The **ADP162ACBZ-2.3-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 portable electronics where space and power efficiency are critical. --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Output Voltage (Fixed)** | 2.3 V | | **Input Voltage Range** | 2.2 V to 5.5 V | | **Maximum Output Current** | 150 mA | | **Dropout Voltage** | 72 mV @ 150 mA load | | **Quiescent Current (No Load)** | 560 nA (Ultra-low) | | **Shutdown Current** | < 50 nA | | **Package** | 4-ball WLCSP (Wafer Level Chip Scale Package) | --- ### 2. Functional Features * **Ultra-Low Quiescent Current:** One of its defining features is the sub-microamp current consumption when idle, which significantly extends battery life in "always-on" systems. * **Stability:** It is stable with small 1 μF ceramic input and output capacitors, making it ideal for space-constrained PCB designs. * **Protection Circuits:** * **Overcurrent Protection:** Prevents damage during short-circuit conditions. * **Thermal Overload Protection:** Shuts down the device if the junction temperature exceeds safe limits. * **Enable Pin:** Includes a logic-controlled enable input to turn the device on or off. --- ### 3. Pin Configuration (WLCSP) The device uses a tiny 4-ball footprint: | Ball | Symbol | Description | | :--- | :--- | :--- | | A1 | **VIN** | Regulator Input Supply. | | A2 | **VOUT** | Regulated Output Voltage. | | B1 | **EN** | Enable Input. Drive high to turn on; low to turn off. | | B2 | **GND** | Ground Reference. | --- ### 4. Common Applications * **Wearables:** Smartwatches, fitness trackers, and hearing aids. * **IoT Sensors:** Remote wireless sensor nodes that need to operate for years on a single coin cell battery. * **Portable Medical Devices:** Glucose meters and heart rate monitors. * **Mobile Phones:** Powering low-power sub-circuits or memory rails. --- ### 5. Part Number Breakdown The suffix code **ACBZ-2.3-R7** provides specific ordering information: * **ACBZ:** Indicates the WLCSP package type and temperature range. * **2.3:** Denotes the fixed 2.3V output. * **R7:** Indicates the packaging format (7-inch Reel, typically containing 3,000 pieces). ---