LT1617ES5#TRMPBF

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LT1617ES5#TRMPBF is a low power, low noise DC-DC switching regulator. It features a wide input voltage range, high efficiency operation, low output current ripple, adjustable output voltage, and a low profile package. It is designed to provide regulated output voltages ranging from 0.8V to 5V and up to 3A of output current. The device is extremely reliable, with a robust design and no external components required. The LT1617ES5#TRMPBF can be used in a variety of applications, such as battery-powered consumer electronics, cellular communication, portable medical devices, and industrial equipment.

Application Field

The LT1617ES5#TRMPBF is suitable for product development in numerous industries and applications, including consumer electronics, cell phones and handsets, portables, communications systems, portable medical equipment, consumer goods, and HVAC applications. It is ideal for applications that require a robust power supply design with high efficiency. The device offers excellent line and load regulation, low noise, adjustable output voltage, and an extended input voltage range.

The LT1617ES5#TRMPBF is a switching regulator with a high efficiency and low power losses. It has a wide input voltage range, low output current ripple and low output voltage regulation which makes it suitable for use in small, portable applications such as mobile phones and other handheld devices. It can be used in conjunction with batteries or other power sources with output voltages ranging from 0.8V to 5V and up to 3A of output current.

The switching regulator supports a wide input range, up to 60V, providing the flexibility of powering a wide variety of applications. Its fixed 3.3V or adjustable output voltage enables an easy design approach for battery-operated applications, enabling higher power density and longer runtime. Its adjustable soft-start feature helps reduce inrush currents and stress on the power supply components.

Working Principle

The LT1617ES5#TRMPBF is a pulse width modulation (PWM) switching regulator, implemented using PWM control with a high switching frequency. It consists of a driver stage, an oscillator, feedback loop, and control circuit. The driver stage consists of a MOSFET and a gate driver, which are responsible for generating the pulses to the MOSFET. The oscillator generates a frequency input to the PWM controller, which in turn controls the duty cycle of the pulses and output voltage of the regulator.

The feedback loop ensures that the output voltage is regulated and not affected by changes in load or line voltage. It consists of an error amplifier, a divider network and a comparator. The error amplifier monitors the output voltage, compares it with the reference voltage, and produces an output voltage which is proportional to the small difference between the two voltages. This output is then used by the comparator to adjust the duty cycle of the pulses to the MOSFET to maintain the desired output voltage.

The control circuit is responsible for controlling the operation of the regulator, and it consists of a PWM comparator and voltage reference. The PWM comparator compares the output voltage to the voltage reference voltage and produces an output which is sent to the oscillator and driver stages to control the duty cycle of the pulses. Depending on the application, the LT1617ES5#TRMPBF can be configured as an adjustable voltage regulator or as a current-limited DC-DC converter.

Conclusion

The LT1617ES5#TRMPBF is a low power, low noise DC-DC switching regulator. It is ideal for high efficiency applications such as battery-powered consumer electronics, cellular communication, portable medical devices, and industrial equipment. The device offers excellent line and load regulation, low noise, adjustable output voltage, and an extended input voltage range. The high efficiency, low component count and extended input voltage range make the LT1617ES5#TRMPBF an ideal choice for a wide range of applications that require an efficient and reliable power supply.

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