LM5000-3MTCX

Voltage Regulators - DC DC Switching Regulators Overview

The LM5000-3MTCX/NOPB is a high-voltage switch-mode regulator IC manufactured by Texas Instruments, designed for boost, flyback, and forward converter topologies. It operates with an input voltage range of 3.1V to 40V and provides a single adjustable output starting at 3.1V. The device supports a maximum switch voltage of 80V and delivers up to 1.35A of switch current. It features selectable switching frequencies of 300kHz or 700kHz. Packaged in a 16-TSSOP surface-mount case, it functions within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple power conversion topologies including boost, flyback, and forward configurations.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Automotive electronics operating within wide input voltage ranges
• General-purpose high-voltage step-up power supply designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number includes the suffix /NOPB to confirm lead-free compliance and specific package variant. Confirm the '3' designation aligns with the required switching frequency setting for your design. Ensure the 16-TSSOP footprint matches your PCB layout constraints before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require high input voltage tolerance up to 40V with a compact solution. Consider the 1.35A switch current limit for load requirements. Evaluate the need for external components to set the specific switching frequency between 300kHz and 700kHz based on efficiency and size trade-offs.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5000 family of high-voltage switch-mode regulators from Texas Instruments. It is distinct from other variants like the LM5000SD series which utilize WSON-16 packaging. The MTCX suffix indicates the specific TSSOP package and tape-and-reel shipping configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Texas Instruments application notes for pin-compatible alternatives within the same family if necessary.