KA79M05RTF

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

The KA79M05RTF is a fixed negative voltage regulator from the KA79MXX series, manufactured by onsemi. It provides a nominal output voltage of -5 V with a maximum output current capability exceeding 0.5 A. The device operates within an input voltage range of -7 V to -25 V and maintains operation across a temperature range of 0 °C to +125 °C. Key electrical characteristics include a line regulation of 50 mV, load regulation of 100 mV, quiescent current of 3 mA, ripple rejection of 60 dB at 120 Hz, dropout voltage of 1.1 V at 500 mA, and peak current of 650 mA.

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

• Integrated thermal overload protection and internal short circuit current limiting for robust operation.
• Output transistor safe area compensation ensures stability under varying load conditions.
• Requires no external components for basic fixed voltage regulation functionality.

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

• Fixed negative voltage power supply circuits
• Electronic equipment requiring stable negative bias rails
• General-purpose linear regulation in industrial systems

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches design requirements, as suffixes indicate specific mechanical forms. Check for recent product change notifications regarding manufacturing site transitions or material updates. Ensure compliance with applicable environmental directives relevant to the procurement region before integration into final assemblies.

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

Select this component when a reliable -5 V negative rail is required for moderate current loads up to 500 mA. Consider the TO-220 package for superior thermal dissipation compared to surface-mount alternatives. Evaluate thermal resistance parameters against expected ambient temperatures to ensure junction temperatures remain within safe operating limits during continuous operation.

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

This part belongs to the KA79MXX family of three-terminal medium current negative voltage regulators. These monolithic integrated circuits are designed as fixed voltage regulators featuring internal current limiting, thermal shutdown, and safe area compensation. The series supports multiple output voltages including -5V, -6V, -8V, -12V, -15V, -18V, and -24V.

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

LM79M05 serves as a functional equivalent within the same regulatory family. MC79M05CTG offers similar specifications but utilizes a different package configuration. Verify pinout compatibility and thermal performance metrics before substituting these parts in existing designs.