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RT8272/RT8250 4A输出DC-DC降压方案

RT8272/RT8250 4A输出DC-DC降压方案

简要描述:

RT8250概述:3A,23V,340kHz同步降压DC-DC RT8272/RT8250 4A输出DC-DC降压方案

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RT8272/RT8250 4A输出DC-DC降压方案

RT8250概述:3A,23V,340kHz同步降压DC-DC   RT8272/RT8250 4A输出DC-DC降压方案
The RT8250 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 RT8250's current mode architecture and external compensation allow the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RT8250 also provides output under voltage protection and thermal shutdown protection. The low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.


RT8250技术特性
• RT8250 4.5V to 23V Input Voltage Range
• RT8250 1.5% High Accuracy Feedback Voltage
• RT8250 3A Output Current
• RT8250 Integrated N-MOSFET Switches
• RT8250 Current Mode Control
• RT8250 Fixed Frequency Operation : 340kHz
• RT8250 Output Adjustable from 0.925V to 20V
• RT8250 Up to 95% Efficiency
• RT8250 Programmable Soft-Start
• RT8250 Stable with Low-ESR Ceramic Output Capacitors
• RT8250 Cycle-by-Cycle Over Current Protection
• RT8250 Input Under Voltage Lockout
• RT8250 Output Under Voltage Protection
• RT8250 Thermal Shutdown Protection
• Thermally Enhanced SOP-8 (Exposed Pad) Package
• RoHS Compliant and Halogen Free


RT8250应用领域   
 

• 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.

 

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