Description
Switching regulator LM323K TO-3 5.1V 4.25A
We have designed and built a switch mode replacement for the obsolete fixed 5V regulators LM109, LM309, LM123, LM323 and 7805.
Our replacement is rated at 4.25A continuous with a heat sink. By having an output voltage of 5.1 volts instead of 5 volts, limits the voltage drop seen in many situations such as on pinball driver boards or in long cable runs. Almost all 5 volt rated devices will have absolutely no issues with input voltages up to and including 5.2 volts. As a switching regulator. these devices run so much cooler than the original linear regulators. It is still recommended that these switching regulators are mounted to a heatsink when the device is going to delivering a constant current of 2 Amps or more.
Specifications
Voltage Input: 7 – 34V
Voltage Output: 5.1V (5.05 – 5.15) fixed
Output Current: 4.25A
Builtin Protection: Hiccup-Mode overload, Over Temperature, Short Circuit, Over Current, Under Voltage Lockout
Large mounting holes and ground tabs for good thermal and electrical conductivity when mounted.
Very low output ripple measured at less than 40mV at full load.
