems
• Adjustable switching frequency for optimization

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supplies
• Telecommunications infrastructure
• High-voltage point-of-load regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix PHA against the official Microchip datasheet to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the required tape and reel quantity. Cross-reference the manufacturer number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status through the latest product specification document before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 75V is required alongside high efficiency. The adaptive on-time control offers advantages over fixed-frequency PWM in dynamic load scenarios. Compare the 5A current rating against system peak demands. Consider the VQFN-EP-32 package for thermal performance in compact designs. Evaluate the external soft start requirement against system inrush constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MIC2851x family of synchronous buck regulators. It shares architectural similarities with the MIC28515 and MIC28516, differing primarily in current ratings and specific control features. The family utilizes Hyper Speed Control technology for improved transient response compared to traditional voltage-mode controllers.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MIC28515T-E/PHA offers similar topology but with different current handling characteristics. Verify pin compatibility and thermal requirements when substituting. Check if the target application requires the specific 5A rating or if higher/lower current variants are more suitable.