LTC3025EDC-2#TRMPBF

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The LTC3025EDC-2#TRMPBF is a low power, high performance, low noise, current limited and short-circuit protected linear regulator device. It is an integrated part of the PMIC (Power Management Integrated Circuit) family and specifically of the Voltage Regulators series - Linear.

The LTC3025EDC-2#TRMPBF is suitable for a wide range of applications such as cellular phones, handheld computers, battery-powered products, and various other portable products. It can be used for point-of-load regulation needs, high speed load stepping and low noise conversion.

The main feature of the LTC3025EDC-2#TRMPBF is its low dropout, meaning it can regulate a wide input voltage range without variability. It offers a 5μA quiescent current maximum and a wide input voltage range of 2.5V to 11V. The LTC3025EDC-2#TRMPBF has a range of adjustable and fixed output voltages from 0.8V to 4V, with an output current capability up to 225mA.

The regulator also includes current limiting, thermal protection, reverse-battery protection and other properties that add value and robustness. The current limitation and temperature protection prevent any overload and damage to the device and its circuit. The reverse-battery protection ensures the output voltage will remain at zero when the battery is reversed.

The working principle of the LTC3025EDC-2#TRMPBF follows basic linear regulator design theory. The device includes a voltage reference, error amplifiers and control circuitry. The output voltage is controlled by the setting of an external resistor divider, which sets the reference voltage. The reference voltage is compared to the feedback voltage from the output. The power MOSFET switch is turned on and off to regulate the output voltage.

When the output voltage reaches the reference voltage, the error amplifier signals the control circuit to turn off the power MOSFET switch, resulting in a reduced voltage and current delivered to the load. This cycle is repeated until the output voltage is stable. The current limiting circuit operates to prevent over current problems and protect both the device and the load from any damage.

For applications that require extra features, such shut-down, fault detection and various watchdog functions, the LTC3025EDC-2#TRMPBF is also available in an extended version – the LTC3025EDC-2-L. It also provides a low noise analog power control, which can be used for applications that demand low noise and high speed adjustments.

The LTC3025EDC-2#TRMPBF is a versatile, low power, compact and low noise integrated part that uses a linear regulator design, ideal for a wide range of portable device applications. Its wide input voltage range, small package, low dropout voltage, current limiting and thermal protection characteristics, makes it suitable for protecting the device and its associated circuitry when subject to extreme conditions. All this makes it an excellent choice for many types of applications.

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