LM20133MHE/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM20133MHE/NOPB is a synchronous buck regulator from Texas Instruments, designed for high-efficiency DC-DC conversion. It operates with an input voltage range of 2.95 V to 5.5 V and delivers up to 3 A output current. The device integrates a fixed switching frequency of 410 kHz, enabling the use of small external components. It supports an adjustable output voltage range from 0.8 V to 5 V. The regulator features power good indication and thermal shutdown protection. It is housed in a 16-pin HTSSOP package with an exposed pad for enhanced thermal performance.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for improved efficiency
• Input synchronization capability for noise reduction
• Compact PowerWise design minimizes solution size

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient step-down conversion
• Industrial control systems with low-voltage logic supplies
• Automotive infotainment and sensor modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'MHE' against your bill of materials, as it denotes specific tape-and-reel packaging and automotive-grade qualification options. Confirm that the operating temperature range of -40°C to +125°C meets your environmental requirements. Ensure the 16-pin HTSSOP footprint matches your PCB layout constraints before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages are limited to 5.5 V or lower and high efficiency at moderate currents is critical. The fixed 410 kHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the exposed pad requirement for thermal management during selection. Verify if the optional automotive grade qualification is necessary for your specific application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Texas Instruments' LM20133 family of synchronous buck regulators. It shares architectural similarities with other PowerWise devices but is optimized for lower input voltage ranges. The family emphasizes compactness and efficiency for portable and industrial applications. The NOPB suffix indicates lead-free and RoHS compliance, aligning with modern environmental standards for electronic components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements may include the LM20133MH variant without the E suffix if packaging differences are acceptable. Check datasheets for equivalent pinouts and electrical characteristics. Ensure any substitute supports the required 3 A output and 410 kHz switching frequency. Verify thermal performance in similar packages.