IFX80471SKV数据手册集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF

描述 Description

The IFX80471 step-down DC-DC switching controllers provide high efficiency over loads ranging from 1mA up to 2.3A. A unique PWM/PFM control scheme operates with a duty cycle up to 100% resulting in a very low dropout voltage. This control scheme eliminates minimum load requirements and reduces the supply current under light loads to 120μA, depending on dimensioning of external components.

特性 Features

• Input voltage range from 5V up to 60V
• Adjustable Output Voltage
• Output voltage accuracy: 3%
• Output current up to 2.3A
• 100% maximum duty cycle
• Less than 120μA quiescent current at low loads*
• 2μA max. shutdown current at device off (IFX80471SKV)
• Fixed 360kHz switching frequency
• Frequency synchronization input for external clocks
• Current Mode control scheme
• Integrated output under voltage reset circuit**
• On chip low battery detector (on chip comparator)
• Temperature range -40°C to 125 °C
• Green Product (RoHS compliant)
* dependent on external component ** for the adjustable version IFX80471SKV the reset functionality is available for output voltages > 7V

优势:
• Lowest Current Consumption
• High Input Voltage (>30V)
• High Output Current (>400mA)
• Highest Efficiency
• Wide Temperature Range

应用 Application

• Smart Metering
• Industrial Automation
• Medical & Healthcare
• Building Automation

简介

IFX80471SKV属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的IFX80471SKVDC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。