LM43603PWPR

Voltage Regulators - DC DC Switching Regulators Overview

The LM43603PWPR is a synchronous step-down DC/DC converter from Texas Instruments. It operates with an input voltage range of 3.5V to 36V and delivers up to 3A output current. The device features an adjustable switching frequency between 200kHz and 2.2MHz, allowing for optimization of efficiency and external component size. Output voltage is adjustable from 1V to 28V. It utilizes a 16-pin PowerTSSOP package with exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Adjustable switching frequency supports design flexibility for size and performance trade-offs
• Wide input voltage range accommodates various power supply architectures
• Built-in protection mechanisms ensure robust operation under fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated power rails
• Point-of-load regulation for digital signal processors and microcontrollers
• Battery-powered equipment benefiting from low quiescent current operation
• Embedded systems needing compact buck converter solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as PWPR against official Texas Instruments documentation to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Cross-reference datasheet revision history for any recent symbolization or assembly changes that may impact integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A synchronous buck converter is required within a 36V input window. Ensure the application demands an adjustable output voltage rather than fixed options. Consider the 16-PowerTSSOP package constraints for PCB layout and thermal dissipation needs. Validate that the target switching frequency falls within the supported 200kHz to 2.2MHz range for optimal inductor selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family of regulators, designed for ease of use with minimal external components. It shares architectural similarities with other LM4360x series parts but offers specific current and package configurations. The product line targets industrial and commercial applications requiring reliable power conversion in space-constrained environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM43603PWPT is available in a TSSOP-16 package without the exposed pad variant. LM43602PWPR provides similar functionality with a 2A output current rating. Automotive qualified versions include LM43603AQPWPRQ1. Verify pinout compatibility and thermal characteristics before substitution.