TPS79501DCQ

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

The TPS79501DCQ is a low-dropout linear voltage regulator from the Texas Instruments TPS795 series, housed in a SOT-223-6 surface-mount package. It provides an adjustable output voltage ranging from 1.2 V to 5.5 V with a maximum continuous output current of 500 mA. The device operates within an input voltage range of 2.7 V to 5.5 V and maintains a typical dropout voltage of 110 mV at full load. Quiescent current is specified at 265 uA, ensuring efficient operation in battery-powered applications. It features high power supply rejection ratio (PSRR) for noise-sensitive circuits and includes comprehensive protection mechanisms such as overcurrent limiting, thermal shutdown, reverse polarity protection, and undervoltage lockout.

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

• High PSRR performance optimized for RF and high-frequency noise suppression
• Fast rise time enabled by rapid RF high-enable functionality
• Integrated protection against overcurrent, thermal overload, reverse polarity, and undervoltage conditions

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

• Battery-powered portable electronic devices requiring stable regulation
• RF modules and wireless communication systems needing low-noise power supplies
• Embedded microcontroller systems with adjustable voltage requirements

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

Verify the specific suffix 'DCQ' corresponds to the tube packaging format when ordering. Confirm that the adjustable output configuration matches the target circuit design, as fixed-voltage variants exist within the same family. Ensure compatibility with the SOT-223-6 footprint during PCB layout. Check for any recent product change notices regarding assembly sites or material composition updates before finalizing procurement.

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

Select this component when an adjustable output voltage between 1.2 V and 5.5 V is required alongside high PSRR capabilities. It is suitable for designs prioritizing noise immunity in RF sections compared to standard LDOs. Consider the 500 mA current limit and 110 mV dropout voltage against the system's peak load and minimum input voltage constraints. The SOT-223-6 package offers a balance of thermal performance and board space efficiency for moderate current applications.

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

This part belongs to the TPS795 family of low-dropout regulators designed for high-performance analog and RF applications. Unlike the TPS796 series which offers higher current capacity, the TPS795 series focuses on optimizing PSRR and transient response for sensitive loads. The DCQ designation indicates a specific pin-compatible variant within the SOT-223-6 package family, distinct from automotive-grade Q1 versions or other package options like SON.

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

TPS79501DCQG4 is a verified lead-free and RoHS-compliant equivalent within the same functional specification.