MPQ4432

MPQ4432

Industrial Grade, 36V, 2.2A, Low Quiescent Current, Synchronous, Step-Down Converter AEC-Q100 Qualified

Datasheet

Description

The MPQ4432 is a synchronous, step-down, switching regulator with programmable frequency (350kHz to 2.5MHz) and integrated, internal, high-side and low-side power MOSFETs. The MPQ4432 provides up to 2.2A of highly efficient output current with current mode control for fast loop response.
The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environments. The MPQ4432 is ideal for battery-powered applications due to its extremely low quiescent current.
The MPQ4432 employs advanced asynchronous mode (AAM) to achieve high efficiency in light-load condition by scaling down the switching frequency to reduce switching and gate driving losses.
Standard features include soft start, external clock synchronization, enable control, and power good indication. High-duty cycle and low dropout mode are provided for automotive cold-crank.
Over-current protection (OCP) with valley-current detection is employed to prevent the inductor current from running away. Hiccup mode reduces the average current greatly in short-circuit condition. Thermal shutdown provides reliable and fault-tolerant operation.
The MPQ4432 is available in a QFN-16 (3mmx4mm) package.

Features & Benefits

Wide 3.3V to 36V Operating Input Range
2.2A Continuous Output Current
1μA Low Shutdown Mode Current
10μA Sleep Mode Quiescent Current
Internal 90mΩ High-Side and 40mΩ Low-Side MOSFETs
350kHz to 2.5MHz Programmable Switching Frequency
Fixed Output Options: 3.3V, 3.8V, 5V
Synchronize to External Clock, Selectable In-Phase or 180° Out-of-Phase
Power Good Indicator
Programmable Soft-Start Time
80ns Minimum On Time
Selectable Forced CCM or AAM
Low Dropout Mode
Over-Current Protection (OCP) with Valley-Current Detection and Hiccup
Available in a QFN-16 (3mmx4mm) Package
Available in Wettable Flank
Available in AECQ-100 Grade-1

Active Part Numbers:

MPQ4432GL-AEC1-P MPQ4432GL-AEC1-Z MPQ4432GLE-AEC1-P MPQ4432GLE-AEC1-Z MPQ4432GL-P MPQ4432GL-Z MPQ4432GLE-5-AEC1-P MPQ4432GLE-5-AEC1-Z MPQ4432GLE-38-AEC1-P MPQ4432GLE-38-AEC1-Z

Meaning of P & Z