The **ADP162ACBZ-3.0-R7** is a high-performance, ultra-low quiescent current, low dropout (LDO) linear regulator manufactured by Analog Devices. It is specifically designed for portable and battery-operated applications where power efficiency and space-saving are critical. --- ### ## Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Analog Devices Inc. | | **Output Voltage** | 3.0V (Fixed) | | **Input Voltage Range** | 2.2V to 5.5V | | **Max Output Current** | 150 mA | | **Dropout Voltage** | ~105 mV @ 150 mA | | **Quiescent Current (Iq)** | 560 nA (No Load) | | **Shutdown Current** | < 50 nA | | **Package Type** | 4-ball WLCSP (Wafer Level Chip Scale Package) | | **PSR (Power Supply Rejection)** | 70 dB @ 1 kHz | --- ### ## Key Electronic Features ### 1. Ultra-Low Quiescent Current The standout feature of the ADP162 series is its **560 nanoampere (nA)** quiescent current. This allows the device to remain active with minimal drain on the battery, significantly extending the standby life of portable electronics. ### 2. Low Dropout Voltage (LDO) With a dropout voltage of only 105 mV at full load, the regulator can maintain a stable 3.0V output even when the input battery voltage drops very close to the target output. ### 3. Stability with Small Capacitors The internal circuitry is optimized for stability using small **1.0 μF ceramic input and output capacitors**. This reduces the total PCB footprint and BOM (Bill of Materials) cost. ### 4. Protection Circuitry The device includes several integrated safety features to prevent hardware failure: * **Overcurrent Protection:** Limits output current during short circuits. * **Thermal Overload Protection:** Shuts down the device if the junction temperature exceeds safe limits. --- ### ## Typical Application Circuit In a standard design, the ADP162 requires only two external components to function: ```mermaid graph LR Vin[Input Voltage 2.2V-5.5V] --> Cin(1uF Capacitor) Cin --> ADP162[ADP162ACBZ-3.0] ADP162 --> Cout(1uF Capacitor) Cout --> Vout[3.0V Output] EN[Enable Pin] --> ADP162 ``` --- ### ## Common Use Cases * **Wearable Devices:** Smartwatches and fitness trackers. * **IoT Sensors:** Remote wireless nodes that sleep for long periods. * **Mobile Handsets:** Maintaining power to memory or RTCs (Real-Time Clocks). * **Medical Imaging:** Low-noise power for portable diagnostic tools.