KA78M05RTM

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

The KA78M05RTM is a three-terminal positive voltage regulator from the KA78M05 series, manufactured by onsemi. It provides a fixed nominal output voltage of 5 V with a maximum output current capability of 0.5 A. The device accepts an input voltage range from 10 V to 35 V and operates within a junction temperature range of -40°C to +125°C. It utilizes a D-PAK (TO-252) surface-mount package with three leads. Electrical characteristics include a line regulation of 100 mV and load regulation of 100 mV at 25°C.

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 current flow to prevent damage during fault conditions.
• Output transistor safe operating area (SOA) protection ensures reliability under varying load stresses.

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

• Fixed-output linear power supply circuits
• Constant-current source configurations
• Voltage reference applications

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

Verify the specific ordering suffix RTM to confirm the tape and reel packing method required for automated assembly processes. Confirm that the component meets RoHS compliance standards if restricted substances are mandated for your manufacturing environment. Ensure compatibility with the D-PAK footprint dimensions specified in the datasheet physical drawings before finalizing procurement orders.

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

Select this component when a fixed 5 V output is required with a maximum load current of 0.5 A. The D-PAK package is suitable for surface-mount applications where space constraints exist. Verify that the input voltage remains within the 10 V to 35 V range to ensure proper regulation and avoid exceeding absolute maximum ratings.

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

This part belongs to the KA78M05 series of three-terminal positive regulators, which also includes variants like LM78M05 and MC78M05. The series is designed for general-purpose voltage regulation tasks. The KA78M05RTM specifically denotes the version packaged in D-PAK format with tape and reel delivery, distinguishing it from through-hole TO-220 alternatives.

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

LM78M05RTM

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

What is the function of the output capacitor in the typical application circuit?

While not strictly required for stability, adding an output capacitor improves the transient response of the regulator.

Is an input capacitor necessary for all installations?

An input capacitor is required if the regulator is located an appreciable distance from the power supply filter.