Silicontent Technology

SCT2433
Demoboard EV2433-B-01A

3.8V-40V Vin, 3.5A High Efficiency Synchronous Step-down DCDC Converter

Topology: Buck
Input Voltage (min.): 3.80 V
Input Voltage (max.): 40.00 V
Output 1: 3.30 V / 3.500 A

Original publication on 2019-04-22, revision 0.9

Description

3.8V-40V Vin, 3.5A High Efficiency Synchronous Step-down DCDC Converter Evaluation Board.The EV2430-B-03A Evaluation Board is designed to demonstrate the capabilities of SCT2430, SCT2431, SCT2432 and SCT2439, high efficiency fully integrated synchronous step-down DCDC converter supporting up to 3.5A continuous output current from an input source from 3.8V to 40V. The SCT2430 SCT2432 and SCT2439 offer adjustable switching frequency ranging from 100kHz to 2.2MHz with internal 4ms soft-start, which provides flexibility to optimize either efficiency or external component size. The SCT2431 features adjustable soft-start with fixed 570KHz switching frequency. Both devices are available in an easy-soldering 8-pin ESOP package.

Characteristics

  • Wide Input Range: 3.8V-40V
  • Up to 3.5A Continuous Output Current
  • 0.8V ±1%Feedback Reference Voltage
  • Integrated 80mΩ High-Side Rdson and 50mΩ Low-Side Rdson Power MOSFETs
  • 25uA Low Quiescent Current with Pulse Skipping Mode PSM at Light Load
  • 100KHz to 2.2MHz Adjustable Frequency and External Clock Synchronization (SCT2430, SCT2432, SCT2439)
  • Adjustable Soft-start (SCT2431, SCT2432)
  • Low Dropout Mode Operation
  • Derivable Inverting Voltage Regulator
  • EMI Reduction with Frequency Spread Spectrum FSS
  • Over-voltage and Over Temperature Protection
  • Available in an ESOP-8 Package

Products

  Order Code SPEC Product series L
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Material Version Pins Reihen Gender Typ Verpackung C
(µF)
Tol. C VR
(V (DC))
Bauform H
(mm)
DF
(%)
Keramiktyp Technische Artikelnummer Betriebstemperatur RISO
(GΩ)
Endurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
P
(mm)
Ø D
(mm)
L
(mm)
Samples
744325550 PDF WE-HCI SMT Flat Wire High Current Inductor 5.5 10 4.3 12 10.3 30 Superflux SMT
61300311121 PDF WR-PHD 2.54 mm THT Pin Header 3 3 Single Pin Header Straight Bag
885012109011 PDF WCAP-CSGP MLCCs 16 V(DC) 47 ±20% 16 1210 2.5 10 X5R Class II X5R1210476M016DFCT10000
885012206059 PDF WCAP-CSGP MLCCs 25 V(DC) 1 ±10% 25 0603 0.8 3.5 X7R Class II X7R0603102K025DFCT10000
885012206071 PDF WCAP-CSGP MLCCs 25 V(DC) 100 ±10% 25 0603 0.8 3.5 X7R Class II X7R0603104K025DFCT10000 -55 °C up to +125 °C 5
860040575007 PDF WCAP-ATUL Aluminum Electrolytic Capacitors 220 35 12 ATDF125221M035DSPA9G000 -40 °C up to +105 °C 7000 1060 77 5 10 12.5
860040775006 PDF WCAP-ATUL Aluminum Electrolytic Capacitors 100 63 9 ATDF125101M063DSPA9G000 -40 °C up to +105 °C 7000 640 63 5 10 12.5
885012206095 PDF WCAP-CSGP MLCCs 50 V(DC) 100 ±10% 50 0603 0.8 3 X7R Class II X7R0603104K050DFCT10000
885012206077 PDF WCAP-CSGP MLCCs 50 V(DC) 100 ±10% 50 0603 0.8 2.5 X7R Class II X7R0603101K050DFCT10000
885012209048 PDF WCAP-CSGP MLCCs 50 V(DC) 4.7 ±10% 50 1210 2.5 5 X7R Class II X7R1210475K050DFCT10000