The **ADP3335ACPZ-2.5-R7** is a high-precision, low dropout (LDO) linear regulator manufactured by Analog Devices. It is part of the `anyCAP®` family, known for its stability with a wide range of output capacitors. --- ## 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 2.5V (Fixed) | | **Input Voltage Range** | 2.6V to 12V | | **Output Current** | 500 mA | | **Dropout Voltage** | 200 mV (typical at 500 mA) | | **Accuracy** | ±0.9% over line, load, and temperature | | **Package** | LFCSP-8 (3mm x 3mm) | | **Operating Temp** | -40°C to +85°C | --- ## 2. Core Features ### anyCAP® Technology The most distinctive feature of this IC is its stability. Unlike traditional LDOs that require a specific Equivalent Series Resistance (ESR) in the output capacitor, the ADP3335 is stable with **any** type of capacitor (MLCC ceramic, tantalum, or aluminum electrolytic). ### Low Quiescent Current It draws very little power when idle: * **Ground Current:** ~80 µA at light loads. * **Shutdown Mode:** Reduces current draw to < 1 µA, making it ideal for battery-powered devices. ### Protection Circuitry The device includes internal protection mechanisms to ensure longevity and safety: * **Thermal Overload Protection:** Shuts down the device if the junction temperature exceeds limits. * **Current Limiting:** Protects the regulator during short-circuit conditions. --- ## 3. Pin Configuration (LFCSP-8) | Pin No. | Name | Function | | :--- | :--- | :--- | | 1, 2 | **OUT** | Regulated 2.5V Output. | | 3 | **SENSE** | Feedback pin for voltage regulation. | | 4 | **GND** | Ground reference. | | 5 | **NR** | Noise Reduction; connect a capacitor here to bypass internal reference noise. | | 6 | **SD** | Shutdown (Active Low). Pull low to disable the device. | | 7, 8 | **IN** | Unregulated Input Voltage. | --- ## 4. Typical Application Circuit To implement this part, a basic circuit requires minimal external components: ```text [Vin] ----+----[ IN ] [ OUT ]----+---- [Vout: 2.5V] | | [Cin: 1uF] [Cout: 1uF] | [ ADP3335 ] | [GND] ----+----[ GND ] [ SENSE ]-+---- [GND] ``` --- ## 5. Part Number Breakdown * **ADP3335:** Base model number. * **ACPZ:** Package indicator (LFCSP) and Lead-free/RoHS compliance. * **2.5:** Fixed output voltage of 2.5 Volts. * **R7:** Packaging format (7-inch Tape and Reel, typically 1,500 units).