IC-Hersteller Analog Devices

IC-Hersteller (96)

Analog Devices LTC3855EFE | Demoboard DC1617A-A

LTC3855EFE Dual Output Synchronous Buck Converter

Details

TopologieAbwärtswandler
Eingangsspannung4.5-26 V
Ausgang 12.5 V / 15 A
Ausgang 21.8 V / 15 A
IC-Revision2

Beschreibung

Demonstration circuit DC1617A is a dual output synchronous buck converter featuring the LTC®3855EFE in a high density, two sided drop-in layout with power components on the top and the control circuit on the bottom. The package style for the LTC3855EFE is a 38-lead TSSOP.The board comes in two assembly types. The –A assembly provides 2.5V/15A and 1.8V/15A from a 4.5V to 26V input.DCR inductor sensing is used to provide the highest efficiency.The current limit is NTC compensated to provide the minimal amount of variation over temperature. The –B assembly is a high power, 12V/6A and 5V/10A converterwith a 13V to 36V input. A sense resistor is used to provide a precise current limit.

Eigenschaften

  • Remote sensing for VOUT2 on the –A assembly. On the
  • –B assembly, the diffamp is bypassed since VOUT2 is >3.3V.
  • Optional resistors for single output dual phase operation.
  • PLLIN pin for synchronization to an external clock which can be used in conjunction with PHASMD pin and CLKOUT pin for up to 12-phase operation.
  • Selectable light load operating modes of pulse skip,Burst Mode® operation or FCM.
  • TRACK/SS pins for external rail tracking.
  • RUN pins and PGOOD pins for each phase.

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Muster
744355090SPEC
8 Dateien WE-HCI SMT-Hochstrominduktivität 0.9 36 11 28 1.6 72 WE-PERM
Artikel Nr. Daten­blatt Simu­lation
744355090SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Muster