LTC3111HMSE#PBF

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The LTC3111HMSE#PBF is a Low Voltage Synchronous Boost Converter from Linear Technology. It is an integrated PWM switching regulator, complete with pulse width modulation (PWM) and power switch, designed to maximize the efficiency of Step-up DC-DC converters with low input voltage sources. This product is ideal for applications such as battery-powered biomedical instruments, and general-purpose industrial and consumer applications such as barcode scanners, security and monitoring systems, industrial controls and medical electronics.

The product is created to deliver higher current operation and operate at higher switching frequencies. It can operate in Pulse-Skipping Mode (PSM) and Burst Mode which allows it to support very low input voltage of 1V and higher load currents with an efficiency of 95%. This device features a low start-up current, low shutdown current and an integrated Power-On-Reset circuit which makes it ideal for use in portable applications.

The key features of the LTC3111HMSE#PBF Low Voltage Synchronous Boost Converter are:

• Switch current - 0.62A
• Input voltage: 1V to 16V
• Output voltage:2.3V to 12V
• Operating frequency – 1MHz to 5MHz
• Switching Losses – 7mW
• Pulse-skipping and Burst Mode operation
• External shutdown control
• Power-on reset circuit
• Low start up current
• Low shutdown current

The LTC3111HMSE#PBF is a highly efficient, low voltage synchronous boost converter with pulse-skipping and Burst Mode operation. It is ideal for applications requiring low input voltage of 1V and higher load currents. It is also suitable for applications where the output voltage is required to be much greater than the input voltage due to the integrated synchronous switching operation.

The device features an internal power switch, current limit, and soft start eliminating external components. It also has an internal shutdown control circuitry and an integrated Power-On-Reset circuit which makes it suitable for use in various portable applications.

The working principle of the LTC3111HMSE#PBF is based on its synchronous buck-boost configuration. When the switch is closed, power is transferred from the source to the inductor and then to the output capacitor. At the same time, the current passing through the inductor increases. When the switch is opened the inductors current is stored in the output capacitor and is used to provide the necessary power. The synchronous operation of the integrated power switch with the inductor allows for high efficiency and low voltage drop across the inductor.

The LTC3111HMSE#PBF is a high-efficiency synchronous 8-V to 16-V… 1V to 12V Low Voltage Synchronous Boost Converter suitable for a wide range of applications such as consumer electronics, industrial controls, and medical electronics. It is capable of operating from 1V to 16V input voltage range and deliver an output voltage of 2.3V to 12V with an efficiency of 95%. It is also compatible with Pulse-skipping and Burst Mode operation and features an integrated Power-On-Reset circuit which makes it suitable for use in portable applications as well.

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