## Overview of ADP176ARMZ-1.0-R7 The **ADP176ARMZ-1.0-R7** is a low-dropout (LDO) linear regulator manufactured by Analog Devices (ADI). It is designed to provide a high-current, low-noise power supply for noise-sensitive circuits, specifically targeting applications like high-speed data converters, RF components, and medical imaging. --- ### Technical Specifications | Parameter | Value | | :--- | :--- | | **Output Voltage** | 1.0 V (Fixed) | | **Input Voltage Range** | 2.5 V to 5.5 V | | **Maximum Output Current** | 700 mA | | **Dropout Voltage** | 160 mV (at 700 mA load) | | **PSRR (Power Supply Rejection Ratio)** | 65 dB at 10 kHz | | **Output Noise** | 30 µV rms (10 Hz to 100 kHz) | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | 8-Lead MSOP (Micro Small Outline Package) | --- ### Key Features 1. **Low Noise Performance:** Its low output noise makes it ideal for powering sensitive analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). 2. **Excellent PSRR:** High rejection of input ripples ensures that the output voltage remains stable even if the input supply is noisy. 3. **Soft Start Capability:** Reduces inrush current during startup, protecting the rest of the circuit. 4. **Reverse Current Protection:** Prevents damage to the device if the output voltage exceeds the input voltage. 5. **Thermal and Overcurrent Protection:** Includes internal circuitry to shut down the device in case of overheating or short circuits. --- ### Pin Configuration Summary | Pin Number | Name | Description | | :--- | :--- | :--- | | 1 | **VIN** | Regulator Input Supply. | | 2 | **EN** | Enable Input. High = On, Low = Off. | | 3 | **GND** | Ground. | | 4 | **NC/SS** | Soft Start (can be left open for internal default). | | 5 | **SENSE** | Sense input for precision voltage regulation. | | 6 | **VOUT** | Regulated Output Voltage. | | 7 | **NC** | No Connection. | | 8 | **NC** | No Connection. | --- ### Typical Application Circuit To ensure stability, the ADP176A requires the use of small ceramic capacitors. ```markdown Input (2.5V - 5.5V) ----[ 2.2µF Cap ]---- VIN (Pin 1) VOUT (Pin 6) ----[ 2.2µF Cap ]---- Output (1.0V) GND (Pin 3) --------------------- Common Ground ``` --- ### Ordering Information Detail * **ADP176A:** Device series name. * **RMZ:** Package code (MSOP). * **1.0:** Fixed output voltage of 1.0 Volts. * **R7:** 7-inch reel packaging (Tape and Reel).