LTC1522CS8#PBF

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The LTC1522CS8#PBF is a 2A current mode monolithic step down switching regulator featuring a wide input voltage range of 4.7V to 45V. It utilizes an internal high gain error amplifier, an external RSC feedback compensation network, and an internal soft-start circuit. The switching regulator is capable of managing up to 2A output with efficiency up to 95%. Its tiny size of 8-pin MSOP and low noise switching makes it a great fit for low power applications requiring high efficiency.

The LTC1522CS8#PBF is typically used in battery powered systems, computer peripherals, test equipment, industrial controllers, and more. Powered by its 8-pin MSOP package, this regulator provides the functions necessary for a complete current mode DC/DC converter, saving board space and improving reliability. It also includes many features like soft start circuitry, internal gate-drive circuitry and an uncommitted PWM comparator for external use.

Application Fields

The LTC1522CS8#PBF is a versatile step down DC/DC converter that can be applied to a wide range of applications. This regulator can supply up to 2A to a load and provide precise voltage regulation, over-current protection, and thermal protection. Its wide input voltage range (4.7V to 45V) allows it to be used in both high input voltage and low input voltage applications. The switching frequency is adjustable via an external resistor and can be set up to 1.5MHz.

Working Principle

The working principle of the LTC1522CS8#PBF is based on the principle of switch mode operation. When the input voltage is greater than the output voltage, the power switch turns on and charges the inductor. When the input voltage is less than the output voltage, the power switch turns off and the energy stored in the inductor is transferred to the load. This process is repeated to maintain a constant regulated output voltage.

The LTC1522CS8#PBF incorporates an internal high gain error amplifier, a wide range resistor divider network on the feedback terminal and an external resistor to set the operating frequency. The operating frequency is varied by the external resistor and can be set up to 1.5MHz. The device also features an uncommitted PWM comparator, an internal soft start circuit, an internal current limit and an enable pin for power up/down. The enable pin control the output voltage with a logic level low (0V) turn off voltage or high (3V3) turn on voltage.

In addition to the features mentioned above, the LTC1522CS8#PBF also offers protection against over-temperature and over-voltage protection. The device offers a full load operating range from 0V to 45V and is rated for a maximum operating temperature of 125°C.

The LTC1522CS8#PBF is an ideal DC/DC converter for applications that require a high efficiency, low profile, and cost effective power solution. With its wide range of features, the device can be used in a variety of applications, such as battery powered systems, computer peripherals, test equipment, industrial controllers, and more.

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