BU2FSA4WGWL-E2

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

The BU2FSA4WGWL-E2 is a single-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 2.55 V with a maximum output current of 200 mA. The device operates within an input voltage range of 1.7 V to 5.5 V and features a typical ripple rejection ratio of 70 dB. It exhibits a typical dropout voltage of 80 mV and maintains a voltage regulation accuracy of ±0.6%. The component is housed in a WLCSP-4 package, 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 stable fixed voltage output for sensitive logic circuits
• Ensures high power supply noise suppression through significant ripple rejection
• Maintains precise voltage regulation under varying load conditions

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

• Power supply for general-purpose logic ICs
• Voltage regulation for RF circuit modules
• Power source for camera module components

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

Verify the specific suffix E2 against official ROHM documentation to confirm compliance with current environmental standards and manufacturing revisions. Ensure the ordering quantity aligns with the factory packaging configuration of 3000 units per reel. Cross-reference the datasheet revision date to validate that all electrical parameters match the intended design requirements before finalizing procurement.

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

Select this component when a compact footprint is required alongside low quiescent current consumption. The WLCSP-4 package offers space efficiency suitable for dense PCB layouts. Consider the 200 mA output capability and 2.55 V fixed output level to ensure compatibility with downstream digital loads requiring stable power delivery within the specified thermal operating range.

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

This part belongs to the BUxxSA4 series of high-performance CMOS LDO regulators from ROHM Semiconductor. The series is characterized by low circuit current and excellent noise characteristics. These regulators are designed to replace older linear regulator technologies in portable electronics where size and power efficiency are critical constraints for battery-operated devices.

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

Consult the official ROHM replacement list for verified equivalents. Generic LDO replacements may differ in package dimensions or electrical tolerances. Verify pinout compatibility and thermal performance before substituting.