FAN2505S30X

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

The FAN2505S30X is a fixed-output linear voltage regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides a fixed 3V output with a maximum continuous current of 200mA. The device features a low dropout voltage of 0.2V at full load and operates within an input voltage range up to 6.5V. Key electrical specifications include a quiescent current of 75µA and power supply rejection ratio (PSRR) of 43dB at 120Hz. It supports an operating temperature range from -40°C to +125°C and includes thermal overload protection. The component is housed in a SOT-23-5 surface-mount package.

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

• CMOS technology implementation for micropower efficiency
• Integrated enable control functionality
• Thermal overload protection mechanism

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

• GSM cellular handsets
• TDMA cellular handsets
• Laptop portable computers
• Notebook portable computers

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

This component is officially classified as obsolete and no longer manufactured by the supplier. Verification of availability requires checking authorized distributors for remaining stock or surplus inventory. Designers should confirm end-of-life status through official manufacturer channels before finalizing procurement plans. Alternative sourcing strategies must be evaluated immediately due to discontinuation.

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

Engineers selecting this part must account for its discontinued status when designing new products. The fixed 3V output and 200mA current capability define its operational limits. Compatibility with existing PCB footprints using the SOT-23-5 package should be verified. Consideration of equivalent active components with similar pinouts and electrical characteristics is necessary for sustainable design practices.

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

The FAN2505S30X belongs to the FAN2504/05 family of micropower low-dropout voltage regulators. This series utilizes CMOS technology to provide cost-effective performance for portable electronic applications. The specific suffix '30' indicates the fixed 3V output voltage variant within the broader product line managed by onsemi following the acquisition of Fairchild Semiconductor assets.

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

Public confirmed substitute part numbers include MIC5255-3.0YD5-TR and MIC5255-3.0YM5-TR from Microchip Technology. These alternatives are listed as available replacements for the discontinued FAN2505S30X component.