KA78M05RTF

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The KA78M05RTF is a three-terminal positive voltage regulator manufactured by onsemi, operating within a junction temperature range of -40°C to +125°C. It provides a fixed output voltage of 5 V with a maximum output current of 0.5 A. The device utilizes a D-PAK (TO-252) surface-mount package and supports an input voltage up to 35 V. Electrical characteristics include a line regulation of 100 mV at 200 mA and a load regulation of 100 mV across the full current range. Quiescent current typically measures 6.0 mA, while ripple rejection reaches 80 dB at 120 Hz.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated thermal overload protection safeguards against excessive heat generation during operation.
• Built-in short-circuit protection limits output current to prevent damage under fault conditions.
• Output transistor safe operating area (SOA) protection ensures stability across varying load profiles.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Fixed-output linear power supply circuits
• Constant-current regulator configurations
• Pre-regulator stages for switching converters

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific ordering suffix 'RTF' against official onsemi documentation to confirm tape-and-reel packaging specifications. Confirm that the component meets RoHS requirements for your target market. Ensure compatibility with the D-PAK footprint in your PCB layout design before finalizing procurement decisions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 5 V output is required with moderate current demands up to 0.5 A. The D-PAK package offers a compact surface-mount solution suitable for space-constrained designs. Consider the dropout voltage and thermal resistance characteristics relative to your expected input voltage and ambient operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the KA78M series of three-terminal positive regulators, originally developed by Fairchild Semiconductor prior to its integration into onsemi. The series includes variants with different output voltages and packages, such as the TO-220 through-hole options. The KA78M05 specifically denotes the 5 V fixed output version within this established regulator family.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LM78M05 and MC78M05 are electrically equivalent parts within the same datasheet specification. Verify pinout compatibility and package dimensions when substituting these alternatives in existing designs.