LM26003MHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM26003MHX/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments. It features an integrated high-side and low-side N-channel power MOSFETs, delivering up to 3A of output current. The device supports an input voltage range from 3V to 38V and provides an adjustable output voltage between 1.25V and 35V. It operates with a fixed switching frequency selectable between 150kHz and 500kHz. Key electrical parameters include a load regulation of 0.08% and a quiescent current of 40µA. The component is housed in a 20-pin HTSSOP package and functions within an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification
• Features a high-efficiency sleep mode that significantly reduces quiescent current during light-load conditions
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load (POL) conversion in industrial equipment
• Power supply stages for embedded systems and computing modules
• Battery-powered applications requiring extended standby life

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'HX' indicates tape-and-reel packaging when reviewing distributor listings. Confirm the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer part number against official Texas Instruments documentation to ensure authenticity and correct revision level before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a single-output buck converter with high efficiency across varying load conditions. The wide input voltage range accommodates various bus voltages, while the adjustable output allows flexibility in rail generation. Consider the thermal performance of the HTSSOP-20 package relative to the expected continuous current load and ambient temperature constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2600x series of switching regulators, which are designed for high-efficiency power management. The LM26003 variant specifically targets higher current applications compared to lower-current siblings like the LM26001. It utilizes Texas Instruments' proprietary control architecture to maintain stability and efficiency in compact form factors suitable for dense PCB layouts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM26003MH/NOPB is available in tube packaging instead of tape-and-reel.