NCP100SNT1G

Overview

The NCP100SNT1G is a precision low voltage shunt regulator manufactured by onsemi, housed in a TSOP-5 surface mount package. It features a programmable output voltage range from 0.9 V to 6.0 V with a guaranteed reference accuracy of ±1.7% at 25°C and ±2.6% over the temperature range of −40 °C to 85 °C. The device exhibits a sharp low current turn-on characteristic and maintains a low dynamic impedance of 0.2 Ω across an operating current range of 100 µA to 20 mA. Designed for space-constrained applications, it serves as a precise low voltage reference or error amplifier.

Feature Summary

• Programmable cathode-to-anode voltage range spanning 0.9 V to 6.0 V
• Guaranteed tight voltage reference tolerance of ±1.7% at room temperature
• Sharp turn-on characteristic enabling operation at very low currents
• Low dynamic output impedance ensuring stable regulation performance

Applications

• Reference source for single cell alkaline, NiCd, and NiMH battery applications
• Error amplifier for isolated switching power supplies with low output voltages
• Voltage reference in portable test equipment and instrumentation
• Precision regulation in battery-powered consumer products

Procurement Notes

Verify that the ordering suffix 'G' confirms the component is Pb-Free compliant. Ensure the specific SN suffix corresponds to the TSOP-5 package variant required for your design. Confirm that the manufacturer is Semiconductor Components Industries, LLC (onsemi) and check datasheet revisions for any updates to electrical characteristics or thermal resistance values before finalizing procurement specifications.

Selection Notes

Select this component when a low voltage reference below standard 1.25 V or 2.5 V options is required. The NCP100 is suitable for designs needing high accuracy in small packages. Consider the minimum operating cathode voltage of 0.9 V and the required load capacitance for stability. Evaluate the thermal resistance of the TSOP-5 package against your ambient temperature conditions to ensure reliable operation within the specified junction temperature range.

Part Context

The NCP100 series provides a compact solution for precision voltage regulation in low voltage environments. Unlike traditional Zener diodes, it offers adjustable output and superior accuracy. The TSOP-5 package variant allows for efficient PCB layout in dense designs. This device fills the gap between discrete Zeners and larger adjustable references like the TL431, specifically targeting applications where space and low voltage headroom are critical constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.