描述 Description

The SC173A is an integrated, synchronous 3A EcoSpeed? step-down regulator, which incorporates Semtech’s advanced, patented adaptive on-time architecture to achieve best-in-class performance in dynamic point-of-load applications.

特性 Features

·VIN: 3V to 5.5V
·VOUT: 0.75V to 95% x VIN
·IOUT: Up to 3A
·Low RDS(ON) Switches·Up to 96% Peak Efficiency

·Enable High Threshold: 1V·Compatible with Low Voltage Logic

·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
·Smart Power Save
·Ultra-Small Lead-Free 3x3mm, 10-Pin MLPD Package
·Fully WEEE and RoHS Compliant

應(yīng)用 Application

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

簡介

SC173A屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由制造生產(chǎn)的SC173A穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。