LM20145MHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM20145MHX/NOPB is a synchronous buck regulator from Texas Instruments, housed in an HTSSOP-20 package. It delivers up to 5 A output current with an adjustable switching frequency ranging from 260 kHz to 750 kHz. The device supports output voltages between 800 mV and 5 V, operating within an input voltage range of 4.5 V to 36 V. It features integrated power MOSFETs, thermal shutdown, and operates across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side N-channel power MOSFETs for efficient synchronous rectification
• Adjustable switching frequency allows optimization for size and efficiency trade-offs
• Built-in thermal shutdown protection safeguards against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load (POL) regulation for industrial equipment
• Power distribution networks in embedded systems
• Battery-powered portable devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and RoHS adherence as per manufacturer standards. Confirm the 'MHX' designation corresponds to the HTSSOP-20 tape and reel packaging format. Ensure compatibility with the required thermal management solutions given the 5 A continuous current capability and junction temperature limits defined in the official datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-efficiency solution is needed for converting higher bus voltages down to lower logic or peripheral levels. The adjustable frequency feature provides flexibility in passive component selection. Consider the thermal performance requirements of the application environment, as the device operates at significant current densities within its small footprint package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2014x family of PowerWise regulators, designed for applications demanding high efficiency and small solution size. It complements other fixed-frequency variants by offering user-adjustable switching speeds. The series targets modern electronics where space constraints and thermal density are critical design factors for power management subsystems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible alternatives may include other Texas Instruments synchronous buck regulators with similar current ratings. Verify that substitute parts match the input voltage range and thermal characteristics. Cross-reference package dimensions and electrical specifications to ensure seamless integration without circuit redesign.