KA79L05AZTA

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

The KA79L05AZTA is a fixed negative linear voltage regulator from the KA79LXXA series, manufactured by onsemi (formerly Fairchild Semiconductor). It provides a nominal output voltage of -5V with ±5% tolerance. The device supports a maximum output current of 100mA and operates within an ambient temperature range of 0°C to +125°C. Key electrical specifications include a line regulation of 150mV and load regulation of 60mV at standard test conditions. It features internal thermal overload protection and short-circuit current limiting for robust operation.

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

• Integrated thermal overload protection shuts down the circuit during excessive power overload conditions.
• Internal short-circuit current limiting protects the device against fault currents.
• Requires no external components for basic fixed-voltage regulation functionality.

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

• Negative voltage rail generation in dual-supply electronic circuits
• Biasing stages requiring stable negative potential
• Low-current analog signal processing applications

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

Verify that the ordering suffix 'Z' corresponds to the TO-92 package configuration as specified in the official datasheet. Confirm that the manufacturer designation aligns with onsemi or its predecessor entities, as legacy documentation may reference Fairchild Semiconductor. Ensure the component meets the required operating temperature range of 0°C to +125°C for your specific application environment.

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

Select this component when a fixed -5V negative supply is required for low-current loads up to 100mA. Consider the dropout voltage characteristics relative to your input source. Verify that the TO-92 through-hole package fits your board layout constraints. Ensure input voltage remains sufficiently above the output voltage to maintain regulation under all load conditions.

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

This part belongs to the KA79LXXA family of 3-terminal negative voltage regulators. The series includes variants for outputs ranging from -5V to -24V. The 'A' suffix indicates ±5% output voltage tolerance. The 'Z' suffix denotes the TO-92 package style. These regulators are designed for general-purpose negative voltage regulation in consumer and industrial electronics.

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

Compatible substitutes within the same series include KA79L08AZ, KA79L12AZ, KA79L15AZ, KA79L18AZ, and KA79L24AZ, provided the different output voltages meet system requirements. Other packages such as 8-SOP (KA79L05AD) or SOT-89 (KA79L05AM) offer pin-compatible alternatives if surface-mount technology is preferred.