SC3303数据手册集成电路（IC）的线性稳压器控制器规格书PDF

描述 Description

The SC3303 is an integrated, synchronous 3A EcoSpeed® step-down regulator. It incorporates Semtech’s advanced, patented adaptive on-time architecture to achieve bestin-class dynamic performance using point-of-load applications.

特性 Features

·Input voltage — 5.5V to 28V
·Output voltage — 0.75V to 7.5V
·Output current — Up to 3A
·Internal reference — + 1%
·Small ceramic capacitors
·Power good pin (open-drain)
·Adaptive on-time control:
·Excellent transient response
·Programmable pseudo-fixed frequency during CCM
·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 and smart PSAVE
·Internal LDO for bias voltage
·Ultra-small lead-free 3 x 3(mm), 10-Pin MLPD package
·WEEE and RoHS compliant and halogen free

应用 Application

·Networking Equipment, Embedded Systems
·Medical Equipment, Office Automation
·Instrumentation, Portable Systems
·Consumer Devices such as DTV and Set-top Boxes
·POL Converters

简介

SC3303属于集成电路（IC）的线性稳压器控制器。由制造生产的SC3303稳压器 - 线性 + 开关此产品族中的产品用于构建执行 DC-DC 转换或电压调节功能的电路，采用的是开关模式和线性稳压器功能的组合。虽然具体的拓扑各不相同，但此类产品的主要目的是将开关模式技术的效率优势与线性稳压技术的低噪声特性结合在一起。