FAN2503S30X

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

The FAN2503S30X is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by Fairchild Semiconductor, now part of onsemi. It provides a fixed 3.0V output with a maximum continuous current capability of 150mA. The device operates within an input voltage range up to 6.5V and features a typical dropout voltage of 200mV at full load. It incorporates internal protection mechanisms including thermal shutdown and current limiting. The component is housed in a compact SOT-23-5 surface-mount package and is rated for operation across an extended temperature range from -40°C to +125°C.

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

• Provides a stable fixed 3.0V DC output voltage suitable for powering sensitive digital logic circuits.
• Integrates comprehensive protection features including thermal shutdown and current limiting to ensure device reliability under fault conditions.
• Utilizes a small-footprint SOT-23-5 surface-mount package designed for efficient space-constrained PCB layouts.

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

• Portable battery-powered consumer electronics requiring regulated power rails
• Embedded systems and microcontroller power supply conditioning
• General-purpose low-noise analog circuit biasing

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

Verify the specific suffix 'S30X' against official manufacturer documentation to confirm the exact output voltage tolerance and packaging variant. Confirm end-of-life status and availability of qualified replacement components prior to finalizing design specifications. Ensure compliance with RoHS directives if required for the target market.

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

Select this component when a precise 3.0V rail is required with moderate current demands up to 150mA. Evaluate the dropout voltage characteristics against the minimum available input voltage to maintain regulation. Consider the thermal performance in the intended enclosure environment given the small package size.

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

This part belongs to the FAN250x series of CMOS LDO regulators produced by Fairchild Semiconductor. The series includes variants with different output voltages and current ratings, such as the FAN2503, FAN2505, and FAN2513. These devices share common architectural features optimized for low noise and high power supply rejection ratio (PSRR) applications.

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

Public confirmed substitute part numbers are not provided in the source material. Consult manufacturer cross-reference guides for equivalent LDO regulators offering similar electrical specifications and pin compatibility.