SC172中文资料2A EcoSpeed® Synchronous Step-Down Regulator with Optional Ultrasonic Power Save数据手册Semtech规格书

描述 Description

The SC172 is an integrated, synchronous 2A EcoSpeed® step-down regulator, which incorporates Semtech’s advanced, patented adaptive on-time architecture to achieve best-in-class performance in dynamic point-ofload applications. The input voltage range is 3V to 5.5V with a programmable output voltage from 0.75V up to 95% x VIN. The device features low-RDS(ON) internal switches and optional PSAVE mode for high efficiency across the output load range.

特性 Features

·VIN: 3V to 5.5V
·VOUT: 0.75V to 95% x VIN
·IOUT: Up to 2A
·Low RDS(ON) Switches·Up to 95% Peak Efficiency

·High Output Accuracy
·Small Ceramic Capacitors
·Power Good Pin (Open-Drain)
·Patented Adaptive On-Time Control:·Excellent Transient Response
·Programmable Pseudo-fixed Frequency

·Fault Protection Features:·Cycle-by-Cycle Current Limit
·Short Circuit Protection
·Over and Under Output Voltage Protection
·Over-Temperature

·Internal Soft start
·Ultrasonic Power Save
·Smart Power Save
·Ultra-Small Lead-Free 3x3mm, 10-Pin MLPD Package
·Fully WEEE and RoHS Complian

应用 Application

·Networking Equipment, Embedded Systems
·Medical Equipment, Office Automation
·Instrumentation, Portable Systems
·Consumer Devices (DTV, Set-top Box, ... )
·5V POL Converters