STMicroelectronics

L7987LTR

The L7987LTR is a high-efficiency, step-down (buck) switching regulator from STMicroelectronics. It is designed to convert a higher input voltage to a lower output voltage, making it suitable for a wide range of applications that require regulated power supply.

Description:

The L7987LTR is a high-performance, synchronous, step-down switching regulator that can operate from a wide input voltage range of 4V to 40V. It features a compact thermally enhanced package, making it suitable for space-constrained applications. The device is available in a 20-pin HTSSOP package.

Features:

1. Wide input voltage range: 4V to 40V
2. Output voltage as low as 0.9V
3. High efficiency up to 93%
4. Synchronous rectification for improved efficiency
5. Internal soft-start and current limiting
6. Thermal shutdown and over-current protection
7. Small package size (HTSSOP-20)
8. Operating junction temperature range: -40°C to 150°C

Applications:

1. Portable devices: Powering mobile phones, tablets, and wearable devices
2. Power supplies: Converting higher voltage batteries to lower voltages for various electronic devices
3. LED lighting: Driving high-brightness LEDs with efficient power conversion
4. Industrial control systems: Providing regulated power to microcontrollers and other sensitive components
5. Medical equipment: Ensuring stable and reliable power supply for critical applications
6. Telecommunication systems: Powering base stations and other communication equipment
7. Automotive electronics: Converting 12V or 24V automotive battery voltage to lower voltages for various electronic systems

The L7987LTR is a versatile and efficient step-down regulator that can be used in a wide range of applications requiring a stable and regulated power supply. Its compact size, high efficiency, and wide input voltage range make it an ideal choice for both portable and industrial applications.