Analog Devices LTC3866EUF | Demoboard DC1829A

Description

Demonstration circuit 1829A is a high efficiency, high density, synchronous buck converter with 4.5V to 14V input voltage range. It can supply a 30A maximum load current with a 1.5V output. This demo board utilizes theLTC®3866EUF, a feature-rich single phase synchronous buck controller with very low DCR current sensing capability, on-chip drivers and remote output voltage sensing. This board is setup with 0.32mΩ DCR inductor. The temperature compensation function guarantees accurate current limitover a wide temperature range with DCR sensing.

The LTC3866 is suitable for operation from an input voltage of 4.5V to 38V and output voltages up to 3.5V. It can provide high efficiency, high power density and versatile power solutions for telecom and datacom systems, industrial and medical instruments, along with DC power distributionsystems and computer systems. The LTC3866 is available in 24-pin 4mm × 4mm QFN and 24-lead FE packages.

To shut down the converter, set the RUN pin voltage below 1.2V (JP2: OFF). Use JP1 jumper to select Burst Mode® operation, pulse skipping mode or forced continuous mode operation at light load. Switching frequency is preset at about 400kHz, and it can be easily modified from 250kHz to 770kHz. Onboard dynamic circuit is also available for transient test. Please see LTC3866 data sheet for more detailed information.

More information

• Datasheet
• IC product information