KA34063ADTF

Voltage Regulators - DC DC Switching Regulators Overview

The KA34063ADTF is a DC-DC switching regulator manufactured by Fairchild Semiconductor, now part of onsemi. It supports buck, boost, and inverting topologies with an input voltage range of 3 V to 40 V. The device provides a single adjustable output capable of delivering up to 1.5 A switch current. It operates within a temperature range of 0°C to +70°C and is housed in an 8-SOIC surface-mount package measuring 5 x 4 x 1.5 mm.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple converter topologies including step-down, step-up, and inverting configurations.
• Integrates a high-current internal switch for direct drive capability.
• Features adjustable switching frequency to optimize external component selection.
• Includes built-in thermal shutdown and current limiting protection mechanisms.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered equipment requiring efficient voltage conversion
• Simple DC-to-DC converter circuits
• Dc-to-Dc inverters for negative voltage generation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the component status as obsolete or end-of-life before procurement planning. Confirm that alternative sources are available through authorized distributors or secondary markets. Ensure compatibility with existing design specifications when sourcing replacements from different manufacturers. Check for RoHS compliance documentation if required for specific regulatory standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a versatile single-inductor solution supporting multiple voltage conversion modes. Consider the 1.5 A switch current limit when designing power stages. Evaluate the SOIC-8 package constraints for PCB layout. Verify that the operating temperature range meets the environmental requirements of the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the widely used 34063 family of switching regulators. It is functionally equivalent to the MC34063 series produced by other semiconductor manufacturers. The KA prefix typically denotes the Fairchild/onsemi variant of this standard architecture. It serves as a cost-effective solution for low-to-medium power conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers include MC34063AP1G and MC34063ABD-TR. These alternatives offer similar electrical characteristics and pinouts. Verify package compatibility and thermal performance when substituting.