OC6800B is a dedicated DC-DC designed for step-up, buck-boost switching power supplies, with a built-in 100V/5A power tube on the chip.
OC6800B typical application supports a 5-36V input voltage range. The output voltage is less than 100V.
The chip adopts a fixed frequency PWM control mode, and automatically reduces the frequency under light load conditions to improve the conversion efficiency.
The chip has a built-in high-precision error amplifier, oscillator, and frequency compensation circuitry, simplifying the peripheral design. Overcurrent protection and EN pin shutdown are built-in.
The chip operating frequency can be adjusted by an external resistor, making it easy to set the system operating frequency according to different applications.
OC6800B Soft-start and over-temperature protection circuitry are integrated to reduce external components and improve system reliability.
OC6800B is available in an ESOP8 package. The heatsink has a built-in SW pin.