LTC3706EGN#PBF

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The LTC3706EGN#PBF by Linear Technology is an integrated high efficiency, low voltage step-up DC/DC converter housed in a thermally enhanced 7-pin MSOP package. The presence of an integrated power FET and autorange PWM controller makes the device ideal for wireless telecommunication, portable systems and other low voltage applications.

The LTC3706EGN#PBF is well-suited for generating output voltages up to 5.5V from a single 3V to 5V input, while dissipating only 400mW of power. The switch current limit from 0.5A to 1.5A is adjustable. An integrated low-side synchronous or diode rectifier provides output current-mode control for light-load efficiency and fast transient response.

The LTC3706EGN#PBF is a single-channel DC/DC converter featuring a wide input voltage range of 0.7V to 5.5V, making it especially suitable for battery-powered systems. Additionally, the device can synchronously switch up to 1.5A with programmable switch current limit and can also be used for system power up and/or circuit protection. The integrated N-channel power FET gives the device ultra-low quiescent current and voltage ripple, which enables it to easily meet the stringent efficiency requirements of many battery-powered systems.

As an integrated solution, the LTC3706EGN#PBF combines a high efficiency step-up DC/DC converter with an autorange PWM controller. The device features an internal voltage regulator, which can be adjusted to accurately set the output voltage. The output voltage is monitored to prevent over-voltage or reverse-polarity faults.

The LTC3706EGN#PBF also features an integrated frequency compensation network to minimize the number of external components required. This feature simplifies the circuit design and reduces the component count, thereby reducing the cost and complexity of the overall system.

The device also includes an energy saving mode that is triggered by an internal voltage comparator. When the input voltage is lower than the Energy Saving Voltage (ESV) setting, the current mode controller switches off to conserve power.

The integrated low-side synchronous rectifier and a voltage doubler provides flexible power conversion and efficient power transfer from the input to the output. The device has a minimum operating current of 2.5V and features a wide input voltage range of 0.7V to 5.5V, making it suitable for low voltage applications.

The device is designed to meet the requirements of demanding applications such as wireless telecommunication, portable systems and other low voltage applications where high efficiency, wide input range and space conservation are major considerations.

In summary, the LTC3706EGN#PBF is ideally suited for DC/DC converters that meet the stringent efficiency requirements of low voltage applications. The integrated power FET, autorange PWM controller, integrated low-side synchronous/diode rectifier, energy saving mode and wide input voltage range make the LTC3706EGN#PBF an excellent solution for system power up and/or circuit protection, as well as for generating output voltages up to 5.5V from a single 3V to 5V input.

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