ON Semiconductor – FAN53200: 5A, 2.4MHz, Digitally Programmable TinyBuck® Regulator

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The FAN53200 is a step down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5V to 5.5V. The output voltage is programmed through an I2C interface capable of operating up to 3.4MHz. Using a proprietary architecture with synchronous rectification, the FAN53200 is capable of delivering 5A continuous at > 80% efficiency, while
maintaining > 80% efficiency at load currents as low as 10mA. The regulator operates at a nominal fixed frequency of 2.4MHz, which reduces the value of the external components.

FEATURES
• 60µA quiescent current in PFM mode
• 0.6V to 1.3875V digitally programmable output voltage (in 12.5mV steps)
• 2.5V to 5.5V input voltage range
• 2.4MHz fixed frequency operation
• Internal soft start
• Thermal shutdown and overload protection
• Best in class load transient
• 5A continuous output current capability
• Programmable slew rate for voltage transitions
• I2C compatible interface up to 3.4Mbps
• Input under-voltage lockout (UVLO)
• 20-bump Wafer-Level Chip Scale Package (WLCSP)

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