CS5171EDR8G

CS5171EDR8G is a boost regulator. This part operates over a wide input voltage range, from 2.7V to 30V. The flexibility of the design allows the chips to operate in most power supply configurations, including boost, flyback, forward, inverting, and SEPIC. The IC utilizes current mode architecture, which allows excellent load and line regulation, as well as a practical means for limiting current. Combining high-frequency operation with a highly integrated regulator circuit results in an extremely compact power supply solution. The circuit design includes provisions for features such as frequency synchronization, shutdown, and feedback controls for either positive or negative voltage regulation.

• Integrated power switch is 1.5A guaranteed
• 280KHz frequency, positive feedback voltage polarity
• High frequency allows for small components, minimum external components
• Easy external synchronization, built in overcurrent protection
• Frequency foldback reduces component stress during an overcurrent condition
• Thermal shutdown with hysteresis, shut down current is 50A maximum
• Operating current is 5.5mA typical at (2.7V<lt/> VCC <lt/> 30V)
• Switch leakage is 2µA typical at (VSW = 40V, VCC = 0V)
• 200ns minimum pulse width at (FB = 0V or NFB = 0V, ISW = 4.0A)
• Junction temperature range from -40°C to +150°C