Analog Devices LTC7130 | Demoboard DC2341A

Description

Demonstration circuit 2341A is a high efficiency synchronousbuck DC/DC converter with 4.5V to 20V inputrange. It can supply 20A maximum load current at 1.5Voutput. The demo board features the LTC®7130 regulator.No external MOSFETs are required. It employs an LTCproprietary current sensing, current mode architecture,allowing the use of a very low DC resistance (DCR) powerinductor to maximize efficiency in high current applications.Differential output voltage sensing along with aprecision internal reference combine to offer accurateoutput regulation. The LTC7130 is housed in a 6.25mm× 7.5mm × 2.22mm 63-pin BGA package.The light load operation mode of the converter is determinedwith the MODE/PLLIN pin. Use the JP2 jumper toselect pulse-skipping mode (P.S.), Burst Mode® (BURST)or forced continuous mode (CCM) operation. The convertercan also be externally synchronized through the MODE/PLLIN pin (MODE/PLLIN terminal on the board; JP2: nojumper or BURST position). To shut down the converter,one simple way is to force the RUN pin below 1.1V (JP1:OFF). The power good output (PGOOD terminal) is lowwhen the output voltage is outside of the ±10% regulationwindow.The LTC7130 data sheet gives a complete description ofthe operation and application information. The data sheetmust be read in conjunction with this demo manual.

More information

• Datasheet
• IC product information