SC471中文资料Synchronous Buck Controller with Multi-Level VOUT Transition Support数据手册Semtech规格书

描述 Description

Not Recommended for New Designs - Last Day of purchase: 5/1/11

特性 Features

• VOUT Programmable 0.75V to 5.25V with Integrated Transition Support
• VBAT Range 3V to 25V
• Soft Shutoff at Output
• Current Sense Using Low-side RDS(ON) or Resistor Sensing
• Adjustable Cycle-by-Cycle Valley Current Limit
• 325kHz Fixed-Frequency
• Constant On-Time for Fast Dynamic Response and Reduced Output Capacitance
• Automatic Smart Power Save (patent pending)
• Internal Soft-Start
• Over-Voltage/Under-Voltage Fault Protection
• Power Good Output with Transition Blanking
• 1μA Typical Shutdown Current
• 500μA Typical Operating Current
• Tiny 3×3mm, 16 Pin MLPQ Package
• Low External Part Count
• Industrial Temperature Range
• 0.85% Internal Reference
• 1A/3A Non-Overlapping Gate Drive with SmartDriver™ Technology
• High Efficiency > 90%
• This Product is Fully WEEE and RoHS Compliant

应用 Application

·Notebook/Sub-Notebook Graphics Voltage Controllers

·Tablet PCs

·Embedded Applications