KA78R08CTU

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

The KA78R08CTU is a fixed positive low-dropout voltage regulator manufactured by Fairchild Semiconductor, providing a stable 8 V output at up to 1 A. It operates within an input voltage range of 9 V to 25 V and maintains a maximum dropout voltage of 500 mV at full load. The device features a TO-220-4 through-hole package with a power dissipation rating of 15 W. Electrical specifications include a line regulation of 2.5% and load regulation of 2%. It functions reliably across a temperature range of -20°C to +80°C.

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

• Integrated peak current protection and thermal shutdown circuits for enhanced reliability
• Overvoltage and short circuit protection mechanisms safeguard the device and load
• Includes an output disable function for system control and power management

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

• Constant voltage power sources for electronic equipment
• Battery-powered systems requiring efficient linear regulation
• General-purpose power supply modules in industrial applications

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

Verify component authenticity due to potential obsolescence or legacy status. Confirm RoHS compliance details as historical records may vary. Check for alternative sourcing channels since standard distribution availability is limited. Ensure the TO-220-4 package matches your PCB footprint requirements before procurement.

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

Select this regulator when a fixed 8 V output is required with high current capability. The TO-220-4 package supports significant heat dissipation compared to smaller surface-mount options. Consider the minimum 9 V input requirement and 500 mV dropout characteristic for headroom calculations. Verify that the operating temperature range meets your environmental constraints.

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

This component belongs to the KA78RXXC series of 1A low-dropout voltage regulators. The series offers various fixed output voltages including 3.3 V, 5 V, 9 V, 12 V, and 15 V variants. All members share similar protection features and the TO-220-4 lead full-mold package design for consistent thermal performance.

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

Direct substitutes within the same family include KA78R05CTU (5 V), KA78R09CTU (9 V), KA78R12CTU (12 V), and KA78R15CTU (15 V). These parts share identical pinouts and protection features but differ only in output voltage. Cross-manufacturer equivalents require verification of pin compatibility and thermal characteristics.