TMI2243B数据手册Tollsemi中文资料规格书

描述 Description

TMI2243B is a wide input voltage, fixed 5V output voltage, high efficiency active CC step-down DC/DC converter that operates in either CV (Constant 5V Output Voltage) mode or CC (Constant Output Current) mode. TMI2243B provides up to typical 3.7A output current limit at 5V output. Maximum 100% duty cycle could be obtained. TMI2243B internal integrate 75mΩ high side and 40mΩ low side power MOSFET.Advanced production features include UVLO, Thermal Shutdown, Soft Start and input OVP.

特性 Features

• P-MOS+N-MOS Switch Structure
• Wide Input Voltage: 4.5V to 30V
• High Efficiency up to 92%@12V to 5V/3.4A
• Up to 3.7A Output Current Limit at 5V Output
• PFM mode in Light Load Condition
• Internal Compensation
• Output Line Drop Compensation
• Hiccup Output Short Current Protection
• ±2% Output Voltage Accuracy
• Integrated Soft Start
• Thermal Shutdown
• Duty Cycle up to 100%
• Frequency Jitter for EMI Consideration
• Low BOM Cost
• SOP8 Package

应用 Application

• Car Charger/ Adaptor
• Rechargeable Portable Devices
• General-Purpose CC/CV Power Suppliers