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reference designSCT2433 | Demoboard EV2433-B-01A

Silicontent Technology SCT2433 | Demoboard EV2433-B-01A

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

Overview

TopologyBuck Converter
Input voltage3.8-40 V
Output 13.3 V / 3.5 A
IC revision0.9

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.

Features

  • 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

Typical applications

  • Cigarette Lighter Adapters, USB Chargers
  • Industrial Distributed Power Supplies
  • Optical Communication and Networking System
  • Battery Pack Powered System - Cordless Power Tools, Cordless Home Appliance, Drone
  • Automotive System
  • USB Type-C Power Delivery

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
Pitch(mm)
Ø D(mm)
Pins
Type
Mount
IR(A)
Working Voltage(V (AC))
SamplesAvailability & Sample
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885012206077
SPECWCAP-CSGP MLCCs 50 V(DC), 100 pF, ±10%
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 pF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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885012206059
SPECWCAP-CSGP MLCCs 25 V(DC), 1 nF, ±10%
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

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Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance1 nF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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885012206071
SPECWCAP-CSGP MLCCs 25 V(DC), 100 nF, ±10%
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3.5 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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885012209048
SPECWCAP-CSGP MLCCs 50 V(DC), 4.7 µF, ±10%
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

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Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance4.7 µF
Capacitance±10% 
Rated Voltage50 V (DC)
Size1210 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor5 %
Insulation Resistance0.02 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width2.5 mm
Height2.5 mm
Pad Dimension0.6 mm
Packaging7" Tape & Reel 
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Packaging Unit1000 
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885012109011
SPECWCAP-CSGP MLCCs 16 V(DC), 47 µF, ±20%
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EDA models: Components ZIP

CAD files ZIP

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Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
Capacitance47 µF
Capacitance±20% 
Rated Voltage16 V (DC)
Size1210 
Operating Temperature -55 °C up to +85 °C
Dissipation Factor10 %
Insulation Resistance0.002 GΩ
Ceramic TypeX5R Class II 
Length3.2 mm
Width2.5 mm
Height2.5 mm
Pad Dimension0.75 mm
Packaging7" Tape & Reel 
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Packaging Unit1000 
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860040775006
SPECWCAP-ATUL Aluminum Electrolytic Capacitors, 100 µF, ±20%
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors
Capacitance100 µF
Capacitance±20% 
Rated Voltage63 V (DC)
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Dissipation Factor9 %
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Length12.5 mm
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PackagingAmmopack 
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Packaging Unit600 
Endurance 7000
Ripple Current640 mA
Leakage Current63 µA
Pitch5 mm
Diameter10 mm
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860040575007
SPECWCAP-ATUL Aluminum Electrolytic Capacitors, 220 µF, ±20%
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-ATUL Aluminum Electrolytic Capacitors
Capacitance220 µF
Capacitance±20% 
Rated Voltage35 V (DC)
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Dissipation Factor12 %
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Length12.5 mm
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PackagingAmmopack 
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Packaging Unit600 
Endurance 7000
Ripple Current1060 mA
Leakage Current77 µA
Pitch5 mm
Diameter10 mm
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744325550
SPECWE-HCI SMT Flat Wire High Current Inductor, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
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Size1050 
Operating Temperature -40 °C up to +150 °C
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Length10.5 mm
Width10.2 mm
Height4.7 mm
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Inductance5.5 µH
Performance Rated Current12 A
Saturation Current @ 10%4.5 A
Saturation Current @ 30%12 A
DC Resistance10.3 mΩ
Self Resonant Frequency30 MHz
MaterialSuperflux 
Packaging Unit700 
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Pins2 
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MountSMT 
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61300311121
SPECWR-PHD Pin Header - Single, –, –
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Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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Pitch2.54 mm
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Pins3 
TypeStraight 
MountTHT 
Rated Current3 A
Working Voltage250 V (AC)
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