LM2651MTC-1.8/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2651MTC-1.8/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It provides a fixed 1.8V output with a maximum current of 1.5A. The device operates from an input voltage range of 4V to 14V and features a switching frequency of 300kHz. It supports a junction temperature range of -40°C to +125°C and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification for high efficiency
• Fixed 1.8V output configuration
• Integrated shutdown control

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supply stages for microprocessors
• Battery-powered equipment requiring efficient DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '1.8' confirms the fixed 1.8V output variant, distinct from adjustable or other fixed voltage versions within the LM2651 family. Confirm the 'NOPB' designation indicates lead-free and RoHS compliance as per manufacturer standards. Ensure the 16-TSSOP package matches the target PCB footprint requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a stable 1.8V rail is required at up to 1.5A from a 4V to 14V source. It is suitable for designs prioritizing efficiency over a wide load range. Consider the 300kHz switching frequency for passive component sizing. Verify thermal management capabilities for the TSSOP package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2651 series of high-efficiency synchronous buck converters. It shares architectural similarities with variants like LM2651MTC-ADJ/NOPB but offers a fixed output voltage instead of an adjustable one. The series is designed for applications demanding compact solutions and high performance in power management circuits.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2651MTC-1.8/NOPB is the direct equivalent replacement for the obsolete LM2651MTC-1.8. Both parts share identical electrical specifications and pinouts. No functional changes are associated with the transition between these part numbers.