Analog Devices LTC7150S | Demoboard DC2411A

Beschreibung

Demonstration circuit 2411A is a high efficiency synchronousbuck regulator with a 3.1V to 20V input range. Itcan supply 20A maximum load current at 1.2V output.The demo board features the LTC®7150S regulator. Noexternal MOSFETs nor external current sense resistor arerequired. It uses a phase-lockable controlled on-time constant-frequency, current mode architecture, ideal for highstep-down ratio applications. The operating frequency isprogrammable from 400kHz to 3MHz with an externalresistor (R5). The LTC7150S is housed in a 6mm × 5mm× 1.3mm 42-Lead BGA package.The light load operation mode of the converter is determinedwith the Mode/Sync pin. Use the JP3 jumper toselect discontinuous mode (DCM), forced continuousmode (CCM), or to synchronize to an external clock.Multiple LTC7150S regulators can be paralleled for multiphaseoperation to provide more than 20A of current(JP2: 1-PH, for standard single phase operation). Toshut down the converter, one simple way is to forcethe RUN pin below 1.15V (JP1: OFF). The power goodoutput (PGOOD terminal) is low when the output voltageis outside of the ±7.5% regulation window.The LTC7150S data sheet gives a complete description ofthe operation and application information. The data sheetmust be read in conjunction with this demo manual.

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers