Products > Integrated Circuits (ICs) > Power Management ICs > TPS543B20RVFT

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Conv DC-DC 4V to 25V Synchronous Step Down Single-Out 0.6V to 5.5V 25A 40-Pin LQFN-CLIP EP T/R

Manufacturer : TI
Package/Case : 40-LFQFN
Product Categories : Step-Down (Buck) , Buck Converter (Integrated Switch)
Datasheet: TPS543B20RVFT Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
In-stock: 0


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TPS543B20RVFT Product Details

4-19Vin 25A Stackable Synchronous Step-down SWIFT™ Converter w/ Adaptive Internal Compensation 40-LQFN-CLIP -40 to 125



  • Internally-Compensated Advanced Current Mode Control 25-A POL
  • Input Voltage Range: 4 V to 19 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated 4.1/1.9-mΩ StackedNexFET? Power Stage With Lossless Low-Side CurrentSensing
  • Fixed Frequency - Synchronization to an External Clock and/or Sync Out
  • Pin Strapping Programmable Switching Frequency
    • 300 kHz to 2 MHz for Standalone
    • 300 kHz to 1 MHz forStackable
  • Stack 2× for up to 50 A With Current Share, Voltage Share, andCLK Sync
  • Pin Strapping Programmable Reference from 0.6 V to 1.1 V With 0.5%Accuracy
  • Differential Remote Sensing
  • Safe Start-Up intoPrebiased Output
  • High-Accuracy Hiccup Current Limit
  • Asynchronous Pulse Injection (API) and Body Braking
  • 40-pin, 5-mm × 7-mm LQFNPackage with 0.5-mm Pitch and Single Thermal Pad
  • Create a Custom Design Using the TPS543B20With theWEBENCH? Power Designer

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The TPS543B20 employs an internally compensated emulatedpeak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitivePOL. The internal integrator and directly amplifying ramp tracking loop eliminate the need forexternal compensation over a wide range of frequencies thereby making the system design flexible,dense, and simple. Optional API and body braking help improve transient performance bysignificantly reducing undershoot and overshoot, respectively. Integrated NexFET? MOSFETs with low-loss switching facilitate high efficiency anddeliver up to 25 A in a 5-mm × 7-mmPowerStack? package with a layout friendly thermal pad. TwoTPS543B20 devices can be stacked together to provide up to50-A point-of-load.

TPS543B20RVFT Block Diagram
(Picture: Diagram)

Technical Parameters

  • Vin(Min)(V)
  • 4
  • Control Mode
  • Current Mode
  • Rating
  • Catalog
  • Approx. Price (US$)
  • 3.65 | 1ku
  • Switching Frequency(Min)(kHz)
  • 300
  • Vout(Max)(V)
  • 5.5
  • Duty Cycle(Max)(%)
  • 70
  • Operating Temperature Range(C)
  • -40 to 125
  • Features
  • Enable,Frequency Synchronization,Over Current Protection,Phase Interleaving,Power Good,Pre-Bias Start-Up,Remote Sense,Synchronous Rectification,UVLO Adjustable
  • Type
  • Converter
  • Regulated Outputs(#)
  • 1
  • Switching Frequency(Max)(kHz)
  • 2000
  • Vin(Max)(V)
  • 19
  • Iout(Max)(A)
  • 25
  • Package Group
  • Vout(Min)(V)
  • 0.6
  • Iq(Typ)(mA)
  • 3

TPS543B20RVFT Datasheet

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Estimated Delivery Time: Apr 18 - Apr 23 days (choose Expedited at checkout).

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  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

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.


Q: How does Jotrin guarantee that TPS543B20RVFT 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 TPS543B20RVFT devices; we pay more attention to the channels and quality of TPS543B20RVFT products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of TPS543B20RVFT chips? Including TI original factory information, Step-Down (Buck) , Buck Converter (Integrated Switch) application, TPS543B20RVFT 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 TPS543B20RVFT 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 TPS543B20RVFT, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of TPS543B20RVFT?
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 TPS543B20RVFT we delivered, we will accept the replacement or return of the TPS543B20RVFT 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 TPS543B20RVFT.
(3)The TPS543B20RVFT 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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