FAN2558MP18X

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

The FAN2558MP18X is a fixed-output low voltage CMOS LDO regulator manufactured by onsemi. It provides a regulated 1.8V output with a maximum load current of 180mA. The device operates within an input voltage range of 2.7V to 5.5V and features 1% output accuracy. Key electrical characteristics include a typical ground current of 100µA, power supply rejection ratio of 50dB at 100kHz, and stability with output capacitors having 0 to 300mΩ ESR. It incorporates thermal shutdown and current limit protection.

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

• Fixed 1.8V output voltage with 1% initial accuracy
• Integrated Power Good indicator with open-drain output
• TTL-level compatible enable input for fast shutdown
• Active output discharge in shutdown mode

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 status as discontinued or obsolete before procurement. Confirm package type matches MLP-6 (2x2mm). Check for updated ordering suffixes due to Fairchild integration changes. Ensure compliance with RoHS standards. Validate availability through authorized distributors.

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

Select this component for applications requiring a compact 1.8V supply with moderate current needs. Consider the MLP-6 package for space-constrained designs. Verify input voltage stays above dropout requirements. Ensure output capacitor ESR falls within stable range. Evaluate thermal performance under maximum load conditions.

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

Part of the FAN2558/FAN2559 family of low voltage CMOS LDOs. Available in SOT-23 and MLP packages. Offers adjustable and fixed voltage options. Designed for battery-powered systems with high ripple rejection and low noise capabilities.

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

Check for direct pin-compatible replacements from onsemi or other manufacturers. Verify output voltage, current rating, and package dimensions match. Ensure equivalent protection features like thermal shutdown are present.