KA78R33CYDTU

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

The KA78R33CYDTU is a fixed-output linear voltage regulator manufactured by onsemi, providing a stable 3.3V DC output with a maximum load current of 1A. It operates within an input voltage range of 4V to 35V and features a low dropout voltage of up to 500mV. The device is housed in a TO-220F-4L (Forming) through-hole package, suitable for board mounting. It supports a power dissipation of 15W and functions reliably across an operating temperature range of -20°C to +80°C.

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

• Provides a fixed positive 3.3V output with 1A continuous current capacity
• Features ultra-low dropout voltage performance for efficient regulation
• Includes internal thermal overload protection and safe operating area protection
• Designed for through-hole mounting in compact form factor packages

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

• Battery-powered equipment requiring stable low-voltage regulation
• Consumer electronics with strict power management needs
• Industrial control systems utilizing linear regulation
• General-purpose power supply circuits

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

Verify the specific suffix 'CYDTU' against official onsemi documentation to confirm the TO-220F-4L forming lead package variant. Ensure compatibility with existing PCB footprints designed for this specific through-hole configuration. Cross-reference datasheet revisions to confirm pinout consistency and thermal characteristics match design requirements before procurement.

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

Select this component when a fixed 3.3V output is required with up to 1A load capability. It is appropriate for applications where low noise and simple implementation are prioritized over high efficiency. Consider the thermal management requirements due to the 15W power dissipation rating and the specific TO-220F-4L package constraints for heat sinking.

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

This part belongs to the KA78R series of low-dropout regulators from onsemi. It is functionally similar to other fixed-output LDOs but distinguished by its specific package type and electrical parameters. The series is designed for general-purpose voltage regulation tasks in various electronic devices.

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

Check for direct substitutes like KA78R33CTU or KA78R33CYTGU if available, ensuring package and pinout compatibility. Verify that alternative parts meet the same 1A current and 3.3V output specifications.