FAN2564UC12X

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

The FAN2564UC12X is a low input voltage linear regulator (LDO) designed for digital applications. It provides a fixed positive output voltage of 1.2V with a maximum output current of 300mA. The device features a low dropout voltage of 0.16V at full load and operates within an input voltage range up to 3.6V. It includes built-in short circuit protection, thermal shutdown, and an enable control pin. The component is housed in a compact 4-WLCSP package measuring 1.41x0.93mm and supports surface mount mounting.

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

• Provides stable fixed output voltage suitable for powering digital logic circuits
• Integrates short circuit protection and thermal shutdown for enhanced reliability
• Features low dropout performance to maintain regulation under varying load conditions
• Includes enable control functionality for power management optimization

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

• Powering digital logic families requiring low noise supply rails
• Battery-powered portable devices utilizing low input voltage sources
• Embedded systems requiring compact surface-mount voltage regulation

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

Verify the specific suffix UC12X to confirm the 1.2V fixed output voltage variant. Confirm package type as 4-WLCSP (1.41x0.93mm). Check manufacturer status as some listings indicate this part may be obsolete or discontinued by Fairchild Semiconductor/onsemi. Ensure RoHS compliance documentation is available if required for your assembly process.

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

Select this component when a fixed 1.2V rail is needed from a low input source up to 3.6V. It is appropriate for applications prioritizing low noise and compact size over high efficiency. Consider alternative LDOs if higher output currents or adjustable output voltages are required. Verify that the 300mA current limit meets the peak demand of the target digital load.

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

This part belongs to the FAN2564 series of low VIN LDOs from Fairchild Semiconductor. Other variants in the series include different fixed output voltages such as 1.3V, 1.5V, and 1.8V, identified by their respective suffixes. The series is designed specifically for digital applications requiring clean power supplies in space-constrained environments.

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

Direct substitutes include other FAN2564 variants with different output voltages if the voltage requirement changes. Cross-reference with onsemi equivalents if Fairchild parts are unavailable. Verify pinout compatibility before substituting with generic LDOs.