LTC3589IUJ-2#PBF

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PMIC - Power Management - Specialized

The LTC3589IUJ-2#PBF from Linear Technology is a high efficiency 3.2A step-down DC/DC converter for high performance applications. It is optimized for small form factor and minimal energy loss, providing integrated power in a compact package. The LTC3589IUJ-2#PBF is an ideal choice for high power density, high efficiency, and ultra-low quiescent current applications.

The device offers a wide operating temperature range, low input voltage operation, and high efficiency over a wide input voltage range. It is designed to reduce external component count and minimize power losses. It features true current-mode operation with seamless transition between quantized and valley current-mode control for optimal efficiency over load current and input voltage. The integrated logic and PGOOD pin provide system level monitoring and control.

The LTC3589IUJ-2#PBF is an easy-to-use, three-terminal device that provides a fixed 3.2A output current while operating from a wide 2.0V to 18V input voltage range. It also features output voltage sequencing, and current limiting capabilities along with two extended ENABLE pins and under voltage and thermal protection.

The LTC3589IUJ-2#PBF utilizes a unique current-mode architecture to ensure clean output waveforms and improved transient response. It also has a wide selection of startup current, output voltage range, and ripple cancellation filters for superior transient response. The device can be used in a variety of applications, including power supplies for digital media players, mobile phones, and PCs.

Working Principle

The LTC3589IUJ-2#PBF is a high performance, high efficiency, low quiescent current, step-down DC/DC converter with integrated features for system monitoring and control. The device utilizes an internal transconductance error amplifier that allows the device to operate over a wide current range and over a wide input voltage range while maintaining output voltage accuracy.

The integrated MOSFETs of the LTC3589IUJ-2#PBF are optimized for low performance losses, allowing the device to provide high efficiency over a wide input voltage range. It provides true current-mode control with seamless transition between quantized and valley current-mode control. It also has integrated logic, enabling user settings of startup current and output voltage range, and providing system level monitoring and control.

The LTC3589IUJ-2#PBF features an adjustable PGOOD output pin, which can be configured to monitor the output voltage and provide an early warning of any output voltage drop below the specified threshold. The device also features under voltage and thermal protection to ensure safe operation of the device.

Application Fields

The LTC3589IUJ-2#PBF from Linear Technology is optimized for small form factor and minimal energy loss, providing integrated power in a compact package. This makes it an ideal solution for high power density, high efficiency, and ultra-low quiescent current applications such as powering digital media players, mobile phones, PCs, as well as automotive, industrial, and power management. Industrial applications that require higher power density, increased efficiency and reliability, such as motor drives, solar panels, and HVAC systems, will also benefit from the device.

The high performance, high efficiency, low quiescent current, and versatile features of the LTC3589IUJ-2#PBF make it an ideal choice for a variety of applications. With its easy-to-use, three-terminal device and wide operating temperature range, it can be used to reduce external component count and minimize power losses, allowing designers to achieve higher density and energy savings in power applications.

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