FAN2504S27X

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

The FAN2504S27X is a micropower low-dropout (LDO) linear voltage regulator manufactured by Fairchild Semiconductor, now part of onsemi. It utilizes CMOS technology to provide a fixed 2.7 V output with a maximum load current of 200 mA. The device operates within an input voltage range of 2.7 V to 6.5 V and features a positive polarity configuration. It is housed in a compact SOT-23-5 surface-mount package. Key electrical characteristics include a dropout voltage of 2.5 mV at 100 µA, a line regulation of 0.3 %/V, and a load regulation of 2 %. The unit supports an operating temperature range from -40 °C to +125 °C.

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

• CMOS-based micropower design for cost-effective performance in portable applications
• Low dropout voltage capability ensuring efficient regulation under varying load conditions
• Integrated enable control feature for power management flexibility
• Thermal protection mechanisms included for operational safety

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

• GSM cellular handsets
• TDMA cellular handsets
• Laptop computers
• Notebook portable computers
• Other battery-powered portable devices

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

Verify the specific suffix '27X' confirms the 2.7 V fixed output variant. Confirm the manufacturer designation as Fairchild Semiconductor or onsemi depending on the production era. Check component status as this series may be discontinued; ensure availability matches project requirements. Validate RoHS compliance details against the specific datasheet revision. Confirm package integrity for SOT-23-5 mounting.

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

Select this component when a stable 2.7 V rail is required for low-power digital logic or RF sections in mobile phones. The 200 mA output current suits moderate load demands typical in handheld devices. The wide input range accommodates single-cell lithium-ion battery discharge profiles. Consider the SOT-23-5 footprint for space-constrained PCB layouts. Ensure thermal dissipation capabilities align with the expected ambient temperature environment.

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

This device belongs to the FAN2504/05 family of LDO regulators designed for portable electronics. It shares architectural similarities with other members like the FAN2504S28X and FAN2505S27X, differing primarily in output voltage settings. The series emphasizes low quiescent current and small form factors to extend battery life in GSM and TDMA mobile telephony applications.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with direct pin-to-pin replacements such as other FAN2504 variants with different voltage outputs if system design allows adjustment.