TLV74318PDBVR TLV743P Low-Dropout Linear Regulator LDO
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TLV74318PDBVR TLV743P Low-Dropout Linear Regulator | Brand New 300mA LDO
The TLV74318PDBVR (TLV743P family) is a compact, high-efficiency low-dropout linear regulator from Texas Instruments, engineered as a clean power management solution for space-constrained electronic designs. With a 300mA output, 1% typical accuracy, and exceptional line and load transient performance, this LDO delivers stable 1.8V power exactly where downstream rails need to be quiet and predictable.
The TLV74318PDBVR is stable with a small output capacitor — useful in dense PCB layouts — and includes foldback current control to keep battery-operated and always-on designs running without unnecessary drain. Combined with a low quiescent current of 60µA, it suits portable, sensor, and embedded applications where every microamp counts.
Exceptional Accuracy, Stability, and Transient Performance
The TLV74318PDBVR provides a positive, fixed 1.8V output with only 0.3V dropout at full 300mA load — meaning a 5.5V input rail can comfortably feed it through a wide operating window. Built-in current limit, thermal shutdown, and UVLO protection layers guard the part and downstream circuitry against overload, thermal runaway, and brown-out conditions. PSRR runs from 68dB at 100Hz down to 28dB at 100kHz, giving designers strong supply rejection across the audio and low-RF range.
Where the TLV74318PDBVR Fits
The TLV74318PDBVR is a workhorse for cleaning up the output of an upstream DC-DC converter or battery rail before it reaches sensitive analog or digital blocks. The SC-74A / SOT-753 surface-mount package makes placement straightforward on tight boards, and the part operates over a junction temperature range of -40°C to +125°C — wide enough for industrial and automotive-adjacent designs.
TLV74318PDBVR Technical Features
| Parameter | Specification |
|---|---|
| Manufacturer | Texas Instruments |
| Category | PMIC — Voltage Regulators (Linear) |
| Base Product Number | TLV74318 |
| Output Configuration | Positive, Fixed |
| Number of Regulators | 1 |
| Voltage Input (Max) | 5.5V |
| Voltage Output (Fixed) | 1.8V |
| Voltage Dropout (Max) | 0.3V @ 300mA |
| Output Current | 300mA |
| Quiescent Current (Iq) | 60µA |
| PSRR | 68dB ~ 28dB (100Hz ~ 100kHz) |
| Control Features | Enable |
| Protection Features | Current Limit, Thermal Shutdown, UVLO |
| Operating Temperature | -40°C to +125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Packaging | Tape & Reel (TR) |
| Product Status | Active |
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