STMicroelectronics

L9781TR

The L9781TR is a high-performance step-down (buck) switching regulator from STMicroelectronics. It is designed to provide a stable and efficient output voltage from a higher input voltage source. The regulator is available in a compact thermally enhanced TSSOP-16 package, making it suitable for a wide range of applications.

Description:

The L9781TR is a synchronous step-down switching regulator that can operate from an input voltage range of 4.5V to 38V. It has a wide output voltage range of 0.8V to 38V and can deliver an output current of up to 2A. The regulator features a high efficiency of up to 93% and a low quiescent current of 35µA in normal operation mode.

Features:

1. Wide input voltage range: 4.5V to 38V
2. Wide output voltage range: 0.8V to 38V
3. High efficiency: up to 93%
4. Low quiescent current: 35µA in normal operation mode
5. Compact TSSOP-16 package
6. Synchronous rectification for improved efficiency
7. Over-current protection (OCP)
8. Over-voltage protection (OVP)
9. Thermal shutdown protection
10. Programmable soft-start
11. External compensation pin for easy optimization

Applications:

The L9781TR is suitable for a wide range of applications that require efficient and stable voltage regulation. Some of the key applications include:

1. Portable devices: smartphones, tablets, and wearable devices
2. Power banks and battery chargers
3. LED lighting systems
4. Industrial control systems
5. Medical equipment
6. IoT devices and smart home applications
7. Automotive electronics
8. Telecommunication equipment

The L9781TR's high efficiency, wide input and output voltage range, and compact package make it an ideal choice for designers looking for a reliable and efficient step-down regulator for their applications.