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Silicontent Technology SCT2450C
4.5V-42V Vin,5A, High Efficiency Step-down DCDC Converter with Programmable Frequency
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-40 V |
| Switching frequency | 100-1200 kHz |
| Output 1 | 3.3 V / 5 A |
| IC revision | 1.0 |
Description
The EV2450C-B-02A Evaluation Board is designed to demonstrate the capabilities of SCT2450C, high efficiency non-synchronous step-down DCDC converter supporting up to 5A continuous output current from an input source from 4.5V to 40V.The SCT2450C features programmable switching frequency from 100 kHz to 1.2 MHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100kHz to 1.2MHz. The device offers fixed 2ms soft start to prevent inrush current during the startup of output voltage ramping. The SCT2450C features external loop compensation to provide the flexibility to optimize either loop stability or loop response.This user's guide describes the characteristics,operation and the use of the EV2450C-B-02A Evaluation Module including EVM specifications,recommended test setup, test result, schematic diagram, bill of materials, and the board layout.
Features
- Wide Input Range: 4.5V-40V
- Up to 5A Continuous Output Current
- 0.8V ±1% Feedback Reference Voltage
- Integrated 80mΩ High-Side
- Ultra-Low Quiescent Current: 175uA
- Pulse Skipping Mode (PSM) in light load
- 130ns Minimum On-time
- 2ms Internal Soft-start Time
- Adjustable Frequency 100KHz to 1.2MHz
- External Clock Synchronization
- Precision Enable Threshold for Programmable Input Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis
- Derivable Inverting Voltage Regulator
- Over-voltage and Over-Temperature Protection
- Available in an ESOP-8 Package
Typical applications
- Industrial Distributed Power Supplies, Battery Pack Powered System - Cordless Power Tools, Cordless Home Appliance, Drone etc. USB Type-C Power Delivery
- Automotive System
- Optical Communication and Networking System
More information
Products
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 | Pins | Type | Mount | IR(A) | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 47 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance47 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 | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | 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 | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 100 V(DC), 2.2 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | Capacitance2.2 µF | Capacitance±10% | Rated Voltage100 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance0.05 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2.5 mm | Pad Dimension0.75 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), 47 µF, ±20% | 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 | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-HCI SMT Flat Wire High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | – | – | – | Size1050 | Operating Temperature -40 °C up to +150 °C | – | – | – | Length10.5 mm | Width10.2 mm | Height4.7 mm | – | – | 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 | Pins2 | – | MountSMT | – | – | ||||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length7.62 mm | – | – | – | PackagingBag | – | – | – | – | – | – | – | Pins3 | TypeStraight | MountTHT | Rated Current3 A | Working Voltage250 V (AC) |