BU34TD3WG-TR

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

The BU34TD3WG-TR is a fixed positive Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 3.4 V with a maximum output current of 200 mA. The device operates within an input voltage range of 2.5 V to 5.5 V and features a typical dropout voltage of 300 mV at full load, with a maximum of 600 mV. Key electrical specifications include a quiescent current of 40 µA, line regulation of 2 mV, and load regulation of 20 mV. Power dissipation is rated at 410 mW. The component offers high ripple rejection with a typical PSRR of 65 dB. It is housed in an HVSOF-5 surface-mount package and supports an operating temperature range from -40°C to +85°C.

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

• Built-in output discharge circuit for rapid capacitor discharge upon shutdown
• Compatible with small ceramic capacitors (Cin=Co=0.47µF) for stable operation
• Integrated over-current protection and thermal shutdown circuits for enhanced reliability

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

• Battery-powered portable equipment
• RF modules requiring low noise power supplies
• Camera modules in mobile devices

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

Verify the specific suffix 'WG' and 'TR' to confirm the HVSOF-5 package and reel packaging format. Ensure the design accounts for the 410 mW power dissipation limit under maximum load conditions. Confirm RoHS compliance status via the manufacturer's latest documentation before finalizing procurement orders.

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

Select this component when a fixed 3.4 V output is required with moderate current capability up to 200 mA. It is suitable for space-constrained designs due to the compact HVSOF-5 package. Consider the 40 µA quiescent current for battery life optimization. Verify that the input voltage remains above 2.5 V and below 5.5 V during all operating conditions.

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

This part belongs to the BUxxTD3WG series of FULL CMOS LDO regulators from ROHM. These regulators are designed for high performance with low current consumption and excellent noise characteristics. The series is optimized for applications such as RF and camera modules where stability and low power are critical. The BU34TD3WG-TR specifically provides the 3.4 V variant within this family.

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

BU33TD3WG-TR (3.3 V output)

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

What is the minimum input voltage required for the BU34TD3WG-TR?

The minimum operating input voltage is 2.5 V.

Does the BU34TD3WG-TR include protection features?

Yes, it includes built-in over-current protection and thermal shutdown circuits.