KA34063ADTF

Voltage Regulators - DC DC Switching Regulators Overview

The KA34063ADTF is a monolithic DC-DC switching regulator IC manufactured by onsemi, housed in an 8-SOIC surface-mount package. It supports buck, boost, and inverting topologies with an adjustable output voltage. The device operates from a supply input range of 3 V to 40 V and provides a switch current capability exceeding 1.5 A. Internal features include a temperature-compensated reference, comparator, duty cycle-controlled oscillator, and active current limiting. The switching frequency is adjustable from 100 Hz to 100 kHz via external components.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-current output switch capable of delivering over 1.5 A for efficient power conversion
• Includes internal temperature-compensated reference and active current limiting circuitry for stable operation
• Supports versatile DC-DC conversion topologies including step-down, step-up, and voltage inversion

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered equipment requiring efficient voltage regulation
• General-purpose DC-to-DC converters
• Step-down, step-up, and inverting converter circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the part's discontinued status. Confirm that the received unit matches the specific KA34063ADTF designation and packaging format. Review official datasheets for handling precautions related to electrostatic discharge and thermal management during installation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a simple, low-component-count solution for non-isolated DC-DC conversion. Ensure the application input voltage remains within the 3 V to 40 V range and that peak load currents do not exceed the internal switch limits. Consider the operating temperature range and required switching frequency when designing external passive components.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the widely recognized MC34063 family of switching regulators, originally developed by Motorola and now produced by various manufacturers including onsemi. The KA34063ADTF represents the surface-mount variant of this legacy control circuit, maintaining functional compatibility with earlier through-hole versions while offering compact PCB integration capabilities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include MC34063ACD-TR and MC34063ECD-TR from STMicroelectronics. Other compatible options are MC34063ABD-TR and MC34063EBD-TR from STMicroelectronics. Verify pinout and electrical specifications against target designs before implementation.