MP4430

36V, 3.5A, Low Quiescent Current, Synchronous, Step-Down Converter AEC-Q100 Qualified

Datasheet

概要

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.

機能と利点

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

アクティブ部品番号

MP4430GL-P MP4430GL-P MP4430GL-Z

Evaluation Tools

EV4430-L-00A Evaluation Kit 36V, 3.5A, Low I_Q, Synchronous Step-Down Convertor Evaluation Board

The EV4430-L-00A is an evaluation board for the MP/MPQ4430GL. The MP/MPQ4430GL 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 MP/MPQ4430GL employs AAM (advanced asynchronous modulation) mode which helps to achieve high efficiency under light-load conditions by scaling down the switching frequency to reduce the switching and gate driver losses.

The EV4430-L-00A is a fully assembled and tested evaluation board, and generates 3.3V output voltage at load currents up to 3.5A, from a 3.3V to 36V input range. It is AEC-Q100 qualified, and is available in a QFN-16 (3mmx4mm) package.

￥5,432.50
+ tax