BU31TD2WNVX-TL

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

The BU31TD2WNVX-TL is a fixed positive single-output CMOS LDO regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 3.1 V with a maximum output current of 200 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical ripple rejection ratio of 70 dB. It exhibits a typical dropout voltage of 240 mV and maintains a quiescent circuit current of 35 uA. The unit offers a voltage regulation accuracy of 1% and functions reliably across an operating temperature range from -40°C to +85°C.

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

• High-accuracy detection with ±1.0% output voltage tolerance
• Low current consumption of 35 μA for battery-powered applications
• Compatible with small ceramic capacitors (Cin=Co=0.47uF)
• Built-in over-current protection and thermal shutdown circuits

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

• Power supplies for logic ICs
• RF module power supplies
• Camera module power supplies
• Battery-powered portable equipment

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

Verify the specific suffix TL against official ROHM documentation to confirm tape-and-reel packaging specifications. Ensure the selected variant matches the required 3.1 V fixed output and SSON004X1010 package dimensions. Cross-reference the manufacturer part number with authorized distributor databases to validate authenticity and current production status before finalizing procurement orders.

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

Select this component when a stable 3.1 V rail is required for sensitive analog or digital loads in space-constrained designs. The low quiescent current makes it suitable for battery-operated devices where standby power efficiency is critical. Verify that the load current does not exceed 200 mA and that the input voltage remains within the specified 1.7 V to 6 V window for proper regulation.

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

This component belongs to the BUxxTD2WNVX series of high-performance FULL CMOS regulators. The series is characterized by its versatility in package options, specifically the compact SSON004X1010 footprint measuring 1.00mm × 1.00mm × 0.60mm. These regulators are engineered to deliver robust noise performance and load responsiveness despite minimal internal power consumption.

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

BU31UA3WNVX-TL: Offers similar functionality but with a 300 mA output current capability and DFN-4 package.