APW7143

APW7142 : The APW7142 is a 3A synchronous-rectified Buck converter with integrated 70m Ω power MOSFETs. The APW7142, designed with a current-mode control scheme, can convert wide input voltage of 4.3V to 14V to the output voltage adjustable from 0.8V to VIN to provide excellent output voltage regulation. For high efficiency over all load current range, the APW7142 is equipped with an automatic Skip/PWM mode operation. At light load, the IC operates in the Skip mode, which keeps a constant minimum inductor peak current, to reduce switching losses. At heavy load, the IC works in PWM mode, which inductor peak current is programmed by the COMP voltage, to provide high efficiency and excellent output volta.

APW7145 : • Wide Input Voltage from 4.3V to 14V • Output Current up to 3A • Adjustable Output Voltage from 0.8V to VIN - ±2% System Accuracy • 55mΩ Integrated Power MOSFETs • High Efficiency up to 95% - Automatic Skip/PWM Mode Operation • Current-Mode Operation - Easy Feedback Compensation - Stable with Low ESR Output Capacitors - Fast Load/Line Transient Response • Power-On-Reset Monitoring • Fixed 500kHz Switching Frequency in PWM Mode • Built-In Digital Soft-Start and Soft-Stop • Current-Limit Protection with Frequency Foldback • 123% Over-Voltage Protection • Hiccup-Mode 50% Under-Voltage Protection • Over-Temperature Protection • 3µA Quiescent Current in Shutdown Mode • SOP-8P and Compact 4mmx4.