XC9702A75CDR-G

XC9702A75CDR-G is a XC9702 series, 60V bootstrap synchronous step-down DC/DC converter with built-in Nch-Nch driver FET. The switching frequency is 1.0MHz, and the operation mode can be selected between PWM control and PWM/PFM control with the MODE pin. When PWM control is operated, the frequency is constant regardless of the load, so noise countermeasures are easy. PWM/PFM control can achieve high efficiency from light loads to heavy loads. The same part number can be used for multiple power supply lines because the set value of the output voltage can be changed using an external resistor. It is possible to externally adjust the soft-start time longer than the internal soft-start using an external resistor and capacitor connected to EN/SS pin. Application includes 24V battery systems, industrial automation, industrial sensor, security systems, home appliances / power tools, 4~20mA current loop, high-voltage LDO replacement, general-purpose power-circuit / point-of-load.

• 0.75V FB voltage, 1.0MHz oscillation frequency
• Operating input voltage range from 4.5 to 60V (Ta = 25°C)
• Setting output voltage range from 2.5 to 12.0V (Ta = 25°C)
• Maximum output current is 300mA
• PWM control (MODE=”H”), PWM/PFM control (MODE=”L”) control methods
• Current limit (foldback), output over voltage protection
• Thermal shutdown, Lx short protection
• Power good, UVLO, soft-start (external adjustment)
• Ceramic output capacitor
• USP-10B package, operating ambient temperature range from -40 to 125°C/ Tjmax=150°C