NCP561SN18T1

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The NCP561SN18T1 is a single-channel, low-dropout linear voltage regulator manufactured by onsemi. It provides a fixed output voltage of 1.8V with high line and load regulation capabilities. The device incorporates internal protection features including thermal shutdown and current limiting to ensure reliable operation under fault conditions. Designed for space-constrained applications, it utilizes a compact SOT-23 surface-mount package. This regulator offers low quiescent current consumption, making it suitable for battery-powered portable electronics where power efficiency is critical.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Fixed 1.8V output voltage for precise power supply requirements
• Integrated thermal shutdown and current limit protection mechanisms
• Compact SOT-23 package design for minimal board space utilization

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable consumer electronics requiring stable low-voltage rails
• Battery-operated devices needing efficient power management
• Embedded systems utilizing microcontrollers or sensors

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the complete part number against official onsemi documentation to confirm the specific suffixes indicate the correct tape-and-reel quantity and packaging variant. Ensure compatibility with your PCB footprint specifications for the SOT-23 package. Cross-reference the revision level in the datasheet to guarantee functional equivalence with existing designs. Confirm that the operating temperature range meets your environmental requirements before finalizing procurement orders.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 1.8V output is required with minimal external components. Evaluate the input voltage range to ensure it remains within the dropout specifications for your application. Consider the thermal performance characteristics given the small package size if high load currents are anticipated. Verify that the low quiescent current aligns with your system's standby power constraints compared to alternative regulators.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to onsemi's NCP561 series of low-dropout regulators designed for general-purpose analog and digital circuit powering. The series offers various fixed output voltages to accommodate different logic families and sensor requirements. The SN18 suffix specifically denotes the 1.8V output version, distinguishing it from other variants in the family while sharing common protection features and package options.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult onsemi's official cross-reference tools for verified equivalent parts. Ensure any substitute maintains the same 1.8V output, SOT-23 package, and pinout configuration. Verify that replacement components meet identical electrical specifications regarding dropout voltage and current limits.