**ADP162AUJZ-7-R7: A 7V, 150mA Ultra-Low Quiescent Current LDO Regulator for Battery-Powered Applications**

In the rapidly evolving landscape of portable electronics and IoT devices, power management is a critical design challenge. The **ADP162AUJZ-7-R7** from Analog Devices emerges as a highly optimized solution, specifically engineered to extend battery life in power-sensitive applications. This low-dropout (LDO) regulator combines a fixed 7V output with a robust 150mA output current capability, making it an ideal choice for a wide array of battery-powered systems.

The defining characteristic of this LDO is its **ultra-low quiescent current (IQ) of just 800 nA (typical)**. Quiescent current is the current consumed by the regulator itself when it is active but not supplying significant load current. In battery-powered devices that spend a majority of their operational life in standby or sleep modes, a high IQ can be a primary source of energy drain. The ADP162's remarkably low IQ ensures that **battery life is significantly extended**, enabling applications to run for months or even years on a single primary cell battery.

Beyond its low IQ, the ADP162 is designed for robustness and simplicity. It features a very low dropout voltage, which allows it to continue regulating its 7V output even as the input voltage source (e.g., a battery) decays to a level very close to the output. This capability ensures stable and reliable performance throughout the vast majority of a battery's discharge cycle. The device is also **stable with a small, space-saving 1 µF ceramic output capacitor**, reducing the total solution size and bill-of-materials cost—a crucial factor for compact designs.

Housed in a tiny 5-lead TSOT package, the ADP162AUJZ-7-R7 offers a minimal footprint, perfect for space-constrained PCB designs. It incorporates key protection features such as **current limit and thermal shutdown**, safeguarding both the regulator and the downstream circuitry under fault conditions. Its wide input voltage range of up to 40V provides additional design flexibility and resilience against voltage spikes.

**ICGOOODFIND:** The ADP162AUJZ-7-R7 stands out as a superior power management IC for designers prioritizing longevity and efficiency. Its exceptional combination of ultra-low quiescent current, adequate output current, high input voltage tolerance, and a miniature form factor makes it an exemplary choice for powering wireless sensors, medical devices, utility meters, and other always-on, battery-dependent applications.

**Keywords:** Ultra-Low Quiescent Current, Battery-Powered Applications, LDO Regulator, Extended Battery Life, Low Dropout Voltage.