NX9548 Datasheet Time Synchronous Buck Regulator

Manufacturer: Microsemi (now Microchip Technology)

Overview: NX9548 4.5 V to 24 V, 8 A Adaptive Constant On Time (COT) Synchronous Buck.

Datasheet Details

Part number	NX9548
Manufacturer	Microsemi (now Microchip Technology)
File Size	897.78 KB
Description	Time Synchronous Buck Regulator
Download	NX9548 Download (PDF)

The NX9548 is a synchronous buck switching regulator with 21 mΩ internal N-channel MOSFETs, primarily intended for portable (mobile) applications.

The NX9548 operates from 4.5 V to 24 V, and the output voltage range is from 0.75 V to 5 V, with output currents as high as 8 A.

It can be selected to operate in synchronous mode, or non-synchronous (diode emulation or PSM) mode at light loads, to improve efficiency.

overcurrent protection (OCP), feedback under-voltage lockout (FB UVLO), and overvoltage protection (OVP). It also includes an integrated bootstrap Schottky diode, and provides lowvoltage (5 V) gate-drive capability. In addition it provides a Power Good indicator and has adaptive dead time. Features.
Adaptive COT Control.
Adjustable, Constant Switching Frequency up to 1 MHz.
Extremely Low-RDSON N-MOSFETs.
Bus Voltage 4.5 V to 24 V.
Selectable Diode Emulation Mode (PSM Mo.

Part Number	Description
NX9511B	9A SYNCHRONOUS BUCK SWITCHING REGULATOR