FAN2508S28X

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

The FAN2508S28X is a fixed-output linear voltage regulator manufactured by ON Semiconductor, operating within the FAN2508 series. It provides a precise 2.8V output with a maximum continuous current capability of 50mA. The device supports an input voltage range up to a maximum of 6.5V and features a low dropout voltage of 0.075V at full load. Key electrical specifications include a quiescent current of 50µA and a power supply rejection ratio of 43dB at 120Hz. It incorporates over-temperature protection and is housed in a compact SOT-23-5 surface-mount package, suitable for operation across an extended temperature range of -40°C to 125°C.

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

• Provides a stable fixed positive output voltage regulated via CMOS LDO architecture
• Integrates thermal shutdown circuitry to protect against overheating conditions
• Designed for low-power applications with minimal static current consumption

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

• Portable battery-powered electronic devices requiring efficient power management
• Embedded systems utilizing microcontrollers or digital logic circuits
• Communication equipment needing clean, regulated voltage rails

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

Verify that the component matches the specific 2.8V output variant within the FAN2508 family. Confirm the SOT-23-5 package designation aligns with board layout requirements. Ensure compliance with RoHS standards if applicable to the manufacturing process. Cross-reference the manufacturer data sheet for any updates regarding lead-free status or environmental declarations prior to final procurement decisions.

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

Select this regulator when a fixed 2.8V rail is required with moderate current demands up to 50mA. Consider the low dropout characteristic for applications where input voltage closely approaches the output level. Evaluate the 50µA quiescent current against system power budget constraints. Verify that the thermal performance meets the ambient operating conditions without additional heat sinking solutions.

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

This component belongs to the FAN2508/FAN2509 series of 50mA CMOS Low Dropout Regulators. It serves as a specialized power management integrated circuit designed for space-constrained designs. The series offers various fixed output voltages, with the S28 suffix specifically denoting the 2.8V configuration. It complements other regulators in the portfolio offering different current ratings or adjustable outputs.

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

Compatible substitutes include the FAN2505S28X, which provides a higher 200mA output capacity in the same package. Other variants within the FAN2508 series may be considered if different output voltages are required. Always verify pin compatibility and thermal characteristics when transitioning between similar part numbers.