-
Description
The SPX3940U-3.3 is a 1A, accurate voltage regulator designed for low voltage applications that require a low dropout voltage and a fast transient response. It has a low dropout voltage of 280mV at 1A and provides a 1% output accuracy. The regulator is fully fault protected against over-current, reverse battery, and positive and negative voltage transients.
Specifications and features
- 1% Output Accuracy (SPX3940A)
- Guaranteed 1.5A Peak Current
- Low Quiescent Current
- Low Dropout Voltage of 280mV at 1A
- Extremely Tight Load and Line Regulation
- Extremely Fast Transient Response
- Reverse-battery Protection
- Internal Thermal Protection
- Internal Short Circuit Current Limit
- Replacement for LM3940
- Standard SOT-223, TO-220 and TO-263 packagesApplication Scenarios
- Powering VGA & Sound Card
- Automotive Electronics
- LCD Monitors
- Cordless Telephones
- Power PC TM Supplies
- SMPS Post-Regulator
- Laptop, Palmtop, and Note book Computer
- High Efficiency Linear Power Supplies
- Portable Instrumentation
- Constant Current RegulatorsComparison
Advantages- Accurate voltage regulation
- Low dropout voltage
- Fast transient response
- Fully fault protectedDisadvantages- None identified
-
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
- Datasheet: Download SPX3940U-3.3
- Chipdatas Part: CD94-SPX3940U-3.3
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/02 11:29 +0800
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.