NCP1117DT15RKG

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

The NCP1117DT15RKG is a fixed-output positive linear low-dropout regulator manufactured by onsemi. It provides a fixed output voltage of 1.5V with a maximum continuous output current of 1A. The device supports a maximum input voltage of 20V and operates within an ambient temperature range of -40°C to +125°C. Key electrical specifications include a typical dropout voltage of 1.07V at full load, a static current of 6mA, and a power supply rejection ratio (PSRR) of 72dB at 120Hz. It is housed in a DPAK (TO-252-3) surface-mount package.

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

• Provides stable fixed voltage regulation for sensitive digital logic circuits
• Integrated thermal overload and short-circuit protection mechanisms
• High power supply rejection ratio ensures clean output under noisy conditions
• Automotive-grade qualification for reliable operation in harsh environments

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

• Portable battery-powered equipment requiring efficient voltage regulation
• On-card regulation for embedded systems and microcontrollers
• Post-regulation for switching power supplies in automotive modules
• General-purpose power management in industrial control units

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

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct voltage and package configuration. Confirm AEC-Q100 automotive qualification status if required for specific end-use applications. Check RoHS compliance and material declarations for regulatory adherence. Ensure ordering quantities match available packaging formats such as tape and reel or cut tape.

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

Select this component when a fixed 1.5V output is required with high current capability. Consider the DPAK package for its thermal performance and board space efficiency. Evaluate the dropout voltage characteristics relative to the minimum input voltage available in the system. Verify that the operating temperature range meets the environmental requirements of the final assembly.

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

This device belongs to the NCV1117/NCP1117 family of adjustable and fixed LDO regulators from onsemi. The NCV prefix indicates automotive-grade qualification, while the DT suffix denotes the DPAK surface-mount package. The 15 in the model number specifies the fixed 1.5V output voltage option within this series.

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

Direct substitutes include other NCV1117 variants with different fixed output voltages, such as NCV1117DT33RKG for 3.3V output. Cross-reference with NCP1117DT15RKG for commercial-grade equivalents if automotive qualification is not mandatory. Verify pinout compatibility and thermal characteristics before substitution.