TPS7A8018DRBT

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

The TPS7A8018DRBT is a fixed-output low-dropout linear regulator from the Texas Instruments TPS7A80 series. It provides a fixed 1.8 V output with a maximum continuous current of 1 A. The device operates within an input voltage range of 2.2 V to 6.5 V. Key electrical parameters include a typical power supply rejection ratio (PSRR) of 38 dB, a line regulation of 150 uV/V, and a load regulation of 2 uV/mA. The dropout voltage is typically 170 mV, with a maximum of 500 mV. It functions in a positive polarity configuration and supports an operating temperature range from -40°C to +125°C.

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

• High power supply rejection ratio for effective noise suppression
• Ultra-low dropout voltage capability for efficient power management
• Fixed 1.8 V output voltage for precise rail generation
• Integrated thermal and overcurrent protection mechanisms

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

• Powering RF front-end modules requiring clean supply rails
• Biasing operational amplifiers in precision analog circuits
• Supplying power to high-speed data converters
• Providing regulated voltage for sensor interfaces

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

Verify the specific suffix DRBT against the manufacturer's official datasheet to confirm the SON-8 package type and reel packaging specifications. Ensure that the fixed 1.8 V output variant matches the design requirements, as other output voltages exist within the same TPS7A80 family. Confirm moisture sensitivity level handling procedures during assembly to prevent damage.

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

Select this component when a stable 1.8 V rail is required at up to 1 A with minimal voltage drop. The high PSRR makes it suitable for noise-sensitive applications compared to standard LDOs. Consider the 8-SON package constraints for PCB layout. Verify that the input voltage remains above the minimum 2.2 V threshold under all operating conditions to ensure proper regulation.

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

This part belongs to the TPS7A80 family of wide-bandwidth, high-PSRR linear regulators designed for demanding analog and RF applications. The TPS7A8018DRBT specifically denotes the 1.8 V fixed output version. Other variants in the series offer different fixed voltages or adjustable outputs, sharing similar performance characteristics such as low dropout and high current capability.

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

Direct substitutes within the same family include TPS7A8012DRBT (1.2 V output) and TPS7A8050DRBT (5.0 V output), provided the voltage requirement differs. For adjustable output needs, the TPS7A8001DRBT serves as a functional alternative with similar electrical profiles but requires external feedback components.