AAT4625 is a 1.0A current limited P-channel MOSFET power switch designed for high-side load switching applications. The switch operates with inputs ranging from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. An integrated current-limiting circuit protects the input supply against large changes in load current which may cause the supply to fall out of regulation. The AAT4625 is also protected from thermal overload which limits power dissipation and junction temperatures. The current limit threshold is factory programmed at 1.5A, with a maximum of 2.0A. The quiescent supply current is typically a low 16µA. In shutdown mode, the supply current decreases to less than 1µA. The AAT4625 is available in Pb-free, 8-pin SOP, TSSOP, or MSOP packages, and is specified over the -40°C to +85°C temperature range. The AAT4600 series is a family of adjustable and fixed SmartSwitch products with a range of current handling capabilities. Single versions with adjustable current limit (AAT4601) or fixed current limit (AAT4625) as well as dual versions with fixed current limit (AAT4626) are available.
The AAT4625 SmartSwitch from AnalogicTech is a P‑channel MOSFET power switch designed for high‑side load‑switching in USB‑1.1/2.0 and other 2.7 V‑5.5 V systems. It features a factory‑programmed 1.5 A current limit (up to 2 A) and a low quiescent supply current of about 16 µA (off‑state < 1 pA). The device includes over‑temperature shutdown, under‑voltage lockout, and a fault flag output.
The switch is offered in Pb‑free 8‑pin SOP, TSSOP, and MSOP packages and operates over a temperature range of –40 °C to +85 °C. Detailed pin descriptions, absolute maximum ratings, electrical characteristics, and typical performance curves are provided for designers.
| Input Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Minimum Continuous Current | 1.0 A |
| Maximum Current Limit | 2.0 A |
| Typical Quiescent Current | 16 µA |
| Off‑State Supply Current | < 1 pA |
| Operating Temperature Range | –40 °C to +85 °C |
| Package Types | 8‑pin SOP, TSSOP, MSOP |
| Fault Flag Output | Active‑low open‑drain |
The device operates with an input voltage from 2.7 V to 5.5 V.
Typical quiescent current is about 16 µA.
The switch is offered in 8‑pin SOP, TSSOP, and MSOP packages.