BU12UA3WNVX-TL

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

The BU12UA3WNVX-TL is a single-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.2 V with a maximum output current capability of 300 mA. The device operates within an input voltage range of 1.7 V to 5.5 V and features a typical power supply rejection ratio (PSRR) of 70 dB. It exhibits a dropout voltage of 350 mV, with a maximum line regulation of 2 mV and load regulation of 25 mV. The quiescent operating current is 50 uA, and the maximum power dissipation is 560 mW. Voltage accuracy is maintained at 1%. The component is housed in a DFN-4 surface-mount package and supports operation from -40 C to +85 C.

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

• Fixed 1.2 V output voltage with high accuracy regulation
• Low dropout performance for efficient power management
• High power supply rejection ratio for noise reduction
• Compact DFN-4 surface mount packaging

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

• Portable electronic devices requiring stable low voltage rails
• Battery-powered systems needing efficient linear regulation
• Embedded circuits utilizing CMOS logic families
• General purpose power management in compact form factors

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

Verify the specific ordering suffix and manufacturer part number against official ROHM documentation before procurement. Confirm that the DFN-4 package type matches your PCB footprint requirements. Check the latest datasheet for any updates to electrical characteristics or thermal parameters. Ensure compliance with RoHS directives as specified in the product environmental files. Note that availability status may vary; consult authorized distributors for current stock levels and lead times.

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

Select this regulator when a precise 1.2 V output is required with moderate current demands up to 300 mA. Consider the 1.7 V minimum input voltage constraint for battery applications. Evaluate the 50 uA quiescent current for low-power standby modes. The DFN-4 package suits space-constrained designs. Verify thermal dissipation capabilities given the 560 mW limit under expected operating conditions.

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

This component belongs to the BU12UA3WNVX series of LDO regulators from ROHM Semiconductor. It is categorized under PMIC - Power Management ICs. The series offers various fixed output voltages tailored for different digital logic levels. The BU12UA3WNVX-TL specifically targets applications requiring a 1.2 V rail. It shares common family features such as CMOS architecture and surface-mount packaging options.

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

Check for direct substitutes within the same ROHM series offering identical 1.2 V output and 300 mA current rating. Verify pin compatibility and package dimensions if replacing with other manufacturers' parts. Ensure equivalent electrical specifications including dropout voltage and PSRR are met.