FAN2558S10X

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

The FAN2558S10X is a fixed-output low voltage CMOS LDO regulator manufactured by onsemi. It provides a stable 1.0V output with a maximum load current of 180mA. The device operates within an input voltage range of 2.7V to 5.5V and features a typical dropout voltage of 0.25V at full load. It incorporates thermal shutdown, current limit protection, and a power good indicator with open-drain output. The component is housed in a 5-lead SOT-23 package.

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

• Fixed 1.0V output voltage with 1% accuracy
• Power Good indicator with open-drain output for system monitoring
• Integrated thermal shutdown and current limit protection
• TTL-level compatible enable input for fast shutdown

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

• Processor power-up sequencing
• Cell phones and PDAs
• Portable electronic equipment
• PCMCIA Vcc and Vpp regulation

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

Verify the part number against the official onsemi ordering information table to confirm the specific output voltage and package type. Note that this device is discontinued and not recommended for new designs; consult an onsemi representative for updated availability or alternative solutions before procurement.

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

Select this component for applications requiring a fixed 1.0V rail from a single-cell battery or low-voltage source. Ensure the input voltage remains above the minimum threshold of 2.7V. Verify that the load current does not exceed 180mA and that the PCB layout supports the required thermal dissipation for the SOT-23 package.

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

This part belongs to the FAN2558/FAN2559 family of low voltage CMOS LDOs. The FAN2558 series specifically offers fixed output voltages with a Power Good flag, distinguishing it from the adjustable FAN2558ADJ and the low-noise FAN2559 variants. The 'S' suffix denotes the 5-lead SOT-23 package option.

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

LD39015M12R (STMicroelectronics) is listed as a substitute for the FAN2558S12X variant. No direct public substitute is confirmed for the 1.0V FAN2558S10X in the provided documentation.