36V, 3A, Low Quiescent Current Synchronous Step-Down ConvertorEvaluation Board
The EV4433-L-00A is an evaluation board for the MP/MPQ4433GL.
MP/MPQ4433GL is a frequency programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated internal high-side and low-side power MOSFETs. It provides up to 3A highly efficient output current with current mode control for fast loop response.
The MP/MPQ4433GL employs AAM (Advanced Asynchronous Modulation) mode which helps to achieve high efficiency at light load condition by scaling down the switching frequency to reduce the switching and gate driving losses.
The EV4433-L-00A is a fully assembled and tested evaluation board, it generates +3.3V output voltage at load current up to 3A from a 3.3V to 36V input range.
- Wide 3.3V-to-36V OperatingInputRange
- 3A 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
- 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 and AAM
- Low Dropout Mode
- Over-Current Protection with Valley-Current Detection and Hiccup
- Thermal Shutdown
- Available in Wettable Flank
- Available in AEC-Q100 Grade-1
- Fully Assembled and Tested
- PackageQFN-14 (3x4)
- IC Supported 1MP4433
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The MP4433 is a frequency-programmable (350kHz to 2.5MHz), synchronous, step-down, switching regulator with integrated, internal, high-side and low-side power MOSFETs. It provides up to 3A 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 and is ideal for battery-powered applications due to its extremely low quiescent current.
The MP4433 employs advanced asynchronous mode (AAM), which helps 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 (SS), external clock synchronization, enable (EN) control, and power good (PG) indication. High-duty cycle and low dropout mode are provided for automotive cold-crank condition.
Over-current protection (OCP) with valley-current detection is employed to prevent the inductor current from running away. Hiccup mode reduces the average current in short-circuit condition greatly. Thermal shutdown provides reliable and fault-tolerant operation.
The MP4433 is available in a QFN-16 (3mmx4mm) package.