This post explains for the semiconductor LM338.
The Part Number is LM338.
The function of this semiconductor is THREE-TERMINAL 5A ADJUSTABLE VOLTAGE REGULATORS.
Manufacturers : STMicroelectronics
Preview images :
LM138 – LM238 – LM338 Three-terminal 5 A adjustable voltage regulators Features ■ Guaranteed 7 A peak output current ■ Guaranteed 5 A output current )■ Adjustable output down to 1.2 V t(s■ Line regulation typically 0.005 %/V uc■ Load regulation typically 0.1 % d■ Guaranteed thermal regulation ro■ Current limit constant with temperature P■ Standard 3-lead transistor package oleteDescription bsThe LM138, LM238, LM338 are adjustable 3Oterminal positive voltage regulators capable of -supplying in excess of 5 A over a 1.2 V to 32 V )output range. They are exceptionally easy to use t(sand require only 2 resistors to set the output voltage. Careful circuit design has resulted in ucoutstanding load and line regulation comparable dto many commercial power supplies. The LM138 rofamily is supplied in a standard 3-lead transistor Ppackage. teA unique feature of the LM138 family is time-delependent current limiting. The current limit circuitry oallows peak currents of up to 12 A […]