FAN2512S28X

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

The FAN2512S28X is a fixed-output linear voltage regulator manufactured by onsemi, classified under PMIC LDO regulators. It provides a fixed positive output of 2.8V with a maximum continuous output current of 150mA. The device supports an input voltage range up to a maximum of 6.5V and features a typical dropout voltage of 0.18V at full load. Key electrical parameters include a quiescent current of 50µA and a power supply rejection ratio (PSRR) of 43dB at 120Hz. It operates within a temperature range of -40°C to 125°C and is housed in a SOT-23-5 surface-mount package.

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

• Provides a stable fixed positive voltage output suitable for precision analog circuits.
• Integrates thermal protection mechanisms to ensure safe operation under overload conditions.
• Features an enable control pin for efficient power management and system sequencing.

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

• Portable consumer electronics requiring low-power regulation
• Battery-powered devices needing extended operational life
• Embedded systems utilizing microcontrollers or sensors

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

This component has been officially discontinued and is no longer available for new production orders from the manufacturer. Procurement should focus on identifying verified substitute parts that match the required electrical specifications and package footprint. Designers must review replacement datasheets to confirm compatibility before integrating alternative components into existing schematics.

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

Engineers selecting this part should verify that the required output voltage aligns with the fixed 2.8V specification, as adjustable variants are not available in this specific suffix configuration. The 150mA current limit must be sufficient for the target application's peak load requirements. Additionally, designers must account for the thermal dissipation capabilities inherent to the small SOT-23-5 package when operating near maximum current limits.

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

The FAN2512S28X belongs to the FAN2512 series of low-dropout regulators designed for low-noise, low-power applications. This series is characterized by its compact size and ability to maintain regulation with minimal input-to-output voltage difference. The 'S28X' suffix specifically denotes the 2.8V fixed output voltage variant within the broader product family.

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

• REG101NA-2.8/250 (Texas Instruments)
• MIC5255-2.8YM5-TR (Microchip Technology)

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

What is the maximum input voltage for the FAN2512S28X?

The maximum input voltage supported by this regulator is 6.5V.

Does the FAN2512S28X include over-temperature protection?

Yes, the device includes built-in thermal protection to prevent damage during overheating events.