Products > Integrated Circuits (ICs) > Power Management ICs > TPS54540BQDDARQ1
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TPS54540BQDDARQ1

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Automotive 42V, 5A, Step-Down Regulator With Integrated High Side MOSFET

  • Manufacturer :
  • TI
  • Package/Case :
  • HSOP-8
  • Product Categories :
  • Voltage Regulators - DC DC Switching Regulators
  • RoHs Status:
  • Lead free/RoHS Compliant
  • Marking Code:
  • 5454BQ
  • In-stock:
  • 0

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TPS54540BQDDARQ1 Product Details

The TPS54540BQDDARQ1 is a42-V, 5-A step-down regulator with anintegrated high side MOSFET. Current-mode control provides simple external compensation andflexible component selection. A low-ripple pulse-skip mode reduces no-load-supply current to 146μA. Shutdown supply current is reduced to 2 μA when the EN (enable) pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using the EN pin.Output voltage start-up ramp is internally controlled to provide a controlled start-up andeliminate overshoot.

A wide switching frequency range allows either efficiency or external component size tobe optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdownprotects internal and external components during an overload condition.

The TPS54540BQDDARQ1 isavailable in an 8-pin thermally enhanced HSOIC PowerPAD package.

TPS54540BQDDARQ1

Feature

  • High efficiency at light loads with pulse skipping Eco-mode
  • 92-mΩ high-side MOSFET
  • 146-μA operating quiescent current and
    2-μA shutdown current
  • 100-kHz to 2.5-MHz Fixed switching frequency
  • Synchronizes to external clock
  • Low dropout at light loads with integrated BOOT recharge FET
  • Adjustable UVLO and hysteresis
  • 0.8 V 1% Internal voltage reference
  • 8-Pin HSOIC with PowerPAD package
  • –40°C to 150°C TJ operating range
  • Create a custom design using the TPS54540B with the WEBENCH Power Designer

TPS54540BQDDARQ1 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Function
  • Step-Down
  • Output Configuration
  • Positive
  • Topology
  • Buck, Split Rail
  • Output Type
  • Adjustable
  • Number of Outputs
  • 1
  • Voltage Input (Min)
  • 4.5V
  • Voltage Input (Max)
  • 42V
  • Voltage Output (Min/Fixed)
  • 0.8V
  • Voltage Output (Max)
  • 41.1V
  • Current Output
  • 5A
  • Frequency Switching
  • 100kHz ~ 2.5MHz
  • Synchronous Rectifier
  • No
  • Operating Temperature
  • -40??C ~ 125??C (TA)
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 8-PowerSOIC (0.154, 3.90mm Width)
  • Supplier Device Package
  • 8-SO PowerPad

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Guarantees

1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that TPS54540BQDDARQ1 is the original manufacturer or agent of TI?
We have a professional business development department to strictly test and verify the qualifications of TI original manufacturers and agents. All TI suppliers must pass the qualification review before they can publish their TPS54540BQDDARQ1 devices; we pay more attention to the channels and quality of TPS54540BQDDARQ1 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of TPS54540BQDDARQ1 chips? Including TI original factory information, Voltage Regulators - DC DC Switching Regulators application, TPS54540BQDDARQ1 pictures?
You can use Jotrin's intelligent search engine, or filter by Semiconductors ; Power management ; DC/DC switching regulators category, or find it through TI brand manufacturer page.
Q: Are the TI's TPS54540BQDDARQ1 price and stock displayed on the platform accurate?
The TI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for TPS54540BQDDARQ1, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of TPS54540BQDDARQ1?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the TPS54540BQDDARQ1 we delivered, we will accept the replacement or return of the TPS54540BQDDARQ1 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of TPS54540BQDDARQ1.
(3)The TPS54540BQDDARQ1 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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