LTC2919CDDB-2.5#TRPBF

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The LTC2919CDDB-2.5#TRPBF is an advanced power management IC (PMIC) from Linear Technology Corporation. It is a multi-function device that combines a high-quality voltage supervisor, a programmable low-power sequencer, and a programmable high-power sequencer. The LTC2919CDDB-2.5#TRPBF is optimized for controlling power-up sequencing and sequencing between the various efficient power states in battery-powered applications. The device is capable of delivering up to 3A of continuous current and is designed to work efficiently with any large current sources, such as battery cells or DC-DC converters.

Features

• 3A current sink and source capability
• Low quiescent current: 3µA
• Lead-free and halogen-free
• Wide operating range: from 1.8V to 5.5V
• Programmable rising- and falling-edge delays
• External power-up reset capability
• Voltage supervisor for low supply conditions
• Programmable forcing input for inverting signals
• Programmable signal source for logic levels
• Analog signal multiplexing

Applications

The LTC2919CDDB-2.5#TRPBF is ideally suited for a wide range of applications. This includes battery-powered products where power sequencing is needed, such as portable computers or mobile phones. The device can also be used in automotive or industrial applications, where there is a need for power management or reset control. Other applications include unusual voltage monitoring, such as for large bus systems or where a single battery source is used for powering multiple loads.

Working Principle

The LTC2919CDDB-2.5#TRPBF is a multi-functional PMIC that combines several features, including a high-quality voltage supervisor. This voltage supervisor is designed to monitor the voltage levels of any system it is connected to and to alert the host system whenever the voltage drops below or rises above a specified threshold. This alert can be used to trigger an automated sequence when the voltage levels are out of acceptable limits. Additionally, the device can be used to enforce a power-up and power-down sequence by programming the rising- and falling-edge delays. Lastly, the device can also be used to drive multiple analog signals, while providing a programmable forcing input to invert the signals as needed.

Conclusion

The LTC2919CDDB-2.5#TRPBF is an advanced PMIC from Linear Technology Corporation that combines several important features. This includes a voltage supervisor, a programmable low-power sequencer, and a programmable high-power sequencer. The device is capable of delivering up to 3A of continuous current and is ideal for powering multiple low-power systems. Additionally, the device is capable of enforcing a power-up and power-down sequence, as well as driving multiple analog signals. The LTC2919CDDB-2.5#TRPBF is perfect for applications in portable computers and mobile phones, as well as automotive and industrial applications.

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