The **LR9280CL-15-AE2-R** is a specific part number for a Low Dropout (LDO) linear regulator, typically manufactured by UTC (Unisonic Technologies Co., Ltd). Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Overview The LR9280 series consists of high-accuracy CMOS-based LDO regulators. They are designed for low power consumption and high stability, making them ideal for battery-powered or space-constrained electronic devices. ### 2. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage ($V_{OUT}$)** | 1.5V (Fixed) | | **Input Voltage Range ($V_{IN}$)** | Max 6.0V | | **Maximum Output Current ($I_{OUT}$)** | 600mA | | **Dropout Voltage ($V_{DROP}$)** | ~0.13V @ 300mA | | **Quiescent Current ($I_Q$)** | ~50µA | | **Operating Temperature** | -40°C to +85°C | | **Package Type** | SOT-23-3 (based on the "AE2" suffix) | --- ### 3. Part Number Decoding The alphanumeric string provides specific details about the component's configuration: * **LR9280**: The series name (High current LDO). * **CL**: Indicates specific lead-free and halogen-free standards. * **15**: Represents the fixed output voltage (**1.5V**). * **AE2**: Denotes the package type (typically **SOT-23-3**). * **R**: Indicates the packaging method (**Tape and Reel**). --- ### 4. Key Features * **Low Dropout Voltage:** Efficiently regulates voltage even when the input voltage is very close to the output voltage. * **Built-in Protections:** Usually includes over-current protection and thermal shutdown circuitry. * **Low Noise:** Suitable for sensitive RF and analog circuits. * **Fast Response:** Good transient response to changes in load current. ### 5. Common Applications This part is commonly found in: 1. **Mobile Communication:** Smartphones and tablets. 2. **Portable Electronics:** MP3 players, digital cameras, and handheld gaming devices. 3. **Battery Powered Equipment:** Tools or sensors where power efficiency is critical. 4. **Reference Voltage:** Providing a stable 1.5V rail for microprocessors or DSP cores. --- ### 6. Typical Circuit Diagram ```text Input (Vin) ----[ IN OUT ]---- Output (1.5V) [ GND ] | Ground ``` *(Note: Capacitors are usually required on both the Input and Output pins for stability and noise filtering.)*