유통업체에서 제공한 onsemi FAN53200UC35X에 대한 설명입니다.
FAN53200 Series 5.5 V 5 A Buck Surface Mount Switching Regulator - WLCSP-20
Switching Regulator, Voltage-mode, 5A, 2750kHz Switching Freq-Max, PBGA20
5A, 2.4 MHz, Digitally Programmable TinyBuck® Regulator
FAIRCHILD SEMICONDUCTOR FAN53200UC35X DC/DC CONV, BUCK, 5A, 2.4MHZ, WLCSP-20New
Tape & Reel (TR) Tin/Silver/Copper (Sn/Ag/Cu) ACTIVE (Last Updated: 5days ago) Active DC to DC switching regulator 3.5V 0.625mm 5A 2.4MHz
DC/DC CONV, BUCK, 5A, 2.4MHZ, WLCSP-20; Topology:Buck (Step Down); Input Voltage Min:2.5V; Input Voltage Max:5.5V; DC / DC Converter IC Case:WLCSP; No. of Pins:20Pins; Output Current:5A; Output Voltage Nom.:3.5V; Switching RoHS Compliant: Yes
The FAN53200 is a step-down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5 V to 5.5 V. The output voltage is programmed through an I2C interface capable of operating up to 3.4 MHz.Using a proprietary architecture with synchronous rectification, the FAN53200 is capable of delivering 5 A continuous at over 80% efficiency, while maintaining over 80% efficiency at load currents as low as 10 mA. The regulator operates at a nominal fixed frequency of 2.4 MHz, which reduces the value of the external components. Additional output capacitance can be added to improve regulation during load transients without affecting stability. Inductance up to 1.2 µH may be used with additional output capacitance.At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate in Power-Save Mode with a typical quiescent current of 60 µA. At higher loads, the system automatically switches to fixed-frequency control, operating at 2.4 MHz. At Shutdown Mode, the supply current drops to 0.1 µA, reducing power consumption. PFM Mode can be disabled if constant frequency is desired. The FAN53200 is available in a 20-bump, 1.6 x 2.0 mm, WLCSP.