TLV74318PDQNR3

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

The TLV74318PDQNR3 is a fixed-output low-dropout linear regulator (LDO) from Texas Instruments, providing a stable 1.8 V output with a maximum current of 300 mA. It operates within an input voltage range of 1.4 V to 5.5 V and features a typical quiescent current of 34 µA. The device ensures high accuracy with a typical DC output tolerance of 1% and maintains stability using only a 1-µF ceramic output capacitor. Key electrical parameters include a dropout voltage of 270 mV at 300 mA and a power-supply rejection ratio (PSRR) of 68 dB at 100 Hz.

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

• Ultra-small footprint utilizing the X2SON package for space-constrained designs
• Active pulldown circuit rapidly discharges output loads when disabled
• Foldback overcurrent protection safeguards against fault conditions during startup
• Stable operation guaranteed with minimal external component requirements

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

• Smartphones
• Tablets
• Portable industrial products
• Camera modules

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

Verify the specific suffix 'R3' corresponds to the required tape-and-reel packaging configuration before ordering. Confirm that the 4-pin X2SON thermal pad connection aligns with the target PCB ground plane design to ensure optimal thermal dissipation. Cross-reference the manufacturer's latest datasheet revision to validate pinout compatibility and ensure compliance with current RoHS standards.

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

Select this component when a compact form factor is critical alongside low standby power consumption. The 1.8 V fixed output makes it suitable for powering digital logic or RF sections requiring precise voltage regulation. Ensure the application load does not exceed 300 mA and that the input voltage remains within the specified operational range to maintain line regulation performance.

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

This part belongs to the TLV743P family of next-generation LDOs designed for portable consumer electronics. The family offers various fixed output voltages ranging from 1 V to 3.5 V. The PDQNR3 variant specifically denotes the 4-pin X2SON package option, distinguishing it from the SOT-23 package variants available within the same product series.

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

TLV74318PDQN