BU6654NUX-TR

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

The BU6654NUX-TR is a CMOS LDO voltage regulator IC featuring three fixed output channels. It operates within an input voltage range of 2.5 V to 5.5 V, delivering a maximum output current of 200 mA per channel. The device provides fixed output voltages of 1.5 V, 1.8 V, and 3.3 V with a line regulation of 2 mV and load regulation of 10 mV. Typical ripple rejection ratios are 65 dB and 70 dB. Quiescent current is 285 uA, and power dissipation is rated at 660 mW. It functions in temperatures from -40°C to +85°C.

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

• Integrates three independent low-dropout regulators in a single compact package for multi-rail power distribution.
• Includes built-in protection mechanisms such as thermal shutdown, over-current protection, and output discharge circuits.
• Offers high precision voltage regulation with ±1% accuracy and high ripple rejection capabilities.

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

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems needing efficient linear regulation
• Embedded control circuits with strict noise sensitivity requirements

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

Verify the component status before procurement, as it is marked NRND (Not Recommended for New Designs). Confirm that the VSON-8 package dimensions match your PCB footprint. Ensure the fixed output voltages meet system requirements since they cannot be adjusted externally. Check RoHS compliance documentation if required by your manufacturing standards.

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

Select this component when a compact solution for three distinct fixed voltages is needed. It is suitable for applications where low noise and high ripple rejection are prioritized over efficiency compared to switching regulators. Consider the 200 mA current limit per channel to ensure it meets the load demands of all connected subsystems simultaneously.

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

This part belongs to the BU6654NUX series of multi-output LDO regulators manufactured by ROHM Semiconductor. It is designed for space-constrained applications requiring simultaneous generation of standard logic and analog supply voltages. The VSON-8 package allows for high-density board mounting while maintaining thermal performance within specified operating limits.

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

Check for direct pin-compatible alternatives within the same series or newer generations. Verify that any substitute maintains the same output voltage configuration and current ratings. Ensure the replacement supports the required operating temperature range and package type.