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The TPS43330AQDAPRQ1 contains two current-mode synchronous buck controllers and one voltage-mode boost controller. Ideally suited as a pre-regulator stage where low quiescent current (Iq) is required, this device is also ideal for applications that require no damage when experiencing a power drop due to an unexpected event. The integrated boost controller allows the device to operate at inputs as low as 2V without the dropout of a buck regulator output stage. At light loads, the buck controller can be enabled to automatically operate in low-power mode, consuming only 30μA of quiescent current.

The buck converter has a separate soft-start function and a power up indicator. External metal-oxide-semiconductor field-effect transistor (MOSFET) protection is provided by current foldback in the buck controller and cycle-by-cycle current limiting in the boost controller. The switching frequency is programmable from 150kHz to 600kHz or can be synchronised to an external clock in the same range.

Product Features

Meets the requirements of automotive applications

AEC-Q100 test guide with the following results:

Device Temperature Level 1: -40°C to 125°C ambient operating temperature range

Device Human Body Model (HBM) Electrostatic Discharge (ESD) Classification Level H2

Device Charging Device Model (CDM) ESD Classification Level C2

Two synchronous buck controllers

One pre-boost controller

Input voltage range up to 40V when boost is enabled (transients up to 60V), operating voltage as low as 2V

Low power mode IQ: 30µA (one buck controller on), 35µA (two buck controllers on)

Low shutdown current Ish< 4µA

0.9V to 11V buck output range

Selectable boost outputs: 7V, 10V, or 11V

Programmable frequency and external synchronisation range of 150kHz to 600kHz

Independent enable inputs (ENA, ENB)

Selectable forced continuous mode or auto low power mode for light loads

Sense resistor or inductor DCR sensing

In-phase switching between buck channels

Peak gate drive current 1.5A

Thermally enhanced 38-pin heat sink thin small form factor package (HTSSOP)(DAP) PowerPAD package

Application Areas

Automotive start-stop, infotainment, and navigation instrument panel systems

Industrial and automotive multi-rail DC power distribution systems and electronic control units

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.