FAN25800AUC33X-ON

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

The FAN25800AUC33X-ON is a low-dropout (LDO) linear regulator manufactured by onsemi, designed for compact power management applications. It provides a fixed 3.3 V output with a maximum load current of 250 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and maintains high accuracy with a load regulation of 35 μV/mA. Packaged in a 4-pin WLCSP measuring 0.65 x 0.65 mm, it supports surface-mount installation and functions reliably across a temperature range of -40 °C to +85 °C.

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

• Provides a stable fixed 3.3 V output voltage suitable for sensitive digital loads
• Features ultra-small 4-pin WLCSP packaging for space-constrained designs
• Ensures precise voltage regulation with minimal load regulation drift

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

• Portable consumer electronics requiring compact power solutions
• Battery-powered devices operating within the specified input voltage range
• Embedded systems needing stable 3.3 V logic supply rails

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

Verify the specific suffix '33X' confirms the fixed 3.3 V output variant, as other suffixes may indicate different voltages or packages. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure the WLCSP footprint matches the PCB layout design rules provided in the datasheet. Check for any recent product change notices regarding manufacturing site or material composition updates.

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

Select this component when a small form factor is critical and the load current does not exceed 250 mA. It is appropriate for single-output applications requiring fixed voltage regulation without external feedback networks. Consider thermal performance if the input-to-output voltage differential results in significant power dissipation within the limited package area.

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

This part belongs to onsemi's LDO regulator portfolio, specifically utilizing TinyPower packaging technology. It serves as a power management integrated circuit (PMIC) solution for mobile and handheld devices. The WLCSP format allows for direct wafer-level chip-scale packaging, reducing assembly steps and board space compared to traditional leaded packages.