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TPS43350QDAPRQ1 This device is a current-mode synchronous buck controller for automotive applications in harsh environments. This device is ideal for multi-rail systems that require low quiescent current because they operate in a low power mode (only 30µA current consumption) at light loads. The device provides protection features such as thermal protection, soft start, and overcurrent protection. In the event of a short circuit at the regulator output, the current foldback feature is activated, which limits the current flow through the metal-oxide-semiconductor field-effect transistors (MOSFETs) used to control power dissipation. Two independent soft-start inputs enable independent output voltage ramping during start-up.

The switching frequency is programmable from 150kHz to 600kHz, i.e. the frequency of the external clock to which the device can be synchronised. 

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 HBM Charging Device Model (CDM) Classification Level C2

Two synchronous buck controllers

Input voltage range up to 40V (transients up to 60V)

Low power mode IQ: 30µA (one buck regulator on), 35µA (two buck regulators on)

Low shutdown current Ish<4µA

Buck output range 0.9V to 11V

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

Independent Enable Inputs (ENA, ENB)

Frequency spread spectrum (TPS43351-Q1)

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 (DAP) PowerPAD package

Application Areas

In-vehicle infotainment, navigation, and instrument panel systems

Industrial or 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.