LM21215MHE/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM21215MHE/NOPB is a synchronous buck regulator manufactured by Texas Instruments, formerly National Semiconductor. It operates with an input voltage range of 2.95 V to 5.5 V and delivers up to 15 A of continuous output current. The device features a fixed switching frequency of 500 kHz and supports output voltages from 600 mV to 5.5 V. It utilizes HTSSOP-20 packaging and functions within a temperature range of -40°C to +125°C. Key electrical parameters include a load regulation of 0.02% per volt and a quiescent current of 1.5 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side FETs for simplified design and reduced solution size.
• Provides industry-leading efficiency for high-current applications.
• Features resistor-programmable current limit capability.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering high-performance Field Programmable Gate Arrays (FPGAs)
• Supplying Special Application Integrated Circuits (ASICs)
• Providing voltage regulation for microprocessors in low-voltage systems
• Supporting wireless communication infrastructure equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin carefully, as the component originates from National Semiconductor but is now distributed under the Texas Instruments brand. Confirm the specific suffix 'MHE' matches the required package variant. Ensure compliance with RoHS standards as indicated in official documentation before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when designing for high-efficiency power delivery to digital logic requiring up to 15 A. The fixed 500 kHz frequency suits applications where electromagnetic interference filtering is manageable. Consider the thermal performance of the HTSSOP-20 package relative to the expected ambient operating conditions and heat dissipation requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the PowerWise energy-efficient product family introduced by National Semiconductor. It is designed specifically for demanding low-voltage applications found in networking and optical communications infrastructure. The device represents a transition point in semiconductor manufacturing history between National Semiconductor and Texas Instruments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM21215AMHE-1/NOPB offers similar functionality with adjustable switching frequency capabilities. LM21212 series variants provide lower current ratings suitable for less demanding loads. Verify pinout compatibility and thermal characteristics when substituting with other members of the synchronous buck regulator family.