LT3991IMSE#PBF

Voltage - Output (Min/Fixed):	1.19V
Base Part Number:	LT3991
Supplier Device Package:	10-MSOP-EP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz ~ 2MHz
Current - Output:	1.2A
Voltage - Output (Max):	30V
Series:	--
Voltage - Input (Max):	55V
Voltage - Input (Min):	4.3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

LT3991IMSE#PBF (also known as LT3991I) is an advanced, high performance integrated circuit specifically designed for DC/DC switching regulator applications. It is produced by leading company Linear Technology, who has been providing innovation in power management solutions since 1985. It has an extremely compact form factor, with the complete kit measuring just 4mm x 5mm. This makes it ideal for small-scale projects and applications where board space is at a premium.The LT3991I is an ideal solution for high power applications such as power amplifiers, lighting systems and laptop power supplies. It is also an excellent choice for portable and battery-powered systems as it has a very low quiescent current and can operate efficiently with input voltages ranging from 2V to 28V.

Application fields and Working Principle

The LT3991I is primarily used in the area of DC-DC switching regulators. It is suitable for a range of applications, such as powering high-end processors, FPGAs and GPUs, as well as LED lighting systems, portable devices and automotive electronics. The LT3991I can also be used as master/slave configuration, which makes it suitable for synchronizing multiple regulators, thus providing greater flexibility and efficiency.The LT3991I is designed according to the hysteretic control principle which is based on the idea that the output voltage remains constant, even when the input voltage changes. In this way, the LT3991I is able to maintain accurate regulation of the output voltage over a wide range of operating conditions. This makes the device highly efficient and stable, even under rapidly changing input voltage conditions.Its wide input voltage range and excellent regulation accuracy make the LT3991I an ideal choice for DC/DC switching regulator applications. It can also be used in a wide range of other applications such as controlling relays and solenoids, as well as powering DC motors and transformer cores.

Features and Benefits

The LT3991I is one of the most advanced and powerful switching regulators available on the market. It has a wide input voltage range (2V-28V) and a very low quiescent current, making it an ideal choice for battery-powered systems. It also has a very high efficiency rating, up to 95%, which helps to reduce the power consumed by the system.The LT3991I also has several onboard features which make it very user friendly. These include two resistor adjustable current limit settings, as well as a low-ripple-mode for noise-critical applications. The device also offers a wide range of protections, such as short circuit protection, thermal shutdown and under-voltage lockout. This makes it very reliable and safe to use.

Conclusion

Overall, the LT3991I is an excellent choice for DC-DC switching regulator applications. It has a wide input voltage range, low quiescent current and very high efficiency, making it ideal for a range of applications. It also offers several onboard features for user-friendliness, as well as protection features for reliability. All these factors make the LT3991I a great choice for your next power management project.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description