LTC3609IWKG#TRPBF

PMIC - Voltage Regulators - DC DC Switching Regulators

The LTC3609IWKG#TRPBF is an integrated DC to DC switching regulator from Linear Technology. It is designed to provide highly efficient, low noise and small size power conversion for a wide range of applications. The device utilizes a high performance voltage mode control topology and is capable of delivering a regulated output current of up to 2A (typical) without any external components. Its small footprint and its high level of integration makes it ideal for applications where space is at a premium.

Application Field

The LTC3609IWKG#TRPBF is ideal for applications in the automotive, telecommunications, and aerospace industries as well as in consumer and industrial applications. Its high level of integration makes it suitable for applications requiring a low power, low noise and small form factor solution. It can be used in a wide range of applications, including, cellular and cordless phones, portable medical equipment, automotive electronics, MP3 players, digital cameras, battery charging systems and instrumentation.

Working Principle

The LTC3609IWKG#TRPBF utilizes a high-performance voltage mode control topology, allowing it to provide a regulated output current of up to 2A (typical) without any external components. Internally, the output voltage is regulated by sensing the voltage at the output and adjusting the duty cycle of the switch accordingly. To provide optimum efficiency, the switching frequency of the device is automatically adjusted over the full load range. The device also features an input voltage range of 4.5V to 18V and programmable soft-start and current limit features. The device is protected against output overload, over-temperature, and reverse current assurance.

The device is equipped with a low shut-down current feature which allows it to remain in a disabled state while consuming a very low quiescent current. Additionally, the device features a power good pin, which falls below a set minimum output voltage, indicating to the user that the output voltage has dropped below the set level and that the system should be shut down.

The LTC3609IWKG#TRPBF is a highly integrated, efficient and reliable DC to DC switching regulator that makes it ideal for applications requiring low power, low noise and a small form factor.