LTC3388IMSE-3#TRPBF

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The LTC3388IMSE-3#TRPBF voltage regulator contains DC-DC switching regulators and is a supplemented power management integrated circuit (PMIC). The device helps in providing power management solutions to mobile and portable devices. The device supports bidirectional current flow, high efficiency step-down regulator, and power modeling capabilities.

Features

• Supplied 4V to 45V input voltage
• External synchronous MOSFET regulation
• Output voltage adjustable from 0.9V to 18V
• Dual output step-down regulators
• Integrated Li-Ion/Li-polymer battery charger
• Integrated bidirectional current flow support
• Wide range of output voltage options
• Programmable output current limit
• Programmable input power-on-time delay
• Power-on-reset (POR) outputs

Applications

• Portable devices and wearables
• Mobile phones and tablets
• Portable media players
• Portable gaming systems

Working Principle

The LTC3388IMSE-3#TRPBF voltage regulator uses DC-DC switching regulators to step-down the input voltage. The device has a wide input voltage range of 4V to 45V, allowing it to be compatible with a variety of sources. The device contains an integrated Li-Ion/Li-polymer battery charger and a bidirectional current flow support. The device can be programmed to provide an adjustable output voltage ranging from 0.9V to 18V.

The device has a programmable output current limit that allows it to control the maximum amount of current supplied by the regulator. It also has an integrated power-on-time delay generator that is used to control the power-on sequence of components in the circuit. The device has a Power-on-reset (POR) signal that is used to indicate when the device is ready to operate, and when the device has been reset.

The LTC3388IMSE-3#TRPBF voltage regulator also uses synchronous rectification to increase the efficiency of the device. Synchronous rectification helps reduce power losses due to conduction and switch-on losses. The device has a built-in thermal protection circuit that will shut the device down when it exceeds a certain temperature. The device also has low power-on reset voltage and high accuracy voltage reference.

Conclusion

The LTC3388IMSE-3#TRPBF voltage regulator is an integrated power management IC that helps in providing efficient power solutions in mobile and portable devices. The device has wide input voltage range, adjustable output voltage, programmable output current limit, integrated Li-Ion/Li-polymer battery charger, power-on-time delay, and Power-on-reset signal. The device also uses synchronous rectification to reduce the power losses and has protection circuits to protect the device against excessive temperatures and inaccurate voltages.

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