MP3423

9A, 600kHz High Efficiency, Synchronous Step-Up Converter with Output Disconnect in 2x2mm QFN Package

Datasheet

Description

The MP3423 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect.

The MP3423 starts up from an input voltage as low as 1.9V, while providing inrush current limiting and output short-circuit protection. The integrated P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. This P-channel disconnects the output from the input during shutdown.

The 600kHz switching frequency allows small external components, while the internal compensation and soft-start minimize external component count. The MP3423 provides a compact solution for a 5V output, 3.1A load requirement, using a supply voltage down to 2.8V.

The MP3423 is available in 14-pin QFN 2mmx2mm package.

Features & Benefits

Up to 98% Efficiency
1.9V to 5.5VInputRange
2.5V to 5.5VOutputRange
Internal Synchronous Rectifier
600kHz Fixed Switching Frequency
9A Typical Switch Current Limit
43uA Quiescent Current
High Efficiency overFullLoadRange
Internal Soft-start and Compensation
True Output Load Disconnect from Input
OCP, SCP, OVP and OTP Protection
Small 2x2mm QFN14 Package

Active Part Numbers:

MP3423GG-P MP3423GG-Z

Meaning of P & Z

Evaluation Tools

EV3423-G-00A Evaluation Kit 9A, 600kHz Synchronous Step-up Converter with Output Disconnect Evaluation Board

EV3423-G-00A Evaluation Board is designed to demonstrate the capability of MP3423. MP3423 is a high-efficiency, synchronous, current-mode, step-up converter with output disconnect.

The MP3423 can provide small size solution for 5V/3.1A load from a supply voltage down to 2.8V. The integrated P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The PMOS disconnects the output from the input when the part shuts down.

The 600kHz switching frequency allows for small external components, while the internal compensation and soft-start minimize the external component count. The MP3423 is available in 14-pin QFN 2mmx2mm package.

$25.00
+ tax