BU1CTD3WG-TR

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

The BU1CTD3WG-TR is a single-output low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It belongs to the BUxxTD3WG series, which features high-performance FULL CMOS architecture. The device provides a fixed positive output voltage with an accuracy of ±1.0% or ±25mV. It operates within an input voltage range supporting outputs from 1.0V to 3.4V and maintains a low quiescent current consumption of 35μA. The regulator is housed in a compact SSOP5 package measuring 2.9 mm × 2.8 mm × 1.25 mm.

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

• High ripple rejection capability suitable for noise-sensitive applications
• Compatible with small ceramic capacitors for minimal external component count
• Integrated output discharge circuit for rapid power-down response
• Built-in over-current protection and thermal shutdown circuits

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

• RF modules requiring stable power supply with low noise
• Camera modules in portable electronic devices
• Battery-powered portable equipment
• General-purpose low-noise power regulation in consumer electronics

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

Verify the specific output voltage variant required, as the BUxxTD3WG series includes multiple fixed voltage options. Confirm that the SSOP5 package dimensions align with the target PCB footprint. Ensure compatibility with the required input voltage range and load current specifications for the intended application environment.

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

Select this component when low noise and high ripple rejection are critical for RF or camera subsystems. The 35μA operating current makes it suitable for battery-operated devices where standby power consumption must be minimized. Verify that the load current does not exceed the 200mA rating and that the input-to-output voltage differential remains within the specified dropout limits.

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

This part is part of the BUxxTD3WG series of versatile package FULL CMOS LDO regulators. The series is designed to offer excellent noise characteristics and load responsiveness despite low circuit current consumption. The SSOP5 package provides a compact form factor similar to SOT-23-5, facilitating integration into space-constrained designs.

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

Check for other variants within the BUxxTD3WG series with different fixed output voltages if the electrical requirements differ. Consider the BD52xx series for supervisory functions, though these serve different purposes. Verify pinout compatibility if substituting with other SSOP5 regulators.