FAN1117AS5X

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

The FAN1117AS5X is a fixed-output low-dropout linear regulator manufactured by onsemi. It provides a stable 5V output with a maximum continuous current of 1A. The device operates within an input voltage range of 2.5V to 18V and features a maximum dropout voltage of 1.2V at full load. It includes internal current limiting and thermal shutdown protection for robust operation. The component is housed in a SOT-223-4 surface-mount package and supports an operating temperature range from 0°C to +125°C.

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

• Provides a fixed 5V regulated output voltage suitable for digital logic and peripheral power supplies.
• Integrates internal current limit and thermal overload protection mechanisms to safeguard the device under fault conditions.
• Designed for high efficiency in low-dropout applications, maintaining regulation with minimal input-to-output voltage differential.

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

• Powering microcontrollers and embedded processors requiring stable 5V rails
• Supplying power to peripheral interfaces such as USB ports or RS-232 transceivers
• Battery-powered systems where efficient step-down conversion from higher voltage sources is required

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

Verify component authenticity through authorized distribution channels due to obsolete status. Confirm package marking and date codes against official datasheets. Check for RoHS compliance documentation if required for specific regulatory environments. Ensure storage conditions meet manufacturer specifications to prevent degradation prior to assembly.

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

Select this component when a fixed 5V output is required with up to 1A load capability. Consider the SOT-223-4 package for space-constrained PCB layouts. Evaluate thermal performance based on expected power dissipation and ambient temperature conditions. Verify that the input voltage range aligns with the system's supply architecture.

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

This part belongs to the FAN1117 series of low-dropout regulators, designed for general-purpose power management applications. The series offers various fixed output voltages and adjustable versions to accommodate diverse system requirements. Manufactured by onsemi, these components are widely used in consumer electronics and industrial equipment for reliable voltage regulation.

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

NCP1117ST50T3G is listed as a similar substitute option. Verify pin compatibility and electrical specifications before replacement. Ensure the alternative component meets all original design constraints including package dimensions and thermal characteristics.