The **UL82AG-SH2-R** is a specific part number belonging to a series of **Linear Voltage Regulators**, typically manufactured by **UTC (Unisonic Technologies)**. This specific component is a Low Dropout (LDO) regulator designed to provide a stable output voltage from a higher input voltage. --- ### 1. Key Technical Specifications The "UL82" family is characterized by high precision and low noise. Below are the typical technical parameters for this part: | Parameter | Specification (Typical) | | :--- | :--- | | **Output Voltage** | 1.2V / 1.5V / 1.8V / 2.5V / 3.3V (Specific to suffix) | | **Input Voltage Range** | Up to 6V | | **Output Current** | 300mA to 500mA | | **Dropout Voltage** | Low (approx. 200mV at full load) | | **Package Type** | SOT-26 / SOT-25 (indicated by "SH2") | | **Operating Temp** | -40°C to +85°C | --- ### 2. Part Number Breakdown The nomenclature for UTC parts usually follows this structure: * **UL82**: The basic series model (High speed, Low Dropout, CMOS LDO). * **A/G**: Indicates the version or specific voltage accuracy (e.g., ±2%). * **SH2**: Refers to the **SOT-26** (Small Outline Transistor) package type. * **R**: Denotes **Tape and Reel** packaging for automated assembly. --- ### 3. Pinout Configuration (SOT-26) In a standard SOT-26 package for this regulator, the pins are generally assigned as follows: 1. **VIN**: Input Voltage. 2. **GND**: Ground. 3. **CE (Enable)**: High = On, Low = Shutdown. 4. **NC/BP**: No connection or Bypass Capacitor (for noise reduction). 5. **VOUT**: Regulated Output Voltage. 6. **NC**: No connection. --- ### 4. Common Applications Due to its small footprint and low dropout characteristics, it is frequently used in: * **Mobile Devices**: Smartphones and tablets. * **Battery Powered Equipment**: Maximizing battery life via low dropout. * **Precision Analog Circuits**: Where low noise is critical for sensors or ADCs. * **Camera Modules**: Providing stable power to CMOS sensors. --- ### 5. Implementation Circuit To ensure stability, the UL82AG-SH2-R typically requires external capacitors: ```markdown [Input Voltage] ----[ C1: 1uF ]----( VIN ) ( )----( VOUT )----[ C2: 1uF ]---- [Load] [Enable Signal] -------------------( CE ) ( GND ) | [Ground] ```