PS51XX

PS51XX/PT78ST1XX series of step-down DC-DC power conversion is the use of Buck buck switching power supply technology, and made ​​a small chip components into. With input compact, wide-voltage, high efficiency, light weight, high output power, the ripple is small, easy to use and so on. 7805 series of linear power with compatible chip and pin TO-220 package features, can replace the chip PS51XX with 7805 series linear power supply (pin to pin compatible). When necessary, direct replacement for the corresponding linear power supply chips to use. The integrated short-circuit, overload protection, and in the factory when the full load through the high temperature aging and testing. Application: portable battery-powered, GSM and GPRS Wireless Modem, small electronic instrumentation, industrial control equipment, battery backup power supply.