The MPQ2124 is a frequency-programmable (300kHz to 2.2MHz), synchronous step-down converter. It can achieve up to 3A of continuous output current using peak current control, with excellent transient response and efficiency performance. The MPQ2124 operates from a 2.7V to 6.0V input range, and generates an output voltage as low as 0.606V. It is ideal for a wide range of applications, including automotive infotainment, clusters, and telematics, as well as portable instruments.
The MPQ2124 integrates a 35mΩ high-side switch and a 25mΩ synchronous rectifier for high efficiency without an external Schottky diode. The MPQ2124 can be configured for either advanced asynchronous mode (AAM) or forced continuous conduction mode (FCCM) operation at light load. AAM provides high efficiency by reducing switching losses at light load, while FCCM has controllable frequency and a lower output ripple.
The MPQ2124 offers standard features, including soft start, an external sync clock, enable control, and a power good indicator. In addition, the MPQ2124 provides over-current protection with valley current detection, which is used to avoid current runaway. It also has short-circuit protection, reliable over-voltage protection, and auto-recovery thermal protection.
With internal compensation, the MPQ2124 requires a minimal number of readily available, standard external components, and is available in a QFN-11 (2mmx3mm) package.
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