LM1771TSD/NOPB

DC DC Switching Controllers Overview

The LM1771TSD/NOPB is a low-voltage synchronous buck controller from Texas Instruments, designed for high-efficiency power conversion. It features a constant ON-time control mode and operates with an input voltage range of 3V to 14.5V. The device supports output currents up to 6A and offers adjustable switching frequencies between 100 kHz and 1 MHz. It includes a precision enable feature and requires no external compensation. The unit is housed in a 10-MSOP-EP package and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Constant ON-time control architecture eliminates the need for external compensation networks
• Precision enable function allows for accurate power sequencing and shutdown control
• Integrated synchronous rectification driver supports high efficiency at low output voltages

DC DC Switching Controllers Applications

• Point-of-load regulation for FPGA core supplies
• Industrial equipment power distribution systems
• Telecommunications infrastructure power modules

DC DC Switching Controllers Procurement Notes

Verify component status as this specific part number may be obsolete or discontinued by the manufacturer. Confirm availability of alternative packages or updated series replacements before finalizing design specifications. Ensure compatibility with existing PCB footprints if substituting with similar devices from the same product family.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring simple design without external compensation components. Consider the 6A current capability and wide input voltage range for versatile power solutions. Evaluate thermal performance requirements given the MSOP-EP package constraints. Verify that the constant ON-time control loop stability meets the specific load transient requirements of the target application.

DC DC Switching Controllers Part Context

This component belongs to the LM177x series of low-voltage synchronous buck controllers. These devices are engineered for compact power designs where board space is limited. The series typically shares architectural similarities but varies in package options and current ratings. This specific variant utilizes a thermally enhanced MSOP package for improved heat dissipation compared to standard small outline packages.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute: LM1770TMF/NOPB. Note that the LM1770 series may have different current ratings and package types. Verify pinout compatibility and electrical parameter alignment before substitution.