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LT8607HMSE#TRPBF application field and working principle

The LT8607HMSE#TRPBF is a synchronous step-down DC/DC controller with integrated FETs, designed for a wide range of applications including high current, point-of-load (POL) power supplies. This device features a voltage-mode control architechture which provides superior line and load transient performance with excellent control over output voltage ripple. It also features a wide 4.5V to 14V input voltage range, adjustable output voltage range of 0.6V to VIN and up to 10A of continuous output current. In addition, the LT8607HMSE#TRPBF offers an adjustable soft-start time and a user-selectable switching frequency up to 1.5MHz.

Applications

The LT8607HMSE#TRPBF is suitable for a wide range of POL applications, including server, storage, networking, and telecom systems. It is also well-suited for a variety of wide voltage range applications such as 48V telecom, 12V industrial, and battery-powered systems.

Features

• 4.5V to 14V input voltage range
• VOUT adjustable from 0.6V to VIN
• Up to 10A output current
• Integrated power MOSFETs
• Current-mode control
• Selectable switching frequency up to 1.5MHz
• Adjustable soft-start time

Description

The LT8607HMSE#TRPBF is a synchronous step-down DC/DC controller with integrated power FETs designed to provide a wide 4.5V to 14V input range, adjustable output voltage from 0.6V to VIN, and up to 10A of continuous output current. The device features voltage-mode control for excellent line and load transient performance and excellent control over output voltage ripple.

The device features an adjustable output voltage and user-selectable switching frequency up to 1.5MHz. It also features an adjustable soft-start time for smooth, controlled start-up. The device also features an internal under-voltage lock-out (UVLO) circuit, programmable frequency foldback, and a precision enable pin.

The device is available in a 14-pin, 3mm x 3mm QFN package with an extended temperature range of -40C to +125C.

Working Principle

The LT8607HMSE#TRPBF works on the principle of voltage-mode control, which provides excellent line and load transient performance and low output voltage ripple. The device is designed with an adjustable switching frequency up to 1.5MHz and it also has an adjustable soft-start time for smooth, controlled start-up. The device features an internal under-voltage lock-out (UVLO) circuit, programmable frequency foldback, and a precision enable pin for current mode control.

The device provides good line and load transient response, excellent control over output voltage ripple, and low output voltage variance across the various operating conditions. The device also provides a wide 4.5V to 14V input voltage range and adjustable output voltage from 0.6V to VIN with up to 10A of continuous output current.

Conclusion

The LT8607HMSE#TRPBF is a synchronous step-down DC/DC controller with integrated power FETs designed to provide a wide 4.5V to 14V input range, adjustable output voltage from 0.6V to VIN, and up to 10A of continuous output current. The device operates on the principle of voltage-mode control to provide excellent line and load transient response and low output voltage ripple. The device features adjustable switching frequency up to 1.5MHz, and adjustable soft-start time for smooth, controlled start-up. The device is available in a 14-pin, 3mm x 3mm QFN package with an extended temperature range of -40C to +125C.

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