TPS70933QDRVRQ1

Texas Instruments TPS70933QDRVRQ1 Automotive LDO — 3.3 V, 150 mA, 30 V, 1‑µA IQ, WSON‑6

The Texas Instruments TPS70933QDRVRQ1 is an automotive‑qualified, fixed 3.3‑V low‑dropout (LDO) linear regulator designed for always‑on rails, ultra‑low standby systems, and modules that must tolerate high battery input voltages. As part of the TPS709‑Q1 family, it delivers up to 150 mA from inputs as high as 30 V while drawing only about 1 µA of typical quiescent current. An integrated enable pin supports low‑power shutdown, and built‑in protection features help safeguard the load and the regulator under fault conditions. Housed in a compact 2 mm × 2 mm WSON‑6 (DRV) package, this device is well‑suited for space‑constrained automotive and industrial designs.

Engineers, buyers, and sourcing managers will appreciate the combination of AEC‑Q100 qualification, robust 30‑V input capability, and ultra‑low IQ—all in a small, surface‑mount package that streamlines BOM selection and layout for modern ECUs, sensors, and battery‑powered electronics.

Key Highlights

• AEC‑Q100 qualified (Q1 suffix) for automotive applications
• Fixed 3.3‑V output up to 150 mA
• Broad 2.7 V to 30 V input voltage range
• Ultra‑low 1 µA (typ) quiescent current for long battery life
• Enable pin for shutdown to minimize standby draw
• Integrated overcurrent limit and thermal shutdown
• Tiny DRV (WSON‑6) 2 mm × 2 mm package; surface‑mount

Why choose the TPS70933QDRVRQ1 for automotive and low‑IQ designs?

• Battery protection with headroom: Many automotive rails begin at a vehicle battery or pre‑regulated bus that can experience surge and high input levels. The TPS70933QDRVRQ1 accepts up to 30 V on its input, offering ample margin for typical automotive conditions and simplifying front‑end selection.
• Standby efficiency: With a typical quiescent current of only about 1 µA, this regulator is optimized for keep‑alive rails and modules that remain powered while the vehicle is off. Reducing quiescent loss translates directly into longer battery life and compliance with stringent quiescent current budgets.
• Clean, simple post‑regulation: For digital ICs, sensors, and logic needing a stable 3.3‑V rail, a fixed‑voltage LDO reduces complexity and component count compared to adjustable solutions, while the enable pin allows precise power sequencing and remote shutdown.
• Automotive‑ready pedigree: The Q1 automotive qualification and an operating temperature range of −40 °C to +125 °C align with typical automotive requirements for reliability and environmental robustness.

Specifications

• Manufacturer/Brand: Texas Instruments
• Series: TPS709‑Q1
• Category: Linear Voltage Regulators (LDO)
• Regulator type: LDO (Low Dropout) – Fixed
• Fixed output voltage: 3.3 V
• Output current: 150 mA (max)
• Input voltage range: 2.7 V to 30 V
• Quiescent current (IQ): 1 µA (typ)
• Enable/Shutdown: Yes
• Automotive qualification: AEC‑Q100 (Q1 suffix)
• Operating temperature range: −40 °C to +125 °C
• Protections: Overcurrent limit, thermal shutdown
• Package code: DRV (WSON‑6)
• Package size: 2 mm × 2 mm
• Pin count: 6
• Mounting type: Surface Mount
• Packaging: Tape & Reel (suffix R)

Note: Dropout voltage, PSRR, start‑up behavior, and recommended external component values are not specified in datasheet here. Refer to the official TI datasheet for full electrical characteristics and design curves.

Electrical behavior overview

• Ultra‑low IQ operation: The typical ~1 µA quiescent current minimizes standby draw on vehicle batteries and primary energy sources.
• Enable control: The dedicated enable pin allows system controllers to fully disable the regulator for further power savings when rails are not needed.
• Integrated protection: Overcurrent limit and thermal shutdown enhance safety under fault conditions, aiding compliance with reliability requirements in automotive environments.

Applications

The Texas Instruments TPS70933QDRVRQ1 is well‑suited for:

• Automotive always‑on/keep‑alive rails
• Battery‑powered and low‑IQ systems
• Industrial and automotive sensors and modules
• General‑purpose post‑regulation from high‑voltage rails

Designers can deploy it as a standalone 3.3‑V supply from a high‑voltage source or as a quiet post‑regulator after a pre‑regulator or transient protection stage. Its compact DRV package helps shrink board area in dense modules.

Packaging, Part Number, and Ordering

• Full MPN: TPS70933QDRVRQ1
• Decoding the suffixes:
• 33: Fixed 3.3‑V output variant within the TPS709 family
• DRV: WSON‑6 package code (2 mm × 2 mm footprint)
• R: Tape & Reel packaging for automated assembly
• Q1: Indicates AEC‑Q100 automotive qualification
• Package: WSON‑6 (DRV), 2 mm × 2 mm
• Mounting: Surface Mount
• Pin count: 6

This compact package supports tight layouts and short traces, which can be advantageous for EMI control and thermal performance in space‑constrained assemblies.

