LM26001MXA

Voltage Regulators - DC DC Switching Regulators Overview

The LM26001MXA/NOPB is a synchronous buck switching regulator IC manufactured by Texas Instruments. It operates with an input voltage range of 3V to 38V and provides a single adjustable output from 1.234V to 35V at up to 1.5A. The device features a switchable frequency between 150kHz and 500kHz, external clock synchronization, and programmable soft-start. It includes protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting. The component is housed in a 16-PowerTSSOP package with an exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High-efficiency sleep mode operation with low quiescent current consumption during standby states
• Integrated power stage supporting continuous 1.5A output current capability
• Flexible switching frequency adjustment and external clock synchronization for noise management
• Comprehensive protection suite including thermal shutdown and cycle-by-cycle current limit

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Navigation system power supplies
• Dashboard instrument clusters
• Battery-powered portable devices
• Backup power for home gateways and set-top boxes

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number suffix, specifically checking for NOPB designation to confirm lead-free and RoHS compliance status. Confirm the package variant matches the required 16-PowerTSSOP footprint with exposed thermal pad specifications. Ensure the ordering quantity aligns with the manufacturer's standard tube or reel packaging options available for this specific revision. Cross-reference the date code against any recent Product Change Notifications (PCN) regarding symbolization or material updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring high input voltages up to 38V with efficient step-down conversion. It is suitable for applications demanding low standby power through its dedicated sleep mode. Engineers should consider the adjustable switching frequency range to optimize filter size versus electromagnetic interference performance. The exposed pad design necessitates adequate PCB thermal relief planning to maintain junction temperature within the specified -40°C to 125°C operating range under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM26001 family of high-voltage synchronous buck regulators designed for automotive and industrial environments. It shares functional similarities with other members like the LM26003 but differs in output current capacity and pin count. The series is characterized by its ability to operate efficiently across wide input voltage ranges while maintaining precise output regulation. It serves as a core power management solution for complex electronic systems requiring reliable DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM26001MXAX/NOPB which shares identical electrical characteristics and pinout configuration. Designers may also evaluate LM26003MH/NOPB for higher current requirements, though pin compatibility must be verified. Alternative packages within the same family should be checked for thermal performance equivalence. Always validate pin-to-pin compatibility and control loop stability before implementing any cross-replacement.