FAN2558S13X

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

The FAN2558S13X is a low voltage CMOS Low Dropout (LDO) linear regulator manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It provides a fixed 1.3V output with a maximum load current of 180mA. The device features 1% output accuracy and incorporates delayed power good indication via an open-drain output. Key protection mechanisms include thermal shutdown and short-circuit protection. It operates within an input voltage range of 2.7V to 5.5V and requires only a 1µF output capacitor for stability.

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

• Fixed 1.3V output voltage with 1% accuracy
• Integrated power good indicator with open-drain output
• Ultra-low noise operation capability via external bypass capacitor
• Built-in thermal shutdown and short-circuit protection

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

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

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

Verify the manufacturer status as Fairchild Semiconductor has been integrated into ON Semiconductor. Confirm that the specific ordering suffix matches current ON Semiconductor nomenclature requirements, particularly regarding underscore-to-dash conversions in updated system records. Ensure the component meets RoHS compliance standards before procurement.

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

Select this component when a stable 1.3V rail is required for low-power digital logic or analog circuits. It is suitable for battery-powered applications due to its low ground current. Ensure the design includes a 1µF low ESR output capacitor to maintain stability across the specified operating temperature range.

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

This part belongs to the FAN2558/9 family of low voltage LDOs. The family offers various fixed output voltages and adjustable options. It is designed for portable electronics requiring high ripple rejection and fast enable times. The SOT-23-5 package allows for compact surface-mount designs.

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

Compatible substitutes include other parts from the FAN2558 series with identical 1.3V outputs, such as FAN2558MP13X (MLP-6 package). Verify pinout compatibility and package dimensions before substitution.