LT1371HVISW#TRPBF

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LT1371HVISW#TRPBF is a Low-Noise, High-PSRR, 10.5V Fixed/Adjustable 2A Single Output synchronous Buck DC/DC switching regulator and solutions. It is part of the DC DC Switching Regulators and Voltage Regulators, Microelectronics Peripheral products which belongs to Power Management IC (PMIC) category, the Field Effect Transistor (FET) buck switch generator which delivers up to 2A at output. The LT1371HVISW#TRPBF buck converter is designed to minimize noise, components count and allow high efficiency.

The LT1371HVISW#TRPBF output voltage is adjustable from Output Voltage (VOUT) of 0.8V to 10V, based on the settings of the external resistor divider. It can support wide input voltage range from from 2.25V to 10.5V, making it suitable for a variety of system designs. The LT1371HVISW#TRPBF typically consumes only 25µA of quiescent current when operating in the light-load condition. It delivers up to 2A of output current with a total switching frequency of 470KHz.

The LT1371HVISW#TRPBF have a power saving design featuring a low quiescent current operation, low output noise and high PSRR. The LT1371HVISW#TRPBF has low ripple, no audible audio noise, and low voltage drop over operational range. It implements a current mode architecture which allows it to be stable with a very wide range of output capacitors, making it ideal for high-efficiency applications which require fast transient response and very low output ripple voltage.

In addition, the LT1371HVISW#TRPBF comes with a Power Good feature to indicate when the regulator has output voltage regulated to within 1.25% of the desired voltage. With the adjustable output voltage, it can work across a wide range of system voltages. The LT1371HVISW#TRPBF is available in a wide variety of packages, including SO8, VSSOP16, and TSSOP20.

The LT1371HVISW#TRPBF application field involves using in automotive, industrial, and medical systems, as well as communications, computing, power management, and instrumentation applications where low output voltage noise, high efficiency and tight regulation are required. The LT1371HVISW#TRPBF can be used in battery-powered device applications, where a low q-current is required for maximum battery life.

The working principle of the LT1371HVISW#TRPBF is fairly simple and involve many distinct steps. First, the DC power supply sources the input voltage, which is then reduced through a series of switching cycles on the buck converter switch. This reduces the voltage to the output voltage of the device, based on the settings of the external feedback resistor divider. The output voltage is constantly monitored using a voltage comparator and voltage feedback circuit, which adjusts the duty cycle to the switch ensuring that the output voltage is constant. Any load variations on the output of the converter will cause the duty cycle to be adjusted to maintain a constant output voltage.

In conclusion, LT1371HVISW#TRPBF is an effective solution that combines various features like low noise, high PSRR and wide input voltage range, making it suitable for applications requiring low output voltage noise, high efficiency and tight regulation. Its power saving design and wide range of operating temperature, make the LT1371HVISW#TRPBF ideal for battery-powered device applications, where a low q-current is required for maximum battery life.

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