Texas Instruments

LM3644YFFR  

External/Internal LED Drivers

The LM3644YFFR is a high-efficiency synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide a stable output voltage from a wide range of input voltages, making it suitable for a variety of applications.

Description:

The LM3644YFFR is a highly integrated, high-efficiency synchronous step-down regulator that can operate from an input voltage range of 4.5V to 40V. It features a compact footprint and is available in a thermally enhanced 16-pin 3mm x 3mm QFN package.

Features:

1. Wide input voltage range: 4.5V to 40V
2. Synchronous rectification for high efficiency
3. Thermally enhanced 16-pin 3mm x 3mm QFN package
4. High output current capability
5. Low quiescent current: 3.5uA
6. Programmable soft-start
7. Over-current protection
8. Over-temperature protection
9. Output voltage tracking
10. Spread spectrum frequency modulation for reduced EMI

Applications:

1. Portable devices: smartphones, tablets, and laptops
2. Power banks and battery chargers
3. LED lighting
4. Industrial and automotive systems
5. Medical devices
6. Telecommunication equipment

The LM3644YFFR is a versatile and efficient step-down regulator that can be used in a wide range of applications where a stable output voltage is required from a varying input voltage. Its high efficiency, low quiescent current, and thermally enhanced package make it an ideal choice for portable and battery-powered devices.

LM3644YFFR Documents

Download datasheets and manufacturer documentation for LM3644YFFR

PCN Assembly/Origin :

Mult Devices 25/Mar/2019      

Datasheets :

LM3644 Datasheet      

Design Resources :

Lighting Product Selector      

HTML Datasheet :

LM3644 Datasheet