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L4978

L4978

Active

L4978D

2A Step down switching regulator

Input Voltage Min Volt8.0
Input Voltage Max Volt55.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius150.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTube
RoHs compliantEcopack3
GradeIndustrial
Package NameSO-16W

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...
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Key features
  • PROTECTION AGAINST FEEDBACK DISCONNECTION
  • INHIBIT FOR ZERO CURRENT CONSUMPTION
  • SOFT START FUNCTION
  • THERMAL SHUTDOWN
  • ZERO LOAD CURRENT OPERATION
  • VOLTAGE FEEDFORWARD
  • UP TO 2A STEP DOWN CONVERTER
  • PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
  • OPERATING INPUT VOLTAGE FROM 8V TO 55V
  • SWITCHING FREQUENCY ADJUSTABLE UP TO 300KHz
  • INTERNAL CURRENT LIMITING (PULSE-BYPULSE AND HICCUP MODE)
  • OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V
In stock
Quantity $ per unit Savings
1-9$3.800%
10-24$3.518%
25-30$2.8126%
Contact sales
$3.80
$3.80
Input Voltage Min Volt8.0
Input Voltage Max Volt55.0
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius150.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTube
RoHs compliantEcopack3
GradeIndustrial
Package NameSO-16W

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...
Read More

Key features
  • PROTECTION AGAINST FEEDBACK DISCONNECTION
  • INHIBIT FOR ZERO CURRENT CONSUMPTION
  • SOFT START FUNCTION
  • THERMAL SHUTDOWN
  • ZERO LOAD CURRENT OPERATION
  • VOLTAGE FEEDFORWARD
  • UP TO 2A STEP DOWN CONVERTER
  • PRECISE 3.3V (±1%) INTERNAL REFERENCE VOLTAGE
  • OPERATING INPUT VOLTAGE FROM 8V TO 55V
  • SWITCHING FREQUENCY ADJUSTABLE UP TO 300KHz
  • INTERNAL CURRENT LIMITING (PULSE-BYPULSE AND HICCUP MODE)
  • OUTPUT VOLTAGE ADJUSTABLE FROM 3.3V TO 50V