**ADP162AUJZ-0-R7: A 0V, 150mA Ultra-Low Quiescent Current Linear Regulator for Power-Sensitive Applications**
In the rapidly evolving world of electronics, the demand for efficient, compact, and always-on power management solutions is greater than ever. The **ADP162AUJZ-0-R7** from Analog Devices stands out as a critical component engineered specifically for power-sensitive applications where every microwatt counts. This ultra-low dropout (LDO) linear regulator is designed to provide a stable, clean output voltage with an unparalleled focus on minimizing quiescent current (I_Q), making it an ideal choice for battery-powered devices that require extended operational life.
At the heart of its design is an **ultra-low quiescent current of just 900 nA** (typical). This remarkably low figure is a game-changer for applications that spend significant time in standby or sleep modes, such as wireless sensors, IoT nodes, wearable health monitors, and portable medical devices. By drastically reducing the current drawn when regulating with very light loads, the ADP162 significantly prolongs battery life, ensuring that devices can operate for years without needing a battery replacement.
A standout feature of this LDO is its **0V start-up capability**. Unlike many regulators that require a significant input voltage to begin operation, the ADP162 can start with an input voltage as low as 0V and will begin regulating as soon as Vin exceeds approximately 0.9V. This allows it to efficiently harvest and utilize every last bit of energy from depleted batteries or energy-harvesting sources like solar cells or thermoelectric generators, ensuring functionality even in extremely low-power scenarios.
Despite its minuscule power consumption, the regulator does not compromise on performance. It delivers a solid **output current of up to 150mA**, sufficient to power a microcontroller, sensors, and wireless communication modules like Bluetooth Low Energy (BLE). It offers excellent line and load regulation, maintaining a stable 1.8V output (fixed version) with a low dropout voltage of 180mV at a 150mA load. Furthermore, it incorporates key protection features such as **current limiting and thermal shutdown**, safeguarding both the regulator and the downstream circuitry under fault conditions.
Housed in a tiny, 5-lead TSOT package, the ADP162AUJZ-0-R7 is built for space-constrained PCB designs, offering a high-performance power solution in a minimal footprint. Its combination of ultra-low I_Q, 0V start-up, and robust 150mA output current provides designers with a powerful tool to tackle the most challenging power budget constraints.
**ICGOODFIND:** The ADP162AUJZ-0-R7 is a pinnacle of power efficiency, **masterfully balancing ultra-low quiescent current with reliable 150mA output performance**. Its ability to operate from 0V makes it exceptionally versatile for energy harvesting and deeply discharged batteries, establishing it as a top-tier solution for next-generation, power-sensitive IoT and portable devices.
**Keywords:** Ultra-Low Quiescent Current, 0V Start-Up, 150mA LDO Regulator, Power-Sensitive Applications, Energy Harvesting.
