BU12TD3WG-TR

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

The BU12TD3WG-TR is a single-channel, fixed-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a maximum output current of 200 mA with a typical dropout voltage of 0.6 V at full load. The device features a low circuit current consumption of 35 μA and maintains an output voltage accuracy of ±25 mV at 25°C. It operates within an input voltage range of 1.7 V to 6 V and supports an operating temperature range from -40°C to +85°C. The regulator includes built-in protection circuits for overcurrent and thermal shutdown, along with an output discharge function.

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

• High-performance FULL CMOS architecture designed for low noise and excellent load responsiveness.
• Integrated safety mechanisms including overcurrent protection, thermal shutdown, and output discharge circuitry.
• Compatible with small ceramic capacitors, enabling compact board layouts.

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

• Power supplies for logic ICs
• RF module power supplies
• Camera module power supplies

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

Verify the specific output voltage variant required, as the BU**TD3WG series encompasses multiple fixed voltage options. Confirm that the SSOP5 package dimensions align with the target PCB footprint. Ensure the application does not require automotive qualification, as this standard-grade product is explicitly not recommended for车载 equipment. Check datasheet specifications for minimum output capacitance requirements to ensure stability.

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

Select this component when a 200 mA output current is sufficient for the load while minimizing quiescent current consumption. It is suitable for battery-powered portable equipment where low circuit current extends operational life. Consider the 0.6 V typical dropout voltage when designing for low input-to-output voltage differentials. Verify that the required fixed output voltage is available within the BU12TD3WG-TR family variants.

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

This part belongs to the BUxxTD3WG series of versatile package FULL CMOS LDO regulators. The series is characterized by its high performance in a small SSOP5 package (2.9 mm × 2.8 mm × 1.15 mm). It serves as a general-purpose power management solution for portable electronics, offering a balance between efficiency, noise performance, and physical size constraints common in modern consumer devices.

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

BD5220G-1 is listed as a replacement for the BU4220G, but no direct public substitute is confirmed for the BU12TD3WG-TR in the provided data. Users should consult official ROHM documentation for cross-reference recommendations or evaluate other members of the BUxxTD3WG series if voltage or current requirements differ.