EA8276P8R

The EA8276 is a synchronous buck converter using Fixed On- Time Control Technology (COT). The main control loop of EA8276 adopts COT mode control, which can use low ESR ceramic capacitors to achieve fast transient response without external compensation components. Under the condition of 1.05V output, the 0 to 6A load jump Dropout voltage is only 50mV. The fixed on- time control technology can work in PWM mode under heavy load conditions and PFM mode under light load conditions, and can achieve seamless transition between the two modes, so that EA8276 can maintain high efficiency under light load conditions. The EA8276 operates from an input voltage range of 4.5V to 18V. The output voltage is programmable between 0.765 V and 6V. It has functions such as over- temperature protection, under- voltage protection, cycle- by- cycle current limiting and short- circuit Hiccup protection. The EA8276 is available in an 8- pin ESOP8 package and is designed to operate over a temperature range of - 40°C to 85°C.

Applications

• Netcom Products
• LCD TVs and Flat TVs
• Notebooks

Key features

• COT mode Operation
• Fast Transient Response
• MLCC Capacitor for Output is Available
• Low Output Ripple
• 4.5V to 18V Input Voltage Range
• Output Range from 0.765V to 6V
• 6A Continuous Load Current
• Fixed 750KHz Switching Frequency
• Internal Compensation
• Adjustable Soft- Start Function
• Cycle- by- Cycle Current Limit
• Auto Recovery Hiccup Mode Short Circuit Protection
• Auto Recovery OTP Protection
• Available in SOP- 8 (with EP) Package