The MP4432GL-Z 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 MP4432GL-Z 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 MP4432GL-Z is ideal for battery-powered applications due to its extremely low quiescent current.The MP4432GL-Z 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 MP4432GL-Z is available in a QFN-16 (3mmx4mm) package.Applications• Automotive Systems• Industrial Power Systems 9icnet Electronics is an authorized Monolithic Power Systems distributor.
Feature
- 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
