This document describes the features and characteristics of the Analog Devices anyCAP Low Dropout Regulator ADP3338, including high accuracy, ultralow dropout voltage, stability, and reliability.
The ADP3338 is a member of Analog Devices' ADP33xx family of precision low‑dropout (LDO) voltage regulators. It operates from 2.7 V to 8 V input and delivers up to 1 A of output current, using a novel anyCAP architecture that allows stability with any good‑quality capacitor. Key features include ±0.8 % output voltage accuracy at 25 °C, ±1.4 % over temperature, an ultralow typical dropout of 190 mV at 1 A, only 1 µF output capacitor requirement, 110 µA quiescent current, and built‑in current‑limit and thermal‑overload protection. This manual is written in Chinese.
| Output Voltage Accuracy | ±0.8 % @ 25 °C, ±1.4 % over temperature |
|---|---|
| Dropout Voltage (typical) | 190 mV @ 1 A |
| Maximum Output Current | 1 A |
| Input Voltage Range | 2.7 V to 8 V |
| Quiescent Current | 110 µA typ |
| Thermal Overload Protection Limit | 160 °C die temperature |
| Package | SOT‑223 |
The typical dropout voltage is 190 mV at a load current of 1 A.
Only a 1 µF output capacitor is required for stability.
The device draws about 110 µA of quiescent current under light load.
It includes both current‑limit and thermal‑overload protection circuits.