NCP1501 Datasheet - ON Semiconductor

NCP1501 Dual Mode PWM/Linear Buck Converter

Pin # Symbol Pin Description 1 SHD Enable Pin for the NCP1501. This pin is active high. Internal pull down resistor forces the part off if the pin is not connected on the board. 2 SYN External Synchronization Signal Pin. The device will operate in PWM mode if a clock signal is present. Th.

NCP1501 Dual Mode PWM/Linear Buck Converter The NCP1501 is a dual mode regulator that operates either as a PWM Buck Converter or as a Low Drop Out Linear Regulator. If a synchronization signal is present, the NCP1501 operates as a current mode PWM converter with synchronous rectification. The synchronization signal allows the user to control the location of the spurious frequency noise generated by a PWM converter. Linear mode is active when a synchronization signal is not present. The NCP1501 c.

NCP1501 Features

* Synchronous Rectification for Higher Efficiency in PWM Mode

* Linear Mode Operation for Low Noise Output at Low Loads

* Integrated MOSFETs and Feedback Circuits

* Cycle

* by

* Cycle Peak Current Limit of 800 mA (typ)

* Automatic Switching Between PWM and Linear Mode

NCP1501_ONSemiconductor.pdf