Design‑in and integration notes

Because LDO performance depends on component selection and layout, consider the following when integrating the Texas Instruments TPS70933QDRVRQ1:

• Input voltage headroom: Ensure the input remains within the 2.7 V to 30 V operating range across all conditions, including cold crank, load dump protection stages, and transients. Specific dropout voltage is not specified in datasheet here; verify required headroom in the TI datasheet before finalizing tolerance stacks.
• Enable logic: Tie the enable pin to a supervised logic signal or pull it up/down per system requirements. This facilitates power sequencing and minimizes standby current when the rail is not needed.
• Thermal considerations: Although the device integrates thermal shutdown, thermal design remains essential. Use adequate copper area under the WSON thermal pad per TI’s recommendations to reduce junction temperature rise.
• Protection and fault response: The regulator includes overcurrent limit and thermal shutdown. Validate fault behavior in your system‑level context, especially when downstream loads could present large inrush or short conditions.
• Noise and filtering: For sensitive analog or RF subsystems, add appropriate input and output decoupling close to the pins and observe layout practices that minimize loop area. Specific capacitor values and stability criteria are not specified in datasheet here; consult the datasheet for recommended capacitor types and ESR ranges.
• EMC layout: Place the input bypass capacitor adjacent to the VIN/GND pins, minimize trace inductance, and use a solid ground return to mitigate conducted and radiated emissions typical of automotive harness environments.

Lifecycle, Compliance, and Quality

• Lifecycle status: Active (per Texas Instruments product page)
• Automotive qualification: AEC‑Q100 (Q1 suffix)
• Operating temperature range: −40 °C to +125 °C
• Environmental compliance: RoHS Compliant

These attributes align with common automotive qualification and environmental directives, simplifying PPAP and compliance documentation workflows when paired with TI’s official collateral.

Sourcing considerations

The Texas Instruments TPS70933QDRVRQ1 combines a high maximum input voltage with ultra‑low IQ in a small WSON package—an efficient choice for buyer shortlists focused on standby performance and space. Use the official TI resources below to confirm current inventory, lifecycle status, and to access the latest datasheet and quality documents. When creating an AVL, note:

• MPN: TPS70933QDRVRQ1
• Category: Linear Voltage Regulators (LDO)
• Package: DRV (WSON‑6), 2 mm × 2 mm
• Packaging: Tape & Reel (R suffix)
• Qualification: AEC‑Q100

For program builds that require long‑term availability, verify lead times via Texas Instruments’ product page or authorized distributors and consider second‑sourcing strategies at the board level (e.g., footprint and pinout compatibility) as appropriate to company policy. Direct, drop‑in replacements are not specified in datasheet here.

Alternatives and family context

No specific replacements or footprint‑compatible alternates are provided in the data set. If you require a different fixed output voltage or additional package options, consult the broader TPS709‑Q1 family information on TI’s website to review related variants and selection guidance.

Frequently Asked Questions (FAQs)

• Is TPS70933QDRVRQ1 automotive qualified?

• Yes. The Q1 suffix indicates AEC‑Q100 automotive qualification.

• What is the maximum input voltage?

• Up to 30 V.

• What is the typical quiescent current?

• Approximately 1 µA (typical).

• Is the output adjustable?

• No. This specific device is a fixed 3.3‑V LDO regulator.

• Does it include protection features?

• Yes. It integrates overcurrent limit and thermal shutdown.

• What is the operating temperature range?

• −40 °C to +125 °C.

• What is the package type and size?

• DRV (WSON‑6), 2 mm × 2 mm footprint.

• What is the pin count and mounting style?

• 6 pins, surface‑mount.

• What is the dropout voltage or PSRR?

• Not specified in datasheet here. Refer to the TI datasheet for full electrical characteristics.

• Can I disable the regulator to save power?

• Yes. Use the enable pin to shut down the device and minimize current draw.

Resources

• Product page (Texas Instruments): https://www.ti.com/product/TPS709-Q1
• Datasheet (Texas Instruments): https://www.ti.com/lit/ds/symlink/tps709-q1.pdf

Summary

The Texas Instruments TPS70933QDRVRQ1 is a compact, automotive‑qualified 3.3‑V LDO that stands out for its ultra‑low 1 µA typical quiescent current, broad 2.7 V to 30 V input range, and integrated protection features. Its DRV (WSON‑6, 2 mm × 2 mm) package saves board space while supporting up to 150 mA output current—ideal for keep‑alive rails, sensor modules, and general post‑regulation in vehicles and other battery‑powered systems. For teams balancing power budget, robustness, and BOM simplicity, the TPS70933QDRVRQ1 offers a straightforward path to a reliable 3.3‑V rail with the pedigree and documentation support expected from Texas Instruments.