LT1963ET#30PBF

Introduction

LT1963ET#30PBF is a 3-A low dropout linear regulator series that is safeguarded with current-limit protection and thermal shutdown. These feature-rich regulators are capable of supplying 3 A of output current with a maximum dropout voltage of 0.60 V at 3A. With its wide input voltage range of up to 10.5 V, LT1963ET#30PBF quarantees no-heat regulation of 5% over the entire -40°C to 125°C temperature range.

Application Field

LT1963ET#30PBF is suitable for many applications, such as digital SLR cameras, tablets, and baseband power systems, as well as for other data and communication systems. This low dropout regulator is a perfect solution for automotive applications, especially for displaying audio and navigation devices, as well as for other light-duty power systems.

In addition, leveraging its wide input voltage range, the LT1963ET#30PBF can be used in a variety of power management applications, such as computer motherboards, automotive audio/visual systems, smart phones, and industrial control systems.

Working Principle

LT1963ET#30PBF is based on a self-contained, low-dropout linear voltage regulator architecture. It offers 3A of continuous load current without requiring any heat sink or airflow. The internally implemented precision amplifier and error amplifier are configured in a feedback loop that maintains a regulated output voltage from variations in the input voltage or in the load current.

This feedback loop helps reduce output transients not only by quickly responding to input voltage changes, but also by sensing sudden output current variations. The regulator also features current-limit protection, which protects the device in the event the output current exceeds the rated limit.

The LT1963ET#30PBF utilizes an integrated N-channel power MOSFET switch to supply the output voltage. This N-channel MOSFET increases the dynamic load current capability and also reduces the quiescent current; thus, allowing the device to conserve energy while not in use. The device is capable of delivering high peak currents at low dropout voltage, which makes it an ideal solution for applications that require ultra-low quiescent current performance.

Conclusion

LT1963ET#30PBF is a 3-A low dropout linear voltage regulator that is capable of supplying 3A of output current with a maximum dropout voltage of 0.60 V at 3A. The device is suitable for many applications, such as digital SLR cameras, tablets, and baseband power systems, as well as for other data and communication systems. LT1963ET#30PBF also features internal current-limit protection and thermal shutdown features and is capable of reducing output transients by quickly responding to input voltage changes. Therefore, LT1963ET#30PBF is a perfect solution for automotive applications, computer motherboards, and other power management applications that require ultra-low quiescent current performance.