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DC/DC CONV, BUCK, 570KHZ,Input Voltage Min:3.5V, Input Voltage Max:28V, No. of Outputs:1Outputs,Output Current:3A, Output Voltage Min:800mV, Output Voltage Max:25V
| Fabbricante : | TI |
|---|---|
| Pacchetto : | SOIC-8 |
| Tipologia di produzione : | DC/DC Switching Controllers |
| Datasheet: | TPS54331DR Datasheet (PDF) |
| RoHs Status: | Lead free / RoHS Compliant |
| Codice di marcatura: | 54331 |
| Stock: | 0 |
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TPS54331DR Dettagli del prodotto
The TPS54331DR device is a 28-V, 3-A, step-down (buck) converter with an integrated high-side n-channel MOSFET. To improve performance during line and load transients, the device implements a constant-frequency,current mode control which reduces output capacitance and simplifies external frequency compensation design.
The TPS54331DR device has a preset switching frequency of 570 kHz.The TPS54331DR device requires a minimum input voltage of 3.5 V for normal operation.
The EN pin has an internal pullup current source that can adjust the input-voltage undervoltage lockout (UVLO) with two external resistors. In addition, the pullup current provides a default condition when the EN pin is floating for the device to operate.
The operating current is 110 μA (typical) when not switching and under no load. When the device is disabled, the supply current is 1 μA (typical).
The integrated 80-mΩ high-side MOSFET allows for high-efficiency power-supply designs with continuous output currents up to 3 A.
The TPS54331DR device reduces the external component count by integrating the boot recharge diode.
The bias voltage for the integrated high-side MOSFET is supplied by an external capacitor on the BOOT to PH pin. The boot capacitor voltage is monitored by an UVLO circuit and turns the high-side MOSFET off when the voltage falls below a preset threshold of 2.1 V (typical). The output voltage can be stepped down to as low as the reference voltage.
By adding an external capacitor, the slow-start time of the TPS54331DR device can be adjustable which enables flexible output filter selection.To improve the efficiency at light load conditions, the TPS54331DR device enters a special pulse skipping Ecomode.when the peak inductor current drops below 160 mA (typical).The frequency foldback reduces the switching frequency during startup and overcurrent conditions to help control the inductor current. The thermal shutdown provides additional protection under fault conditions.
Caratteristica
- 3.5 to 28-V Input Voltage Range
- Adjustable Output Voltage Down to 0.8 V
- Integrated 80-m? High-Side MOSFET Supports up to 3-A Continuous OutputCurrent
- High Efficiency at Light Loads With a Pulse Skipping Eco-mode?
- Fixed 570 kHz Switching Frequency
- Typical 1-μA Shutdown Quiescent Current
- Adjustable Slow-Start Limits Inrush Currents
- Programmable UVLO Threshold
- Overvoltage Transient Protection
- Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal ShutdownProtection
- Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8PowerPAD? Package
- Create aCustom Design with WEBENCH Tools
All trademarks are the property of their respective owners.
DescriptionThe TPS54331 device is a 28-V, 3-A non-synchronous buck converter that integrates a lowRDS(on) high-side MOSFET. To increase efficiency at light loads, a pulseskipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply-currentallows the device to be used in battery-powered applications. Current mode control with internalslope compensation simplifies the external compensation calculations and reduces component countwhile allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis ofthe input undervoltage lockout. An overvoltage transient protection circuit limits voltageovershoots during startup and transient conditions. A cycle-by-cycle current-limit scheme,frequency foldback and thermal shutdown protect the device and the load in the event of an overloadcondition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD packagethat have been internally optimized to improve thermal performance.
(Immagine: Diagram)
Parametri tecnici
- Input Voltage MAX
- 28 V
- Switching Frequency
- 570 kHz
- Output Voltage
- 0.8 V to 25 V
- Output Current
- 3 A
- Number of Outputs
- 1
- Maximum Operating Temperature
- + 150 C
- Mounting Style
- SMD/SMT
- Input Voltage MIN
- 3.5 V
- Minimum Operating Temperature
- - 40 C
- Package / Case
- SOIC-8
- Packaging
- Reel
- Series
- TPS54331
- Factory Pack Quantity
- 2500
- Type
- Step Down
TPS54331DR Datasheet
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TPS54331 Family Datasheet
TPS54331DR Parti Equivalenti
Per il componente TPS54331DR, puoi considerare queste parti di ricambio e alternative.
| Modelli | Fabbricante | Pacchetto | Descrizione |
|---|---|---|---|
| TPS54332DR | |||
| TPS543xx |
TPS54331DR Related speciale
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Spedizione
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- Lead Time
- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
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- UPS
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- TNT
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- 2-5 days
- EMS
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- 5-14 days
- REGISTERED AIR MAIL
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- 7-30 days
Processing Time：Shipping fee depend on different zone and country.
Pagamento
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- Wire Transfer
- charge US$30.00 banking fee.
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- charge 4.0% service fee.
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- charge 3.5% service fee.
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- charge US$0.00 banking fee.
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Imballaggio
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Step2: Vacuum Packaging
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Step3: Anti-Static Bag
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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.
Garanzie
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.
FAQ:
- Q: How does Jotrin guarantee that TPS54331DR 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 TPS54331DR devices; we pay more attention to the channels and quality of TPS54331DR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of TPS54331DR chips? Including TI original factory information, DC/DC Switching Controllers application, TPS54331DR 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 TPS54331DR 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 TPS54331DR, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online. - Q: What forms of payment can I use in Jotrin?
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- Q: How is the shipping arranged and track my package?
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
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 TPS54331DR?
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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 TPS54331DR we delivered, we will accept the replacement or return of the TPS54331DR 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 TPS54331DR.
(3)The TPS54331DR 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. - Q: How to contact us and get support, such as TPS54331DR datasheet pdf, TPS54331 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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