MP9943

MP9943

High Efficiency 3A Peak, 36V, Synchronous Step Down Converter with Power Good

Datasheet

Description

The MP9943 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP9943 has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shutdown. The MP9943 requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.

Features & Benefits

Wide 4V to 36V Continuous Operating Input Range
85mO/55mO Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
410kHz Switching Frequency
Synchronizes from 200kHz to 2.2MHz External Clock
High Duty Cycle for Automotive Cold-crank
Internal Power-Save Mode
Internal Soft-Start
Power Good Indicator
Over Current Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an QFN-8 (3mmx3mm) package

Active Part Numbers:

MP9943AGQ-P MP9943AGQ-Z MP9943GQ-P MP9943GQ-Z

Meaning of P & Z

Evaluation Tools

EV9943-Q-00A Evaluation Kit High-Efficiency, 3A Peak, 36V, 410kHz Step-Down Converter Evaluation Board

The EV9943-Q-00A is an evaluation board that demonstrates the capabilities of the MP9943, a high-frequency, synchronous, rectified, step-down converter with built-in high-side and low-side power MOSFETs. The MP9943 offers a very compact solution to achieve 3A of peak output current, with excellent load and line regulation over a wide input supply range. The MP9943 has synchronous mode operation for higher efficiency over the output current load range.

Current-mode operation provides fast transient response and eases loop stabilization. Full protection features includes over-current protection and thermal shutdown.

The MP9943 requires a minimal number of readily available, standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.

$25.00
+ tax