The **ADP3335ACPZ-3.3-R7** is a high-precision, low dropout (LDO) linear regulator manufactured by Analog Devices. It is part of the `anyCAP®` family, known for its stability and extremely low dropout voltage. --- ### ## Technical Specifications Below is a breakdown of the primary electrical characteristics: | Feature | Specification | | :--- | :--- | | **Output Voltage** | Fixed 3.3V | | **Input Voltage Range** | 2.6V to 12V | | **Output Current** | 500 mA (Maximum) | | **Dropout Voltage** | 200 mV (Typical at 500 mA) | | **Output Tolerance** | ±0.9% at 25°C (±1.8% over line/load/temp) | | **Quiescent Current** | 80 µA (Typical at no load) | | **Package Type** | LFCSP-8 (3mm x 3mm) | | **Operating Temp** | -40°C to +85°C | --- ### ## Key Electronic Features 1. **anyCAP® Technology**: This regulator is stable with any type of capacitor, including low ESR (Equivalent Series Resistance) multi-layer ceramic capacitors (MLCCs). Unlike many LDOs, it does not require a specific ESR range to maintain stability. 2. **Low Dropout (LDO)**: With a dropout of only 200mV at full load, it can maintain a 3.3V output even when the input voltage drops as low as 3.5V, making it highly efficient for battery-powered devices. 3. **Thermal & Current Protection**: It includes internal thermal limiting and current limit protection to prevent the device from failing under fault conditions. 4. **Shutdown Mode**: The device features a logic-controlled shutdown pin. When disabled, the ground current drops to less than 1 µA, which is critical for preserving battery life in portable electronics. 5. **Error Flag**: An open-collector "Error" output signals when the output voltage falls out of regulation (typically 5% below nominal). --- ### ## Pin Configuration (LFCSP-8) | Pin # | Pin Name | Description | | :--- | :--- | :--- | | 1-2 | OUT | Output voltage (3.3V). Connect bypass capacitor. | | 3 | ERR | Error Flag (active low). Indicates out-of-regulation. | | 4 | GND | Ground reference. | | 5 | SD | Shutdown Input. Logic high for ON, Logic low for OFF. | | 6 | NR | Noise Reduction. Connect a cap to reduce output noise. | | 7-8 | IN | Input Voltage supply. | | EP | Pad | Exposed Pad. Must be soldered to ground for thermal dissipation. | --- ### ## Typical Application Circuit ```text [Input 3.5V-12V] ----+----[ IN ] [ OUT ]----+---- [Output 3.3V] | | [Cin] [Cout] | | GND GND ``` ---