NCP100SNT1

Overview

The NCP100SNT1 is a precision low voltage shunt regulator in a TSOP-5 package, programmable from 0.9 V to 6.0 V. It features a guaranteed reference accuracy of ±1.7% at 25°C and ±2.6% over the -40°C to 85°C range. The device exhibits a sharp low current turn-on characteristic with a dynamic impedance of 0.2 Ω from 100 µA to 20 mA. Operating cathode current ranges from 80 µA to 20 mA, making it suitable for replacing zener diodes in precise low voltage reference applications.

Feature Summary

• Precision adjustable shunt regulation with tight reference tolerance across temperature
• Sharp turn-on characteristic enabling operation at extremely low currents
• Low dynamic output impedance ensuring stable performance under varying load conditions

Applications

• Reference for single cell alkaline, NiCd, and NiMH battery applications
• Error amplifier for low output voltage switching power supplies
• Battery powered consumer products requiring precise voltage references
• Portable test equipment and instrumentation

Procurement Notes

Verify the SN suffix indicates the TSOP-5 package configuration. Confirm the T1 suffix corresponds to tape and reel shipping specifications. Ensure the component meets Pb-Free requirements if environmental compliance is necessary for the assembly process.

Selection Notes

Select this component when a sub-1V reference is required that traditional 1.25V or 2.5V regulators cannot support. Consider the low IREF for high-impedance divider networks and verify stability boundaries regarding load capacitance and ESR for the specific operating voltage.

Part Context

This device belongs to the NCP100 series of sub-1V precision adjustable shunt regulators manufactured by onsemi. It serves as a direct replacement for standard Zener diodes where higher precision and lower voltage operation are needed. The series includes TO-92 and TSOP-5 packaging options.

Replacement Considerations

NCP100SNT1G (Pb-Free version)