BU6651NUX-TR

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

The BU6651NUX-TR is a CMOS LDO voltage regulator IC from ROHM Semiconductor, housed in an 8-pin VSON package. It provides three fixed output voltages: 1.5 V, 1.8 V, and 2.8 V. The device supports a maximum output current of 200 mA per channel with an input voltage range of 2.5 V to 5.5 V. Key electrical parameters include a typical ripple rejection of 65 dB, line regulation of 2 mV, and load regulation of 10 mV. Quiescent current is 285 uA, and the operating temperature range spans from -40°C to +85°C.

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

• Integrates three independent low-dropout regulators within a single compact surface-mount package.
• Provides high-precision fixed output voltages with ±1% accuracy for stable power delivery.
• Includes built-in protection features such as thermal shutdown, over-current protection, and output discharge circuits.

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

• Power supply circuits for portable electronic devices requiring multiple voltage rails.
• Embedded systems utilizing microcontrollers or memory components needing 1.5V, 1.8V, and 2.8V supplies.
• Battery-operated equipment where low quiescent current and wide input voltage ranges are critical.

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix and packaging type matches project requirements. Check for end-of-life status or recommended alternatives if sourcing for new designs. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet to prevent damage during assembly.

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

Select this component when a multi-output LDO solution is required to save board space. Consider the 200 mA current limit per output against total system load demands. Evaluate the 2.5 V minimum input voltage against the lowest expected battery or supply voltage. Verify that the VSON-8 package footprint aligns with existing PCB layout constraints and thermal management strategies.

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

This part belongs to the BU665xNUX series of high-speed load response CMOS LDO regulators. It shares similar package dimensions and protection features with variants like the BU6650NUX and BU6652NUX, differing primarily in the specific combination of fixed output voltages provided. The series targets applications requiring efficient power management in small form factors.

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

Direct substitutes include BU6650NUX-TR and BU6652NUX-TR, which share the same package and general specifications but offer different fixed output voltage combinations. Verify that the alternative outputs match the target circuit requirements before substitution.