BU29TA2WHFV-TR

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

The BU29TA2WHFV-TR is a low-dropout CMOS linear voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 2.9 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 power supply rejection ratio (PSRR) of 65 dB. Key electrical parameters include a typical dropout voltage of 330 mV, a line regulation of 2 mV, and a load regulation of 20 mV. The quiescent circuit current is 40 uA, and the maximum power dissipation is 410 mW. It supports a positive polarity output and functions reliably across an operating temperature range from -40°C to +85°C.

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

• CMOS LDO regulator architecture designed for low power consumption
• High ripple rejection capability for stable noise-sensitive applications
• Integrated protection mechanisms including thermal shutdown and over-current protection

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

• Power supply for logic integrated circuits
• Power source for radio frequency modules
• Power supply for camera modules

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

Verify the specific ordering suffix and package variant against the manufacturer's official datasheet to ensure compatibility with design requirements. Confirm RoHS compliance status and check for any end-of-life notices or obsolescence warnings prior to procurement. Ensure that the selected component matches the required output voltage accuracy and thermal performance specifications for the intended application environment.

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

Select this component when a fixed 2.9 V output is required with up to 200 mA load capacity in a compact surface-mount form factor. Consider the HVSOF-5 package dimensions for PCB layout constraints. Evaluate the 40 uA quiescent current against system power budgets. Verify that the input voltage range of 2.5 V to 5.5 V aligns with the available supply rails and that the thermal dissipation capabilities are sufficient for the expected ambient conditions.

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

This part belongs to the BU**TA2W series of high-performance full CMOS regulators from ROHM. The series utilizes ultra-small packages such as SSON004X1216 and HVSOF5 to support space-constrained designs. These regulators are characterized by low circuit current, excellent noise characteristics, and fast load response times, making them suitable for various portable electronic devices and embedded systems requiring efficient power management.

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

BU29TA2WNVX-TR offers similar electrical specifications but utilizes the SSON004X1216 package instead of HVSOF5. Designers must verify pinout compatibility and physical footprint differences before substituting. Other variants within the BU29TA2 family may provide different output voltages while maintaining comparable current and package options.