FAN2505S33X

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

The FAN2505S33X is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides a stable 3.3 V output with a maximum continuous current of 200 mA. The device operates within an input voltage range of 2.7 V to 6.5 V and features a typical dropout voltage of 2.5 mV at 100 µA load. It includes internal protection mechanisms such as thermal shutdown and overcurrent limiting. The component is housed in a compact SOT-23-5 surface-mount package and supports operation across an extended temperature range from -40°C to +125°C.

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

• Provides a fixed 3.3 V regulated output for sensitive digital logic circuits
• Features ultra-low dropout characteristics for efficient power management
• Includes integrated thermal shutdown and overcurrent protection for system reliability

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

• Portable battery-powered consumer electronics
• Embedded systems requiring stable 3.3 V logic supplies
• General-purpose voltage regulation in space-constrained designs

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

Verify the manufacturer status carefully, as the FAN2505 series has been discontinued by onsemi. Confirm whether available inventory consists of original Fairchild or onsemi stock. Ensure that any replacement components selected offer compatible pinouts and electrical specifications to maintain circuit integrity without redesign.

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

Select this component when a fixed 3.3 V supply is required with minimal quiescent current consumption. The SOT-23-5 package is suitable for high-density PCB layouts. Consider the input voltage headroom relative to the dropout specification to ensure regulation under all load conditions. Verify that the thermal performance meets the application's ambient temperature requirements.

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

This part belongs to the FAN2505 family of low-power LDO regulators designed for portable applications. The series offers various fixed output voltages to support different logic families. The transition from Fairchild Semiconductor to onsemi affects branding but not the underlying silicon design. Engineers should reference the official datasheet for precise electrical characteristics and layout guidelines.

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

• MIC5255-3.3YM5-TR
• MIC5255-3.3YD5-TR

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

What is the maximum output current capability of the FAN2505S33X?

The device supports a maximum output current of 200 mA.

Does the FAN2505S33X include protection features?

Yes, it includes thermal shutdown and overcurrent protection to safeguard the device and load.