LT8495HFE#TRPBF

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The LT8495HFE#TRPBF is a high-efficiency DC/DC synchronous b uck switched regulator from Linear Technology. The device is specifically designed for use in portable and handheld computing applications, where high efficiency, small footprint, and features designed for fast output transient times are required. This regulator operates from an input voltage range of 2.2V to 6V and can generate an output voltage range of 0.5V to VIN. The maximum output current of the device is 5A and the output voltage tolerance is ± 1.5%. Furthermore, it can operate at a switching frequency from 500kHz up to 3MHz, thus allowing for further efficiency gains. With a typical quiescent current of 7mA and up to 95% efficiency achieved at light loads, the LT8495HFE#TRPBF is an ideal solution for space-constrained applications.

The LT8495HFE#TRPBF includes several features that enhance the performance of the device in portable and handheld computing applications. Features such as adaptive voltage positioning (AVP) and PCM Mode enable the device to maintain higher efficiency at light loads. The AVP feature operates as a single cycle-by-cycle line-tracking regulation of the output voltage, providing superior transient response and reducing voltage droops. PCM Mode eliminates switching transitions at light loads, thus optimizing efficiency and reducing switching losses. The device also includes a current-mode control, allowing the user to adjust the switching frequency for a compromise between output voltage ripple and efficiency.

The LT8495HFE#TRPBF also features on-chip protection features designed to protect the device from excessive current, overtemperature, and undervoltage. The integrated overcurrent protection (OCP) features a cycle-by-cycle current limit protection and adjustable OCP threshold. The overtemperature protection (OTP) feature monitors the die temperature and shuts off the device if the threshold is exceeded. The undervoltage protection (UVP) feature monitors the input voltage and shuts off the device if the input voltage drops below the UVLO threshold. In addition, the device includes a soft-start feature that reduces in-rush current during start-up.

In summary, the LT8495HFE#TRPBF is a high-performance DC/DC synchronous buck switched regulator designed for high efficiency and fast transient output times in portable and handheld computing applications. Its input voltage range is 2.2V to 6V and the output voltage range can be adjusted from 0.5V to VIN. Additionally, it includes several protection and control features that ensure reliable and safe operation of the device.

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