MP4430

MP4430

36V, 3.5A, Low Quiescent Current, Synchronous, Step-Down Converter

Datasheet

Description

The MP4430 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 3.5A 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 MP4430 employs advanced asynchronous mode (AAM), which helps 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 a power good (PG) indicator. 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 MP4430 is available in a QFN-16 (3mmx4mm) package.

Features & Benefits

Wide 3.3V to 36V Operating Input Range
3.5A 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 (PG) Indicator
Programmable Soft-Start (SS) 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

Active Part Numbers:

MP4430GL-Z MP4430GL-P

Meaning of P & Z

Related Products

EVQ4430-L-00A 36V, 3.5A, Low-I_Q, Synchronous Step-Down Converter Evaluation Board

The EVQ4430-L-00A evaluation board is designed to demonstrate the capabilities of the MP4430 and the MPQ4430. The MPQ4430 is a configurable-frequency (350kHz to 2.5MHz), synchronous, step-down switching regulator with integrated, internal high-side MOSFET (HS-FET) and low-side MOSFET (LS-FET). It provides up to 3.5A of highly efficient output current (I_OUT) with current mode control for fast loop response.

The MPQ4430 employs advanced asynchronous modulation (AAM) mode to achieve high efficiency under light-load conditions by scaling down the switching frequency (f_SW). This reduces the switching and gate driving losses.

The EVQ4430-L-00A is a fully assembled and tested evaluation board. It generates an output voltage (V_OUT) of 5V at load currents up to 3.5A across a wide 5V to 36V input voltage (V_IN) range. The MPQ4430 is available in a QFN-16 (3mmx4mm) package.

$50.00
+ tax