LTC1261LCS8-4#TRPBF

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LTC1261LCS8-4#TRPBF is an integrated circuit (IC) specifically designed for low-loss, high-frequency switching voltage regulation. It is an advanced, efficient switch technology that integrates three components into one package: a high-voltage power MOSFET, a pulse-width modulation (PWM) controller, and a low drop-out regulator with current limitation. This type of voltage regulator is most suitable for low-power applications. The LTC1261LCS8-4#TRPBF is designed for applications such as voltage conversion, residual voltage removal, and battery protection.

Application Field

The LTC1261LCS8-4#TRPBF is currently used in a variety of applications, such a battery-powered devices, advanced microprocessors, tablet PCs, and portable media players. This IC is also an ideal choice for telecom and PC applications, DC/DC regulation and power supplies, LED lighting, and automotive applications. With its high peak current capability and low current consumption, this product is suitable for replacing linear regulators and linear conversion circuits. Its improved switching speed brings high efficiency for applications with simple switch modes.

Working Principle

The LTC1261LCS8-4#TRPBF works on the principle of pulse-width modulation (PWM). The IC contains the necessary components for the PWM controller – a voltage reference, an error amplifier, a duty cycle circuit and an oscillator. When the power is applied, the voltage reference generates a fixed reference voltage which is compared to the output voltage in the error amplifier. The output of the error amplifier is then used to adjust the duty cycle of the oscillator which in turn drives the MOSFET. The duty cycle of the oscillator determines the output voltage through direct regulation.

The voltage regulator also features over-current and short-circuit protection. When the current limit is exceeded, the error amplifier output rapidly reduces the duty cycle of the oscillator. This reduces the output voltage, thus preventing over-current. Similarly, when a short-circuit is detected, the duty cycle is reduced to zero, removing the power to the MOSFET.

The LTC1261LCS8-4#TRPBF is a high-performance, integrated switching voltage regulator with high efficiency and low power consumption. It is suitable for a wide range of applications including battery-powered devices, advanced microprocessors, tablet PCs, and portable media players.

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