NCP1117DT18RKG

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

The NCP1117DT18RKG is a low-dropout positive voltage regulator manufactured by onsemi, delivering a fixed 1.8 V output with a maximum current capacity of 1 A. It utilizes a DPAK (TO-252-3) surface-mount package designed for efficient thermal dissipation. The device operates within an input voltage range up to 20 V and maintains regulation without requiring a minimum load. Key electrical specifications include a typical dropout voltage of 1.07 V at full load and a static current of approximately 3.6 mA. It features integrated overcurrent and thermal shutdown protection mechanisms.

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

• Provides stable 1.8 V fixed output with 1 A continuous current capability
• Operates with low dropout voltage for efficient power management
• Includes internal overcurrent and thermal shutdown protection circuits

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

• Portable battery-powered equipment requiring regulated 1.8 V rails
• Embedded systems utilizing 1.8 V logic or memory components
• General-purpose linear regulation in space-constrained PCB designs

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

Verify the specific suffix RKG against official datasheets to confirm package type and tape-and-reel configuration. Ensure compatibility with RoHS directives if required by your manufacturing standards. Cross-reference the manufacturer part number directly with onsemi documentation to avoid confusion with similar series variants that may have different thermal or electrical characteristics.

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

Select this component when a fixed 1.8 V output is required with high current handling in a compact surface-mount form factor. The DPAK package offers superior thermal performance compared to smaller SOT packages. Consider the maximum input voltage limit of 20 V and ensure the system design accounts for the resulting power dissipation and heat sinking requirements under full load conditions.

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

This component belongs to the NCP1117 series of low-dropout positive voltage regulators from onsemi. The series is characterized by its ability to provide over 1.0 A of output current with minimal voltage drop. The DT18 variant specifically denotes the 1.8 V fixed output version, while the RKG suffix typically indicates the DPAK packaging and specific reel configuration used for automated assembly processes.

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

NCP1117DT18T5G: Alternative DPAK package variant with identical electrical specifications and 1.8 V output.