FAN2559MP13X

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

The FAN2559MP13X is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides a fixed 1.3V output with a maximum load current of 180mA. The device operates from an input voltage range up to 5.5V and features a typical dropout voltage of 1V at full load. Key electrical characteristics include a quiescent current of 150µA and a power supply rejection ratio (PSRR) of 50dB at 100kHz. It is housed in a compact 6-DFN package measuring 2x2mm with an exposed pad for thermal dissipation.

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

• Integrated enable pin and power-good status indicator for system management
• Built-in overcurrent protection and thermal shutdown for enhanced reliability
• Low quiescent current operation suitable for battery-powered applications

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

• Portable electronic devices requiring stable low-voltage rails
• Embedded systems utilizing CMOS logic families
• Battery-operated equipment needing efficient power regulation

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

Verify the manufacturer designation as onsemi or Fairchild Semiconductor depending on the production era. Confirm the package type is 6-DFN (2x2mm) with an exposed thermal pad. Ensure the output voltage is strictly 1.3V fixed. Check RoHS compliance status and lead-free markings on the component body. Validate the part against official datasheets for accurate pinout configuration.

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

Select this component when a fixed 1.3V rail is required with moderate current demands up to 180mA. Consider the 5.5V maximum input voltage limit for compatibility with single-cell lithium batteries or USB sources. Evaluate the 150µA quiescent current impact on overall system efficiency. The 6-DFN package offers a small footprint but requires adequate PCB thermal design due to the exposed pad.

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

This part belongs to the FAN2559 series of LDO regulators, which are designed for portable electronics. The series includes various fixed output voltages such as 1.0V, 1.5V, 1.8V, and others, all sharing similar electrical characteristics and packaging. The FAN2559MP13X specifically targets applications needing precise 1.3V regulation with high PSRR and fast transient response capabilities.

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

Compatible substitutes within the same family include FAN2559MP10X (1.0V), FAN2559MP15X (1.5V), and FAN2559MP18X (1.8V). These parts share identical pinouts and packages but differ only in the fixed output voltage setting. Verify that the target application circuit can accommodate the specific voltage level of the replacement part.