The **UT4800L-S08-R** is a high-performance N-Channel enhancement mode Power MOSFET, commonly used in power management applications. It is manufactured by UTC (Unisonic Technologies Co., Ltd). ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the UT4800L-S08-R: | Parameter | Symbol | Maximum Rating | Unit | | :--- | :--- | :--- | :--- | | Drain-Source Voltage | $V_{DSS}$ | 30 | V | | Gate-Source Voltage | $V_{GSS}$ | ±20 | V | | Continuous Drain Current | $I_D$ | 6.9 | A | | Pulsed Drain Current | $I_{DM}$ | 30 | A | | Total Power Dissipation | $P_D$ | 2.5 | W | | Drain-Source On-Resistance | $R_{DS(ON)}$ | 28 (Typ.) | mΩ | --- ### 2. Physical & Packaging Characteristics The part numbering code provides specific details about the packaging and delivery format: * **S08**: Indicates the package type is **SOP-8** (Small Outline Package with 8 pins). * **R**: Indicates the packing type is **Tape & Reel**. * **L**: Signifies **Lead-free** plating (RoHS compliant). ### 3. Key Features * **Low On-Resistance**: Helps in reducing power loss during conduction. * **High-Speed Switching**: Optimized for high-frequency DC-DC converters. * **Low Gate Charge**: Reduces the requirements for the gate driver circuit. * **High Density Cell Design**: Provides extremely low $R_{DS(ON)}$ for its footprint size. ### 4. Typical Applications The UT4800L-S08-R is typically integrated into circuits requiring efficient power switching: 1. **Notebook PC Motherboards**: Used in power distribution and CPU core power supplies. 2. **DC-DC Converters**: Found in buck or boost converters for voltage regulation. 3. **Battery Management Systems**: Utilized for battery protection and charging circuits. 4. **Load Switches**: Acting as an electronic switch to turn peripherals on or off. --- ### 5. Pin Configuration (SOP-8) | Pin Number | Assignment | | :--- | :--- | | 1, 2, 3 | **Source** | | 4 | **Gate** | | 5, 6, 7, 8 | **Drain** |