LM20145MHE/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM20145MHE/NOPB is a synchronous buck regulator IC from Texas Instruments, designed for high-efficiency power conversion. It delivers up to 5A of continuous output current with an input voltage range of 2.95V to 5.5V. The device operates at switching frequencies between 260kHz and 750kHz, featuring adjustable output voltages from 0.8V to 5V. Packaged in a 16-pin PowerTSSOP (HTSSOP-20 variant referenced in some listings) or similar SMD form factor, it supports operation temperatures from -40°C to +125°C. Key electrical parameters include a maximum operating supply current of 3.5mA and load regulation of 0.08%.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for enhanced efficiency
• Accurate current limit protection to minimize inductor saturation risks
• Wide input voltage compatibility suitable for battery-powered systems
• Adjustable output voltage capability for flexible design integration

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• Point-of-load (POL) voltage regulation
• Industrial control systems requiring stable low-voltage rails
• Automotive infotainment and sensor modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific package designation (PowerTSSOP vs HTSSOP) against the official datasheet, as distributor listings may vary. Confirm AEC-Q100 Grade 1 qualification if automotive compliance is required. Ensure the ordering suffix matches the exact reel or tube packaging needed for your assembly line. Cross-reference the manufacturer part number directly with Texas Instruments to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-current synchronous buck solution is needed within a 5.5V input limit. It is suitable for designs prioritizing efficiency and thermal performance in space-constrained environments. Consider the adjustable frequency feature for EMI optimization. Ensure the output current requirement does not exceed 5A continuous under worst-case thermal conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Texas Instruments' LM2014x family of synchronous buck regulators. It complements other devices like the LM25118 for wider input ranges but focuses on lower voltage applications typical of single-cell lithium-ion or lead-acid battery systems. The NOPB suffix indicates lead-free and RoHS compliance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other TI synchronous buck regulators with similar current ratings and input ranges, such as the LM5160 series for higher voltage inputs or the TPS5430 for comparable 3A/5A performance. Verify pin-to-pin compatibility and thermal characteristics before substitution.