The **ADP5140WACCZ-R7** is a high-performance, automotive-qualified power management integrated circuit (PMIC) designed by Analog Devices. It is primarily used to provide stable power rails for microprocessors, FPGAs, and sensitive analog circuitry. --- ### ## Technical Specifications Below are the primary technical parameters for the ADP5140WACCZ-R7: | Feature | Specification | | :--- | :--- | | **Function** | Multi-output Buck Regulator | | **Number of Outputs** | 4 (Typically 4 Step-down converters) | | **Input Voltage Range** | 4.5V to 15.0V | | **Switching Frequency** | 2.1 MHz (Fixed) | | **Output Current** | Up to 2A per channel (config dependent) | | **Package** | 40-Lead LFCSP (6mm x 6mm) | | **Operating Temp** | -40°C to +125°C (Automotive Grade) | | **Qualification** | AEC-Q100 Qualified | --- ### ## Key Features and Components 1. **Integrated MOSFETs**: The device integrates high-side and low-side power MOSFETs for all four channels, reducing the external component count and saving PCB space. 2. **Phase Shifting**: To reduce input ripple current and the size of the input capacitors, the four buck regulators operate with a phase-shifted switching scheme. 3. **Precision Enable & Reset**: Includes individual enable pins for power sequencing and a dedicated Power-Good (PGOOD) signal for system monitoring. 4. **Safety Mechanisms**: * **Overcurrent Protection (OCP)**: Prevents damage during short circuits. * **Thermal Shutdown (TSD)**: Automatically shuts down if the internal temperature exceeds safe limits. * **Undervoltage Lockout (UVLO)**: Ensures the device does not operate at insufficient input voltages. --- ### ## Typical Application Circuit The following represents a high-level logic of how the device is integrated into a system: ```mermaid graph LR Vin[12V DC Input] --> ADP5140 ADP5140 --> Rail1[1.2V Core] ADP5140 --> Rail2[1.8V I/O] ADP5140 --> Rail3[3.3V Aux] ADP5140 --> Rail4[5.0V Analog] SystemMCU -->|Enable/PGOOD| ADP5140 ``` --- ### ## Part Number Breakdown: `ADP5140WACCZ-R7` * **ADP5140**: Base part number for the quad-buck regulator. * **W**: Denotes Automotive Grade (AEC-Q100). * **A**: Version/Revision code. * **CP/CC**: Package type (LFCSP). * **Z**: RoHS Compliant / Lead-Free. * **R7**: Packaging format (7-inch Tape and Reel, typically 1,500 units).