## LR1106-35-AF5-R: Technical Overview The **LR1106-35-AF5-R** is a high-accuracy, low-dropout (LDO) linear voltage regulator. It is designed for battery-powered applications where low power consumption and stability are critical. --- ### 1. Key Technical Specifications Below are the primary electrical characteristics of this specific component: | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 3.5V (Fixed) | | **Input Voltage Range** | Up to 6.0V | | **Output Current** | 600mA (Max) | | **Dropout Voltage** | ~300mV @ 600mA (Typical) | | **Quiescent Current** | ~50µA (Low Power) | | **Package Type** | SOT-25 / SOT-23-5 | | **Operating Temperature** | -40°C to +85°C | --- ### 2. Part Number Breakdown Understanding the suffix codes helps identify the specific variant of this IC: * **LR1106**: Series name (Low Noise, LDO Regulator). * **35**: Indicates a fixed output voltage of **3.5V**. * **AF5**: Refers to the **SOT-25** (also known as SOT-23-5) package type. * **R**: Indicates the packaging method, typically **Tape & Reel**. --- ### 3. Pin Configuration The device usually follows the standard SOT-25 pinout: 1. **VIN**: Input Voltage Supply. 2. **GND**: Ground Reference. 3. **EN/CE**: Chip Enable (High = On, Low = Shutdown). 4. **NC/BP**: No Connection or Bypass Capacitor (for noise reduction). 5. **VOUT**: Regulated Output Voltage. --- ### 4. Application Circuit Example To ensure stability, LDOs require external capacitors. Below is a typical implementation: ```c // Typical Peripheral Connections [Input Source] ---> (VIN Pin) --- [1uF Ceramic Cap] --- GND (EN Pin) ---> [Logic High/Control Pin] (VOUT Pin) ---> [3.5V Output] --- [2.2uF Ceramic Cap] --- GND ``` --- ### 5. Notable Features * **Low Dropout:** Allows the device to maintain 3.5V output even when the input voltage is very close to 3.8V. * **Built-in Protections:** Includes thermal shutdown and current limiting to prevent damage during short circuits or overheating. * **Low Noise:** Suitable for sensitive RF and analog components.