MPQ4320C
DESCRIPTION
The MPQ4320C is a configurable-frequency (350k Hz to 2.5MHz) synchronous, step-down switching converter with integrated internal highside and low-side power MOSFETs (HS-FET and LS-FET, respectively). The device provides up to 0.5A of highly efficient output current (IOUT) with peak current mode control.
The wide 3.3V to 36V input voltage (VIN) range and 42V load dump tolerance acmodates a variety of step-down applications in automotive input environments. A 1μA shutdown current (ISD) allows the device to be used in batterypowered applications.
An open-drain power good (PG) signal indicates whether the output is within 94.5% to 105.5% of its nominal voltage.
Frequency foldback helps prevent inductor current (IL) runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation. High duty cycle and low-dropout (LDO) mode are provided for automotive cold-crank conditions.
The MPQ4320C is available in a QFN-12 (2mmx3mm) package with wettable flanks or a...
