KA79M15

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

The KA79M15 is a monolithic integrated circuit designed as a fixed voltage negative regulator within the KA79MXX series. It provides a nominal output of -15V with an output current capability exceeding 0.5A. The device features internal thermal overload protection and short circuit current limiting, ensuring robust operation under fault conditions. It operates over a temperature range of 0°C to +125°C and accepts input voltages up to -35V.

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

• Internal thermal overload protection prevents damage during overheating events
• Internal short circuit current limiting safeguards against output faults
• Output transistor safe area compensation ensures stable performance

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

• Fixed output negative voltage regulation circuits
• Power supply systems requiring medium current negative rails
• Electronic equipment utilizing TO-220 or D-PAK packages for heat dissipation

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

Verify manufacturer origin as this component was originally produced by Fairchild Semiconductor. Confirm package type availability (TO-220 or D-PAK) matches design requirements. Ensure compliance with RoHS standards if applicable to the target application environment. Check for updated datasheets reflecting any manufacturing transitions.

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

Select based on required negative voltage level (-15V) and current demand above 0.5A. Consider thermal management needs given the junction-to-case resistance. Evaluate input voltage headroom relative to the dropout characteristics at maximum load. Choose between through-hole or surface-mount packaging based on board layout constraints.

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

Part of the KA79MXX series of 3-terminal medium current negative voltage regulators. Includes variants for other fixed outputs like -5V, -6V, -8V, -12V, -18V, and -24V. Designed for general-purpose regulation applications where reliability and simplicity are prioritized.

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

LM79M05 is listed in ordering information but specifies -5V output; verify electrical compatibility for -15V replacement. Other KA79Mxx series members share similar features but differ in output voltage. Cross-reference pinouts and thermal characteristics when substituting.

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

What is the maximum input voltage for the KA79M15?

The absolute maximum input voltage is -35V.

Does the KA79M15 require external components for basic operation?

No external components are required for basic fixed voltage regulation, though capacitors may be needed for stability and transient response improvement.

What protection features are included in the KA79M15?

It includes internal thermal overload protection, internal short circuit current limiting, and output transistor safe area compensation.