-40%
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National
LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National

LM78S40CN Universal Switching Regulator Subsystem, PDIP-16, National

$ 1.02

Availability: 120 in stock
  • MPN: LM78S40CN
  • California Prop 65 Warning: This product can expose you to certain chemicals, known to the state of California to cause cancer or birth defects or other reproductive harm.
  • Item must be returned within: 30 Days
  • Return shipping will be paid by: Seller
  • Refund will be given as: Money Back
  • Type: Voltage Regulator
  • All returns accepted: Returns Accepted
  • Condition: New
  • Brand: National Semiconductor

    Description

    Single Item, Package of 1.
    New old stock (NOS), unused, genuine part: National LM78S40CN Universal Switching Regulator Subsystem, PDIP-16
    Shipped in cut to size Anti-Static IC tube. Combined shipping available for quantities > 1.
    Manufacturer: National Semiconductor
    Manufacturer Part Number: LM78S40CN
    Product Category: Switching Voltage Regulators
    Output Voltage: 1.2 V to 40 V
    Output Current, max: 1.5 A
    Number of Outputs: 1 Output
    Supply Voltage - Min: 2.5 V
    Supply Voltage - Max: 40 V
    Package / Case: PDIP-16, Plastic
    RoHS: NO
    Packaging: Anti-Static IC tube (cut-to-size)
    Note: Date code may differ from picture. Part Number and Manufacturer are identical to what is shown.
    Features
    ■ Step-up, step-down or inverting switching regulators
    ■ Output adjustable from 1.25V to 40V
    ■ Peak currents to 1.5A without external transistors
    ■ Operation from 2.5V to 40V input
    ■ Low standby current drain
    ■ 80 dB line and load regulation
    ■ High gain, high current, independent op amp
    ■ Pulse width modulation with no double pulsing
    Description
    The LM78S40 is a monolithic regulator subsystem consisting of all the active building blocks necessary for switching regulator systems. The device consists of a temperature compensated voltage reference, a duty-cycle controllable oscillator with an active current limit circuit, an error amplifier, high current, high voltage output switch, a power diode and an uncommitted operational amplifier. The device can drive external NPN or PNP transistors when currents in excess of 1.5A or voltages in excess of 40V are required. The device can be used for step-down, step-up or inverting switching regulators as well as for series pass regulators. It features wide supply voltage range, low standby power dissipation, high efficiency and low drift. It is useful for any stand-alone, low part count switching system and works extremely well in battery operated systems.