LTC3612IUDC#TRPBF

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LTC3612IUDC#TRPBF Application Field and Working Principle

The LTC3612IUDC#TRPBF is a low voltage DC-DC synchronous step-down switching regulator that provides two independent regulated outputs. It is a 2-phase, 2-switch design capable of providing up to 20A of load current from each phase. The output voltage is adjustable from 0.6V up to 6.5V, and can be programmed using external resistors or an external voltage (Vout1 and Vout2).

The core of the LTC3612IUDC#TRPBF is its integrated power stage, which includes two independent high-frequency-capable synchronous step-down switching regulators. These regulators use high-frequency constant frequency, synchronous rectification, current-mode control to deliver excellent AC performance and good efficiency, making the LTC3612IUDC#TRPBF ideal for demanding applications such as point-of-load (POL) regulation, single-board computers, HDDs, RAID systems, telecom/network systems, and more.

Application Field

The LTC3612IUDC#TRPBF is a complete DC-DC synchronous step-down switching regulator that integrates two independent high-frequency, low-noise power stages capable of providing up to 10A of continuous load current per phase. The integrated enclosures provide the user with all the necessary power supply components, including inductors, capacitors and MOSFETs in one small package.

The LTC3612IUDC#TRPBF is designed to replace larger and costlier discrete switching regulator designs and to provide simpler and more efficient power solutions. It is ideal for demanding applications such as point-of-load (POL) regulation, single board computers, HDDs, RAID systems, telecom/network devices and more. With an adjustable output range from 0.6V to 6.5V, it is a good choice for devices that require low-voltage, high current power.

Working Principle

The LTC3612IUDC#TRPBF features two independent synchronous step-down switching regulators. The regulators use a high-frequency, current-mode control topology that operates with a constant frequency. The integrated circuit (IC) uses internal synchronous rectification that is turned on/off at a higher frequency than the external synchronous MOSFETs to minimize the switching losses. The IC also features thermal shutdown protection, adjustable soft-start and programmable frequency. It includes a low ripple, low noise integrated switching power stage using discrete MOSFETs.

Once the power supply has been set up to produce the desired output voltage, the internal synchronous rectification is turned on, allowing for a fast and efficient current transfer from the inductor to the output capacitor. When the load current is high, the boost MOSFETs start to switch and pull current from the inductor. The current then goes through the synchronous rectifier and is directed to the output capacitor. The output voltage is regulated by controlling the duty cycle of the power switches. The power stage is optimized for high efficiency and can be configured to fit different output voltages, load ranges and operating frequencies.

The LTC3612IUDC#TRPBF enables the user to adjust its output voltage through the use of external resistors or an external voltage. It also offers a wide range of programmable features such as soft-start, programmable frequency, adjustable output voltage and amplifier/error amplifier modes to optimize design flexibility. Additionally, the LTC3612IUDC#TRPBF offers a low standby current, and provides up to 10A of continuous output current for each phase.

Conclusion

The LTC3612IUDC#TRPBF is a high-performance, low voltage DC-DC synchronous step-down switching regulator that features two independent power stages capable of providing up to 10A of continuous load current per phase. Its integrated enclosures allow for easy implementation while providing excellent AC performance and good efficiency. With adjustable output ranging from 0.6V to 6.5V, the LTC3612IUDC#TRPBF is ideal for applications such as point-of-load (POL) regulation, single board computers, HDDs, RAID systems, telecom/network devices and more.

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