FAN2500S33X

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

The FAN2500S33X is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by onsemi. It provides a stable 3.3 V output with a maximum continuous current of 100 mA. The device operates within an input voltage range of 2.7 V to 6.5 V and utilizes CMOS technology for micropower efficiency. It features a SOT-23-5 surface-mount package and supports operation from -40°C to +125°C. Key electrical parameters include a line regulation of 0.3%/V, load regulation of 2%, and a dropout voltage of 140 mV at full load.

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

• CMOS technology enables micropower consumption suitable for battery-operated systems
• Fixed 3.3 V output ensures precise voltage regulation without external feedback components
• Low dropout characteristic allows efficient operation near the input voltage limit

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

• GSM and TDMA cellular handsets
• Laptop and notebook portable computers
• General purpose portable electronic devices

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements before integration. Check for obsolescence notices as this series may have limited availability in certain regions. Ensure storage conditions meet moisture sensitivity level specifications to prevent package damage during assembly.

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

Select this regulator when a fixed 3.3 V rail is required with moderate current demands up to 100 mA. The SOT-23-5 package is ideal for space-constrained PCB layouts. Consider thermal dissipation capabilities if operating near maximum input voltage limits. Verify that the input supply remains above the minimum dropout threshold to maintain regulation stability under all load conditions.

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

This component belongs to the FAN2500 family of 100 mA CMOS LDO regulators. The family includes variants with different fixed output voltages, such as 2.5 V, 2.7 V, and 3.0 V. These parts share identical pinouts and packaging, facilitating design flexibility across product lines requiring different voltage rails while maintaining consistent board layout strategies.

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

Direct substitutes include other FAN2500 series variants like FAN2500S30X for 3.0 V applications. Cross-referencing with CAT6217 or CAT6218 requires verification of current capacity differences. Ensure any replacement maintains the same SOT-23-5 footprint and electrical characteristics to avoid redesigning the power supply circuit.