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RT8290 詳細介紹

The RT8290 is a high efficiency synchronous step-down DC/DC converter that can deliver up to 3A output current from 4.5V to 23V input supply. The RT8290's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors. RT8290 Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RT8290 also provides output under voltage protection and thermal shutdown protection. The RT8290 low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT8290 is available in an SOP-8 (Exposed Pad) package.

RT8290 4.5V to 23V Input Voltage Range
RT8290 1.5% High Accuracy Feedback Voltage
RT8290 3A Output Current
RT8290 Integrated N-MOSFET Switches
RT8290 Current Mode Control
RT8290  Fixed Frequency Operation : 340kHz
RT8290  Output Adjustable from 0.925V to 20V
RT8290 Up to 95% Efficiency
• Programmable Soft-Start
• Stable with Low-ESR Ceramic Output Capacitors
• Cycle-by-Cycle Over Current Protection
• Input Under Voltage Lockout
• Output Under Voltage Protection
• Thermal Shutdown Protection
• Thermally Enhanced SOP-8 (Exposed Pad) Package
• RoHS Compliant and Halogen Free

• Industrial and Commercial Low Power Systems
• Computer Peripherals
• LCD Monitors and TVs
• Green Electronics/Appliances
• Point of Load Regulation of High-Performance DSPs, FPGAs and ASICs.