MC33167TH

Voltage Regulators - DC DC Switching Regulators Overview

The MC33167TH is a high-performance fixed-frequency power switching regulator from onsemi, designed for DC-to-DC conversion. It supports step-down (buck), step-up (boost), and voltage-inverting configurations with minimal external components. The device features an internal oscillator operating at 72 kHz and provides an output switch current exceeding 5.0 A. It operates from an input voltage range of 7.5 V to 40 V and includes a precision 2% reference. Key protection mechanisms include cycle-by-cycle current limiting, undervoltage lockout with hysteresis, and internal thermal shutdown. The component is housed in a 5-lead TO-220 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports buck, boost, and inverting topologies with minimum external component count
• Integrated 72 kHz fixed-frequency oscillator with on-chip timing
• Includes comprehensive protection against overcurrent, undervoltage, and overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Step-down DC-DC converter circuits
• Voltage-inverting power supply designs
• Step-up power regulation systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TH' against the official onsemi datasheet to confirm leadform options and package variations. Ensure compatibility with required thermal management solutions given the through-hole TO-220 form factor. Confirm RoHS compliance status for the specific manufacturing batch prior to integration into final assemblies.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when designing systems requiring high output current above 5.0 A in compact through-hole layouts. It is suitable for applications needing flexible topology support including inversion or boosting. Consider the 72 kHz switching frequency for trade-offs between component size and electromagnetic interference. Evaluate thermal dissipation requirements due to the power handling capabilities inherent in the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MC33167 series of power switching regulators manufactured by onsemi. The series is engineered for cost-effective implementation in various DC-DC converter architectures. It shares core functional characteristics with other variants like the MC33167T and MC33167TVG, differing primarily in packaging and leadform specifications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MC33167T

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the MC33167TH?

The maximum input voltage is 40 V.

Does the MC33167TH support negative output voltages?

Yes, it can be configured for voltage-inverting applications to produce negative outputs.