NCP1512 Datasheet (ON Semiconductor)

NCP1512, PWM Buck Converter

Pin No.

Symbol Type A1 GNDP Power Ground A2 LX Analog Output A3 VCC Analog Input B1 SYNC Analog Input B2 GNDA Analog Ground B3 FB Analog Input C1 SHD Analog Input C2 CB1 Analog Input C3 CB0 Analog Input Description Ground Connection for the NFET Power Stage.

Connection from Pow

NCP1512 Advance Information PWM Buck Converter with a Very Low Iq During Low Load Conditions The NCP1512 is a tri-mode regulator that operates either as a Synchronized PWM Buck Converter, PWM Buck Converter with internal oscillator or as a Pulsed Switching Regulator.

If a synchronization signal is present, the NCP1512 operates as a current mode PWM converter with synchronous rectification.

The optional external frequency input signal allows the user to control the location of the spurious frequ

NCP1512 Features

* Synchronous Rectification for Higher Efficiency in PWM Mode

* Pulsed Switching Mode Operation for Low Current Consumption at Low Loads

* Integrated MOSFETs and Feedback Circuits

* Cycle -by-Cycle Current Limit

* Automatic Switching Between PWM, with External