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Power Controller IC targets automotive applications.

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April 11, 2012 - Dual output power supply, TPS43330-Q1 series, ensures stable and uninterrupted output voltages, even when input voltage drops significantly below output voltage levels such as with instances involving car's start/stop function. Input range of 2-40 V and transients up to 60 V ensure continued operation, while spread spectrum frequency modulation reduces conducted EMI. Along with multiple voltage rails and voltage supervisors, series integrates dedicated high-side FET driver.

TI Unveils Integrated Power Controller for Automotive Applications

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Texas Instruments, Inc., Semiconductors
12500 Texas Instruments Blvd.
Dallas, TX, 75243

Press release date: April 2, 2012

DALLAS -- Texas Instruments Incorporated (TI) (NASDAQ: TXN) today introduced a dual output power supply for automotive applications that ensures stable, uninterrupted output voltages, even in cases where the input voltage drops significantly below the output voltage levels. The start/stop function in many new car models increases fuel economy, but also leads to significant drops in the supply voltage when restarting the engine. The TPS43330-Q1 family remains fully functional during such voltage drops and ensures that applications continue to work without interruption or performance reduction. The devices' ultra-low quiescent current makes the use of a separate standby voltage supply unnecessary, thus reducing system cost and complexity. For more information, visit

Key features and benefits of the TPS43330-Q1 family:

-- Wide input voltage range of 2 V to 40 V and transients up to 60 V ensure continued operation, even under severe battery voltage conditions. -- Ultra-low quiescent current as low as 35 uA and lower shutdown current of 5 uA reduces the overall application power consumption from the battery in standby operation, extending battery lifetime and eliminating the need for a standby voltage regulator. -- Spread spectrum frequency modulation reduces conducted electromagnetic interference and allows for simpler, lower-cost filters. -- Individual enable and power good signals for both supply rails allow the customer flexible power sequencing based on specific application needs. -- Integration of multiple voltage rails and voltage supervisors reduces board space, design complexity and system cost compared to a discrete solution. -- Dedicated high-side FET driver enables overall efficiency improvement by bypassing the external reverse-battery protection diode with an external PMOS FET.

Tools and support

TI offers a variety of tools and support to speed design with the Power Stage Designer and Automotive Power reference design for PMP7001.1 and PMP7031. Evaluation modules are also available for the TPS43332-Q1, TPS43335-Q1, and TPS43336-Q1 devices.

In addition to the TPS43330-Q1 DC/DC controller, TI offers a large portfolio of power management ICs aimed at automobile applications, including step-down converters like the TPS57160-Q1 or PIMCs like the TPS65023-Q1. The LM25118Q buck-boost controller and TPIC74101-Q1 buck-boost converter help maintain stable output voltage over a wide supply voltage range.

Availability, packaging and pricing

Samples of the TPS43330-Q1 and TPS43332-Q1 are available now in an HTSSOP-38 (DAP) package. Suggested retail pricing for the TPS43330-Q1 family ranges from US $2.85 to $3.10 in 1000-unit quantities.

Find out more about TI's automotive and transportation portfolio by visiting the links below:

-- View TI's complete automotive and transportation portfolio: -- Download TI's Automotive and Transportation Selection Guide: -- Download TI's Hybrid and Electric Vehicle Solutions Guide: -- Join the TI E2E(TM) Automotive Community:

About Texas Instruments

Texas Instruments semiconductor innovations help 90,000 customers unlock the possibilities of the world as it could be - smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do - from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at


TI E2E is a trademark of Texas Instruments. All other trademarks and registered trademarks belong to their respective owners.

CONTACT: Laurene Richards of Texas Instruments +1-214-479-2058,; or Mary Dunnie of GolinHarris +1-972-341-2576,
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