NCV1117ST12T3

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

The NCV1117ST12T3G is a fixed-output low dropout linear voltage regulator from onsemi, designed for automotive and industrial applications. It provides a stable 1.2 V output with a maximum continuous current of 1 A. The device operates within an input voltage range of 1.4 V to 20 V and features a typical dropout voltage of 950 mV at full load. It maintains a voltage regulation accuracy of 1% and draws a static current of 6 mA. Qualified under AEC-Q100 standards, it functions reliably across an extended temperature range from -40°C to +125°C.

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

• Automotive-grade reliability certified by AEC-Q100 standards
• Fixed 1.2 V output with high precision regulation
• Low quiescent current consumption for efficiency
• Robust thermal performance in SOT-223 package

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

• Automotive electronic control units
• Industrial power management systems
• Embedded sensor supply rails
• Portable battery-powered devices requiring stable low voltage

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

Verify the complete part number includes the 'G' suffix (NCV1117ST12T3G) to confirm RoHS compliance and lead-free manufacturing status as specified by onsemi. Ensure the ordering code matches the specific tape-and-reel packaging configuration required for your assembly line. Cross-reference the datasheet revision date to confirm technical specifications align with your design requirements before finalizing procurement.

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

Select this component when a precise 1.2 V rail is required for automotive or harsh environment applications. The NCV series offers superior thermal stability compared to commercial grades. Verify that the input voltage remains above the minimum threshold to maintain regulation. Consider the SOT-223 package size constraints and thermal dissipation needs relative to the expected load current and ambient temperature conditions.

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

This part belongs to the NCV1117 family, which is the automotive-grade variant of the popular 1117 LDO series. Unlike the standard NCP1117, the NCV prefix indicates qualification for automotive reliability standards. It shares the same pinout and electrical characteristics as other members in the series but differs in manufacturing quality controls and long-term stability testing protocols mandated for automotive electronics.

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

Direct substitutes include NCV1117ST15T3G (1.5 V), NCV1117ST18T3G (1.8 V), and NCV1117ST20T3G (2.0 V) if voltage adjustment is permissible. Commercial equivalents like NCP1117ST12T3G may be used if automotive qualification is not strictly required.