BU18TD3WG-TR

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

The BU18TD3WG-TR is a fixed positive low-dropout (LDO) linear regulator manufactured by ROHM Semiconductor. It belongs to the BUxxTD3WG series, designed as a high-performance FULL CMOS regulator with a 200 mA output current capability. The device operates within an input voltage range of 1.7 V to 6 V and provides a fixed output voltage of 1.8 V with ±1.0% accuracy. It features a typical quiescent current consumption of 35 μA and supports operation across a temperature range of -40°C to +85°C. The component is housed in an SSOP-5 package measuring 2.9 mm × 2.8 mm × 1.25 mm.

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

• High ripple rejection performance suitable for noise-sensitive applications
• Compatible with small ceramic capacitors for compact circuit design
• Built-in output discharge circuit for rapid power-down
• Integrated over-current protection and thermal shutdown circuits

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

• RF modules requiring stable low-noise power supply
• Camera modules in portable electronic devices
• Battery-powered portable equipment
• General-purpose low-voltage digital logic circuits

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

Verify the specific suffix and marking code against the official ROHM datasheet to confirm the 1.8 V output variant. Ensure the SSOP-5 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement specifications.

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

Select this component when a fixed 1.8 V rail is required with minimal external components. The 200 mA output current supports moderate load demands while maintaining low static current consumption. Verify that the input voltage remains within the specified 1.7 V to 6 V range to ensure proper regulation and dropout voltage characteristics under all operating conditions.

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

This part is part of the BUxxTD3WG series of FULL CMOS LDO regulators from ROHM Semiconductor. The series is characterized by its versatility in package options and suitability for portable electronics. The BU18TD3WG-TR specifically denotes the reel-packaged version of the 1.8 V output variant within this family.

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

BU24TD3WG-TR offers a similar 200 mA performance profile but provides a different fixed output voltage. Cross-reference pinouts and electrical specifications carefully to ensure compatibility with existing circuit designs.