STMicroelectronics STMPS2171STR Power Switch IC
- Brand: STMicroelectronics
- Product Code: STMPS2171STR
- Availability: In Stock
$0.21
- Ex Tax: $0.21
STMicroelectronics STMPS2171STR: High-Performance Power Switch for Modern Electronics
The STMicroelectronics STMPS2171STR is a cutting-edge power switch IC designed for engineers seeking reliable load management in compact electronic systems. This high-side N-channel switch combines robust performance with advanced protection features, making it ideal for portable devices, industrial equipment, and automotive applications. With its ultra-low 90mΩ Rds(on) and integrated safety mechanisms, this device sets new standards for efficiency and durability in power management solutions.
Key Features at a Glance
| Parameter | Specification |
|---|---|
| Max Output Current | 1A |
| Rds(on) | 90mΩ |
| Operating Voltage | 2.7V - 5.5V |
| Protection Features | Current Limiting, Thermal Shutdown, Reverse Current Blocking |
Engineered for versatility, the STMPS2171STR operates seamlessly across a wide 2.7V to 5.5V voltage range while maintaining exceptional efficiency. Its non-inverting interface simplifies integration with standard digital control circuits, and the SOT-23-5 package ensures space-saving implementation on densely populated PCBs. The device's -40°C to 125°C operating temperature range guarantees reliable performance in both extreme industrial environments and consumer electronics applications.
What truly distinguishes this power switch is its comprehensive protection architecture. The built-in current limiting circuitry prevents overcurrent damage without requiring external sense resistors, while thermal shutdown safeguards against overheating. Unique reverse current protection prevents backflow during shutdown states - a critical feature for battery-powered systems. These intelligent safeguards work in harmony to protect both the switch itself and connected components, significantly improving system reliability.
For design flexibility, the STMPS2171STR requires no external Vcc supply, drawing power directly from the load voltage rail. This innovative architecture reduces component count and simplifies power supply design. The high-side configuration enables clean load switching without ground path disruption, making it perfect for applications where signal integrity is critical.
Manufacturers benefit from the device's surface-mount SOT-23-5 package that supports automated assembly processes. The compact footprint and robust performance characteristics make it particularly suitable for mobile devices, wearable electronics, and IoT sensors where space constraints and power efficiency are paramount. Industrial control systems also gain from its reliable operation in harsh environments, while automotive applications leverage its temperature resilience and short-circuit protection.
Tags: Power Management IC, Load Switch Controller, High-Side Switch, Compact SOT Package, Electronic Circuit Protection