DESCRIPTION
Using a proprietary architecture with synchronous rectification, the FAN5362 is capable of delivering a peak efficiency of 96%, while maintaining efficiency over 90% with load currents as low as 1 mA. The PWM modulator can be synchronized to an external frequency source. At moderate and light loads, pulse frequency modulation is used to operate the device in power−save mode with a typical quiescent current of 45 mA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed−frequency control, operating at 3 MHz. In shutdown mode, the supply current drops below 1 mA, reducing power consumption. For applications that require minimum ripple or fixed frequency, PFM mode can be disabled using the MODE pin. The FAN5362 is available in 6−bump, 0.4 mm pitch, Wafer−Level Chip−Scale Package (WLCSP) and 6−Lead 2 x 2 mm Ultrathin Molded Leadless Package (UMLP). FEATURES
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onsemi
