PMIC - Voltage Regulators - Special Purpose

The LTC3107EDD#PBF is a low-power linear regulator from Linear Technology company. It is designed to provide a regulated supply voltage, up to 50V, from a single-cell Lithium-ion battery. It is suitable for applications requiring a small, lightweight, low-noise power source that is stable and efficient. The LTC3107EDD#PBF is also capable of providing output regulators for active loads and pulse-width-modulated outputs for driving multiple power-hungry loads simultaneously.

The LTC3107EDD#PBF features an input voltage range from 0.3V to 5.5V, a low operating current of 10.3mA, and an adjustable output voltage range of 0.3V to 50V. The device operates over an ambient temperature range of -40 °C to +85 °C.

Applications of LTC3107EDD#PBF

The LTC3107EDD#PBF is ideal for a wide range of applications, including energy harvesting, wireless sensor nodes, motor control, LED lighting and medical equipment. It is also suitable for powering low-power microcontrollers as well as for providing a regulated supply for linear I/O and analog circuits.

The LTC3107EDD#PBF can also be used to supply multiple outputs from a single-cell battery, and can serve as a DC/DC converter for supplying battery power to thermoelectric generators. It is suitable for use in both indoor and outdoor environments, and is a cost-effective solution for designing low-power products that can withstand extreme conditions.

Working Principle of LTC3107EDD#PBF

The LTC3107EDD#PBF is a low dropout linear regulator comprising a power MOSFET and a pass transistor. This regulator provides a low-voltage differential output voltage by passing a current through the power MOSFET and pass transistor. The LTC3107EDD#PBF has an adjustable output voltage and is capable of supplying up to 50V in output. It has a maximum input voltage of 5.5V and an adjustable output voltage range of 0.3V to 50V.

The power MOSFET handles the bulk of the load current, whereas the pass transistor is responsible for controlling the output voltage. The pass transistor is connected between the input and output port in order to avoid saturation of the power MOSFET. The pass transistor also helps to reduce on-resistance of the power MOSFET and provides a higher efficiency of the regulator.

The LTC3107EDD#PBF features an internal reference voltage of 0.6V, which sets the output voltage level. This reference voltage is adjustable using an external resistor network. The adjustment range is 0.3V to 50V, allowing the device to be used in a variety of applications.

The LTC3107EDD#PBF is available in a range of packages, including an 8-pin MSOP, an 8-pin SOIC, an 8-pin DFN, a 14-pin TSSOP, and a 5-pin SOT23. These packages are designed to provide reliable operation even in harsh environmental conditions, such as temperatures up to 85 °C and high humidity.

Conclusion

The LTC3107EDD#PBF is a low-power, low-noise linear regulator from Linear Technology that provides an adjustable output voltage. It is suitable for low-power applications such as energy harvesting, wireless sensor nodes, motor control and LED lighting. The LTC3107EDD#PBF can also be used as a DC/DC converter for supplying battery power to thermoelectric generators. The device is characterized for operation over an ambient temperature range of -40 °C to +85 °C and is available in a variety of packages.