BU2JUA3WNVX-TL

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

The BU2JUA3WNVX-TL is a single-output fixed low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It belongs to the BUxxUA3WNVX series and utilizes CMOS technology for power management applications. The device provides a fixed output voltage of 2.0 V with a maximum continuous output current capability of 300 mA. It operates within an input voltage range from a minimum of 1.7 V to a maximum of 5.5 V. The regulator features a typical power supply rejection ratio (PSRR) of 70 dB at 1 kHz, ensuring effective noise suppression. The component is housed in a compact DFN-4 surface-mount package, specifically identified as SSON004X1010, suitable for space-constrained designs.

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

• Provides a stable fixed 2.0 V output voltage regulated from a wide input voltage range up to 5.5 V.
• Delivers high load current capability of 300 mA while maintaining low dropout performance.
• Incorporates internal protection mechanisms including overcurrent protection and thermal shutdown to safeguard against fault conditions.

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

• Power regulation for portable electronic devices requiring stable low-voltage rails.
• Supply conditioning for microcontrollers and digital logic circuits operating at 2.0 V.
• Battery-powered systems utilizing linear regulation for low-noise power delivery.

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

Verify the specific output voltage configuration before procurement, as the BUxxUA3WNVX series contains multiple variants with different fixed output voltages ranging from 1.1 V to 3.0 V. Confirm that the DFN-4 (SSON004X1010) package matches your PCB footprint requirements. Check the official datasheet for precise thermal resistance values and derating curves to ensure adequate heat dissipation under your expected load and ambient temperature conditions.

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

Select this component when a fixed 2.0 V rail is required with moderate current demands up to 300 mA. Ensure the input voltage remains above the minimum threshold of 1.7 V to maintain regulation. Consider the 70 dB PSRR specification if noise sensitivity is a concern in the application environment. Verify compatibility with the DFN-4 package for automated assembly processes and confirm that the operating temperature range meets the system's environmental specifications.

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

This part is a member of the BUxxUA3WNVX family of LDO regulators from ROHM Semiconductor. Similar parts in this series include BU11UA3WNVX-TL, BU18UA3WNVX-TL, BU22UA3WNVX-TL, and BU25UA3WNVX-TL, which share identical packaging and general electrical characteristics but differ primarily in their fixed output voltage settings. All variants utilize the same SSON004X1010 footprint and offer comparable current handling and protection features.

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

Direct substitutes within the same series include BU11UA3WNVX-TL, BU18UA3WNVX-TL, BU22UA3WNVX-TL, BU25UA3WNVX-TL, BU28UA3WNVX-TL, and BU30UA3WNVX-TL. These alternatives share the same DFN-4 package and 300 mA current rating but provide different fixed output voltages. Ensure the replacement voltage matches the target circuit requirement before substitution.