The **ADP160ACBZ-2.85-R7** is a high-performance, ultra-low quiescent current, low dropout (LDO) linear regulator manufactured by Analog Devices. It is specifically designed for battery-powered and portable electronics where power efficiency and space are critical. --- ### ## 1. Key Specifications and Features | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 2.85 V (Fixed) | | **Input Voltage Range** | 2.2 V to 5.5 V | | **Max Output Current** | 150 mA | | **Dropout Voltage** | ~60 mV @ 150 mA load | | **Quiescent Current ($I_Q$)** | 560 nA (No load) | | **Package Type** | WLCSP (Wafer Level Chip Scale Package) | | **Pin Count** | 4-ball | | **Operating Temp** | -40°C to +125°C | --- ### ## 2. Detailed Component Breakdown #### ### Ultra-Low Quiescent Current The standout feature of this part is its **560 nA** quiescent current. This allows devices to remain in standby mode for significantly longer periods compared to standard LDOs, which typically consume microamps (µA) of current. #### ### Low Dropout (LDO) Performance With a dropout voltage of only **60 mV** at full load, the regulator can maintain a stable 2.85V output even when the battery voltage drops very close to the output target. This maximizes the usable life of Lithium-ion or alkaline batteries. #### ### Protection Circuitry Despite its tiny size, the ADP160 includes several internal safety mechanisms: * **Overcurrent Protection:** Limits output current to prevent damage during short circuits. * **Thermal Overload Protection:** Shuts down the device if the junction temperature exceeds safe limits. * **Under-Voltage Lockout (UVLO):** Ensures the device doesn't operate erratically when the input voltage is too low. --- ### ## 3. Typical Application Circuit The ADP160 is designed for "stable-with-ceramic" operation, meaning it requires minimal external components. ```text Input (2.2V - 5.5V) ----[ C_IN: 1uF ]----( VIN ) ( VOUT )----[ C_OUT: 1uF ]---- Output (2.85V) | | ( EN ) ( GND ) | | Enable Signal -----------------------------+------------+--------------------------- Ground ``` --- ### ## 4. Ordering Information Code Breakdown * **ADP160:** Model Series (Ultra-low IQ LDO). * **ACBZ:** Package designator (WLCSP package). * **2.85:** Fixed output voltage (2.85 Volts). * **R7:** Packaging format (7-inch Reel, typically 3,000 units). --- ### ## 5. Common Use Cases * **Wearables:** Smartwatches and fitness trackers. * **IoT Sensors:** Remote sensors that must run for years on a single coin-cell battery. * **Mobile Handsets:** Specific rails for low-power peripherals or memory. * **Medical Devices:** Portable glucose meters or heart rate monitors.