L4978D - Brand New STMicroelectronics DC Switching Regulators
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DESCRIPTION
The L4978 is a step down monolithic power switching regulator delivering 2A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rdson of 0.25Ω) to obtain very high efficency and high switching speed.
■ UP TO 2A STEP DOWN CONVERTER
■ OPERATING INPUT VOLTAGE FROM 8V TO
55V
■ PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
■ OUTPUT VOLTAGE ADJUSTABLE FROM
3.3V TO 50V
■ SWITCHING FREQUENCY ADJUSTABLE UP
TO 500KHz
■ VOLTAGE FEEDFORWARD
■ ZERO LOAD CURRENT OPERATION
■ INTERNAL CURRENT LIMITING (PULSE-BYPULSE AND HICCUP MODE)
■ INHIBIT FOR ZERO CURRENT CONSUMPTION
■ PROTECTION AGAINST FEEDBACK DISCONNECTION
■ THERMAL SHUTDOWN
■ SOFT START FUNCTION -
Similar parts: 7322 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
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- - DHL eCommerce: 12-22 business days
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- - EMS: 10-15 business days
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Popular parts of the same kind
- Datasheet: Download L4978D
- Chipdatas Part: CD91-L4978D
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/13 01:45 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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