MONOLITHIC POWER SYSTEMS (MPS) MPQ9843GL-P Datasheet & Stock

MPQ9843 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide 3.3V to 36V input supply range. The switching frequency can be programmed or synchronized to an external clock in the range of 350KHz to 2.5MHz. The synchronous operation and ultralow 14μA sleep mode quiescent current provide high efficiency over the output current load range, allowing the MPQ9843 to be used in a variety of step-down applications in automotive input environments and battery-powered applications. Peak-current-mode operation provides fast transient response and eases loop stabilization. The excellent low dropout performance allows the MPQ9843 to be used in high duty cycle applications. The MPQ9843 is available in a space-saving QFN-16 (3mmx4mm) package. Typically used in automotive and industrial power system.




2μA low shutdown supply current, 14μA no-load quiescent current

Internal 125mohm high-side and 55mohm low side MOSFET

Power good (PG) output, external soft start (SS)

80ns minimum on time

Selectable forced CCM and AAM

Hicc-up overcurrent protection (OCP)

Short circuit protection (SCP) and thermal shutdown

An open-drain power good (PG) signal indicates when the output is within 10% of its nominal voltage




Footnotes
MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.