LM78S40CN Datasheet PDF – Switching Regulator Subsystem

Part Number: LM78S40CN

Function: Universal Switching Regulator Subsystem

Package: DIP 16 Pin Type

Manufacturer: National ->Texas Instruments


LM78S40CN datasheet



The LM78S40CN 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.

Acquired by Texas Instruments on September 23rd, 2011.


1. Step-up, step-down or inverting switching regulators

2. Output adjustable from 1.25V to 40V

3. Peak currents to 1.5A without external transistors

4. Operation from 2.5V to 40V input

5. Low standby current drain

6. 80 dB line and load regulation

7. High gain, high current, independent op amp


LM78S40CN Datasheet PDF Download

LM78S40CN pdf

Other data sheets are available within the file:

LM78S40, LM78S40C, LM78S40J/883, LM78S40N