TPS7A0318DBVR

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

The TPS7A0318DBVR is a fixed-output low-dropout linear regulator from the Texas Instruments TPS7A03 series. It provides a fixed 1.8 V output with a maximum load current of 200 mA. The device features an ultra-low quiescent current of 200 nA and operates within an input voltage range of 1.5 V to 6 V. It offers a typical power supply rejection ratio (PSRR) of 55 dB and maintains a maximum dropout voltage of 450 mV. The component supports surface-mount installation in a SOT-23-5 package and functions reliably across an extended temperature range from -40°C to +125°C.

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

• Ultra-low quiescent current for extended battery life in portable applications
• High power supply rejection ratio to minimize noise sensitivity
• Compact SOT-23-5 footprint suitable for space-constrained designs

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

• Battery-powered sensor nodes
• Portable medical devices
• Wearable electronics

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

Verify the exact part marking and datasheet revision against the manufacturer's official documentation before procurement. Confirm that the SOT-23-5 package variant matches your PCB footprint requirements. Ensure the fixed 1.8 V output aligns with your system voltage rails. Check for any specific environmental or RoHS compliance certificates required by your supply chain standards.

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

Select this component when nanowatt-level standby current is critical alongside moderate 200 mA load capabilities. The fixed 1.8 V output eliminates the need for external resistors, simplifying the design. Consider the 55 dB PSRR if the input source contains significant ripple. The wide input voltage range allows flexibility in battery selection, while the small package size aids in miniaturization efforts.

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

This regulator belongs to the TPS7A03 family, which focuses on nanopower performance. Unlike higher-current variants such as the TPS7A20 series, this model prioritizes minimal static current consumption over high-speed transient response. It serves as a dedicated power source for low-power microcontrollers and memory elements requiring stable 1.8 V logic levels.

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

The TPS7A0328DBVR is a direct substitute offering a 2.8 V fixed output instead of 1.8 V. For adjustable output options within the same series, consider the TPS7A03xxADBV variants. Verify pin compatibility and thermal characteristics when swapping between these closely related models.