The MP4323 is a configurable-frequency (350kHz to 2.5MHz), synchronous, step-down switch-mode converter with integrated internal high-side and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device can achieve up to 3A of highly efficient output current (IOUT) with peak current control mode.
The wide 3.3V to 36V input voltage (VIN) range and 42V load dump tolerance accommodate a variety of step-down applications in automotive input environments. A 1μA shutdown current (ISD) allows the device to be used in battery-powered applications. A high duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.
High power conversion efficiency across a wide load range is achieved by scaling down the switching frequency (fSW) under light-load conditions to reduce the switching and gate driver losses.
An open-drain power good (PG) signal indicates whether the output voltage (VOUT) is within 94.5% to 105.5% of its nominal voltage. Frequency foldback helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.
The MP4323 is available in a QFN-12 (2mmx3mm) package.
Show moreShow less
Log in to your account
Create New Account
Forgot Password
Log in to continue
myMPS+
A Plus account is required to perform this action.
Log in to your myMPS+ account or create one now.
Don’t have a myMPS+ account yet?
Get early access to new products, datasheets, and free samples.
Log in to your account
Create New Account