FAN2559MP13X

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

The FAN2559MP13X is a fixed-output low voltage CMOS LDO providing 1.3V at 180mA load current with 1% accuracy. It features an open-drain Power Good indicator, 100µA ground current, and noise bypass capability for ultra-low noise operation. The device operates within a 2.7V to 5.5V input range, includes thermal shutdown and current limit protection, and requires only a 1µF output capacitor.

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

• Fixed 1.3V output with 1% initial accuracy
• Open-drain Power Good diagnostic output
• Ultra-low noise via external bypass pin
• TTL-level compatible enable control

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 component status as discontinued and not recommended for new design. Confirm package type matches 6-lead MLP or SOT-23 variants. Ensure compliance with RoHS standards and check for updated part numbers due to Fairchild integration changes.

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

Select this LDO for compact battery-powered systems requiring high ripple rejection and low noise. Verify that the application utilizes a 1µF output capacitor with ESR between 0 and 300mΩ. Ensure the input voltage remains within the specified operating range for the desired output.

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

Part of the FAN2558/9 family of low voltage CMOS LDOs from onsemi (formerly Fairchild). Designed for portable electronics, it offers BiCMOS technology optimization for low power consumption and fast enable times suitable for CDMA applications.

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

Contact onsemi representatives for information on alternative components. No specific public substitute part numbers are confirmed in the documentation.

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

What is the function of the BYP pin?

The BYP pin allows connection of an external capacitor to significantly reduce output noise for ultra-low noise operation.

How does the Power Good indicator work?

It is an open-drain output that goes LOW when the output voltage drops below 95% of the nominal value, indicating a fault condition.