Texas Instruments TPS43340QPHPRQ1

Overview

TPS43340QPHPRQ1 from Texas Instruments is an automotive quad-output power-supply IC integrating two synchronous buck controllers, one asynchronous buck converter, and one LDO regulator. The device is designed for vehicle and industrial systems that need several regulated rails from a wide input supply while scaling high-current outputs with external MOSFETs.

As part of the TPS43340-Q1 product family, TPS43340QPHPRQ1 supports 4V to 40V input operation, dual current-mode buck controllers, an internal buck converter, an LDO output, adjustable switching frequency, and a thermally enhanced 38-pin HTQFP PowerPAD package. For engineers reviewing the TPS43340QPHPRQ1 datasheet, TPS43340QPHPRQ1 pinout, TPS43340QPHPRQ1 application, or TPS43340QPHPRQ1 equivalent, this device is widely used in automotive infotainment, cluster systems, ADAS control boards, body electronics, industrial controllers, and multi-rail vehicle power architectures.

Technical Context

In automotive electronics, TPS43340QPHPRQ1 operates as a quad-output supply where two controller channels drive external synchronous buck stages, one integrated asynchronous buck converter supplies an additional rail, and the LDO regulator provides a linear auxiliary output.

The 4V to 40V input range supports vehicle battery environments, while the adjustable 150kHz to 600kHz switching frequency lets designers balance EMI, efficiency, and inductor size. External MOSFET controller channels allow current capability and thermal performance to be tailored to the system load.

TPS43340QPHPRQ1 is commonly used when one PMIC must generate multiple automotive rails with a mixture of scalable controller outputs, integrated switching conversion, and linear regulation.

Key Specifications

Pinout & Package

The TPS43340QPHPRQ1 pinout includes wide input supply pins, external buck-controller gate-drive pins, buck converter switch pins, LDO output pins, feedback/compensation nodes, enable/status controls, and PowerPAD ground.

For PCB design, external MOSFET loops should be compact, buck converter switching copper should be controlled, feedback traces should avoid noisy nodes, and the PowerPAD should be connected to thermal copper.

Key Features

• Four regulated outputs support complex vehicle power trees.
• Two external-MOSFET buck controllers allow scalable current rails.
• Integrated asynchronous buck converter adds a compact switching output.
• LDO output supports linear auxiliary regulation.
• 4V to 40V input range supports automotive supply variation.
• AEC-Q100 qualification supports vehicle electronics.

Applications

Equivalent & Alternatives

When evaluating a TPS43340QPHPRQ1 equivalent, engineers should compare rail count, controller versus integrated power-stage topology, input range, switching frequency, LDO output, package, and automotive qualification.

Compared with TPS65321QPWPRQ1, TPS43340QPHPRQ1 provides a broader four-output architecture with external controller channels. TPS43340QPHPRQ1 vs A81407KLVATR selection depends on rail topology, diagnostics/control interface, package, and automotive system requirements.

Quality

TPS43340QPHPRQ1 should be sourced as original Texas Instruments components through traceable channels. Quality checks may include HTQFP package inspection, top-mark validation, solderability testing, and multi-output electrical verification.

Production validation should include buck-controller gate-drive behavior, integrated buck regulation, LDO output, thermal performance, automotive transient behavior, and power-good timing.

Availability

TPS43340QPHPRQ1 available at Aetrix Electronics and is suitable for automotive infotainment, clusters, ADAS, body electronics, and industrial multi-rail power systems.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming AEC-Q100 grade, package, rail-current budget, external MOSFET selection, lifecycle status, and sourcing continuity helps reduce procurement risk.

Manufacturer

Texas Instruments is a global semiconductor manufacturer specializing in analog ICs, embedded processors, power-management devices, interface products, sensing solutions, and industrial semiconductor technologies.

The TPS43340-Q1 product family is a Texas Instruments automotive quad-output supply series with two synchronous buck controllers, one buck converter, and one LDO for multi-rail vehicle power systems.

FAQ

What is TPS43340QPHPRQ1 used for?

TPS43340QPHPRQ1 is used for automotive infotainment, clusters, ADAS, body electronics, and industrial systems requiring four regulated outputs.

Where can I find the TPS43340QPHPRQ1 datasheet download?

The TPS43340QPHPRQ1 datasheet is available from Texas Instruments and includes controller operation, package data, pin functions, and application circuits.

What should be considered in TPS43340QPHPRQ1 pinout design?

Designers should route external MOSFET gate-drive loops compactly, keep feedback away from switch nodes, and use PowerPAD thermal copper.

How many outputs does TPS43340QPHPRQ1 provide?

It provides two buck-controller outputs, one integrated buck-converter output, and one LDO output.

What are common TPS43340QPHPRQ1 equivalent solutions?

Common candidates include TPS65321QPWPRQ1 and A81407KLVATR depending on rail count, topology, package, and automotive control requirements.