MC33364D

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The MC33364D is an integrated step-down DC/DC module requiring only an external inductor, capacitor, and resistor for operation. This module has a wide range of applications in OLED displays, LCD displays, industrial and domestic applications, including battery-powered applications. The device has a high efficiency near 97% and integrates six-switches to support 1A (top switch) and 0.5A (bottom switch) output currents under the same or multiple voltages.

This DC/DC module operates based on a PWM control and is suitable for non-isolated SMPS (switch mode power supply) applications. The module architecture is highly integrated, comprising an input voltage regulator, a high and low side MOSFET switch, and output voltage regulator and an integrated dead-time generator and ramp compensation section.

The MC33364D has a wide input range of 2.7V to 20V which is suitable for most offline applications. The device is capable of delivering a 1A output current with a maximum output voltage of 16V, and is available in a tiny SIP (Single Inline Package) design. The high efficiency of this module is due to the integrated MOSFET switches, which eliminate the need for an external MOSFET and reduces the number of external components required.

The MC33364D has an integrated PWM control section which provides variable frequency operation and adjustable dead time. The output voltage is controlled via an external resistor and can be adjusted from 0V to 16V. The device also has an integrated soft-start circuit which minimizes inrush currents during startup. The high switching frequency of up to 4MHz allows for smaller output inductors, thus reducing the size of the module.

The MC33364D is designed to provide a high level of EMC performance with no external EMI filter required. The built-in undervoltage lockout (UVLO) circuit ensures that the module will not start up during power-on transients or when the input voltage is too low. The module also has an integrated thermal shutdown protection which prevents the device from overheating.

In summary, the MC33364D is a highly integrated, high efficiency DC/DC module suitable for industrial and domestic applications. It requires only a few external components and includes features such as soft-start, UVLO, and thermal shutdown protection. Furthermore, it has an efficient PWM control section and adjustable dead time, making it ideal for applications such as OLED displays, LCD displays, and battery-powered systems.

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