BU19TD2WNVX-TL

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

The BU19TD2WNVX-TL is a fixed-output CMOS Low Dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 1.9 V output with a maximum continuous current of 200 mA. The device operates within an input voltage range of 1.7 V to 6 V and features a typical Power Supply Rejection Ratio (PSRR) of 70 dB. Key electrical parameters include a dropout voltage of 380 mV (maximum 600 mV), line regulation of 2 mV, and load regulation of 10 mV. Quiescent current is specified at 35 µA, with a power dissipation rating of 560 mW. Voltage accuracy is maintained at ±1%. The component supports surface-mount installation in an SSON-4 package (SSON004X1010-4) and functions reliably across a temperature range of -40°C to +85°C.

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

• High PSRR performance for effective noise suppression
• High-accuracy fixed voltage regulation
• Low quiescent current operation
• Compact surface-mount packaging

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

• Portable electronic devices requiring stable low-voltage rails
• Battery-powered systems needing efficient linear regulation
• Embedded circuits sensitive to power supply noise

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 configuration. Ensure the ordering part number matches the exact voltage and package variant required for your design. Cross-reference the datasheet revision date to confirm parameter validity. Confirm RoHS compliance status through the manufacturer's official product compliance declarations before finalizing procurement orders.

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

Select this component when a precise 1.9 V output is required with minimal external components. The 200 mA current capability suits moderate load applications. Consider the 600 mV maximum dropout voltage when designing for low headroom scenarios. Verify that the 35 µA quiescent current aligns with system power budget constraints. Ensure the operating temperature range meets environmental requirements.

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

This LDO belongs to the BU19TD2WNVX series from ROHM Semiconductor, categorized under PMIC - Power Management ICs. It is part of a family of high-accuracy CMOS regulators designed for portable electronics. The series emphasizes low noise and high rejection ratios, making it suitable for sensitive analog and digital circuitry in compact form factors.

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

Check ROHM's official replacement guide for direct substitutes. Verify pin compatibility and electrical specifications if considering alternative manufacturers. Ensure thermal performance and package dimensions match existing PCB layouts.