STMicroelectronics

L7987

The L7987 is a high-performance, step-down (buck) switching regulator from STMicroelectronics. It is designed to provide efficient and stable power conversion for a wide range of applications. Here's a brief description, features, and applications of the L7987:

Description:

The L7987 is a monolithic step-down switching regulator that uses a current mode control architecture. It features a wide input voltage range, high efficiency, and excellent thermal performance. The device is available in a compact 16-pin TSSOP package, making it suitable for space-constrained applications.

Features:

1. Wide input voltage range: 4V to 40V
2. Output voltage as low as 0.9V
3. Adjustable output current limit up to 5A
4. High efficiency (up to 93%)
5. Soft-start and short-circuit protection
6. Over-voltage, over-temperature, and under-voltage protection
7. Low quiescent current (down to 100µA in standby mode)
8. External compensation for easy design-in
9. Synchronous rectification for improved efficiency at light loads
10. Frequency foldback for protection against output short-circuit conditions
11. 16-pin TSSOP package

Applications:

1. Portable devices: Powering smartphones, tablets, and other handheld devices
2. Power banks and battery chargers: Efficiently stepping down voltage from a battery to charge other devices
3. Industrial equipment: Providing stable power to microcontrollers and other components in industrial applications
4. LED lighting: Driving high-current LED arrays with precise current control
5. Medical devices: Providing regulated power to sensitive medical equipment
6. Consumer electronics: Powering a wide range of electronic devices, such as smart home devices, wearables, and IoT devices
7. Telecommunication equipment: Supplying stable power to routers, modems, and other network equipment

The L7987's combination of high efficiency, wide input voltage range, and robust protection features make it a versatile choice for various power conversion applications.