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Silicontent Technology SCT9331 | Demoboard EV9331-B-01A
3.8V-32V Vin, 3.5A Synchronous Buck Converter with EMI Reduction
Overview
| Topology | Buck Converter |
| Input voltage | 3.8-32 V |
| Output 1 | 5 V / 3.5 A |
| IC revision | 1.0 |
Description
The EV9331-B-01A Evaluation Board is designed to demonstrate the capabilities of SCT9331, what are 3.5A, EMI friendly synchronous buck converters with up to 32V wide input voltage range. The SCT9331 features an ultra-low quiescent operating current of 22uA. The device has a Power Good Indicator with a pull-up resistance of 5MΩ.This user's guide describes the characteristics, operation and the use of the EV9331-B-01A Evaluation Module including EVM specifications, recommended test setup, test result, schematic diagram, bill of materials, and the board layout.
Features
- EMI Reduction with Switching Node Ringing-free
- 3.8V-32V Wide Input Voltage Range
- Up to 3.5A Continuous Output Load Current
- 0.8V ±1% Output Voltage
- Fully Integrated 74mΩ Rdson High-side MOSFET and 40mΩ Rdson Low-side MOSFET
- Supports Pulse Frequency Modulation (PFM)
- 22μA Low Quiescent Current
- 450KHz Switching Frequency with ±6% Frequency Spread Spectrum FSS Modulation
- 100ns Minimum On-time
- Precision Enable Threshold for Programmable UVLO Threshold and Hysteresis
- Low Drop-Out LDO Operation
- Pulse Skipping Modulation PSM in Light Load
- 4ms Built-in Soft-start Time
- Power Good Indicator with 5MΩ Internal Pull-up
- Available in , V-DFN3020-13/SWP Package
Typical applications
- Printer, Charging Station, Audio, WiFi Speaker
- network systems
- White Goods, Home Appliance
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,30%(A) | RDC typ.(mΩ) | RDC max.(mΩ) | fres(MHz) | Mount | Pins | Type | IR(A) | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 16 V(DC), 100 pF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance100 pF | Capacitance±10% | Rated Voltage16 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 25 V(DC), 3.3 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance3.3 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 50 V(DC), 10 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance10 µF | Capacitance±10% | Rated Voltage50 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2.5 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), 22 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance22 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size1210 | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance0.02 GΩ | Ceramic TypeX5R Class II | Length3.2 mm | Width2.5 mm | Height2.5 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | |||||
 | 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 | – | – | – | – | – | – | MountTHT | Pins3 | TypeStraight | Rated Current3 A | Working Voltage250 V (AC) | |||
 | WE-XHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMI SMT Power Inductor | – | – | – | Size6060 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length6.65 mm | Width6.45 mm | Height6.1 mm | – | – | Inductance6.8 µH | Performance Rated Current8.1 A | Saturation Current @ 30%11.3 A | DC Resistance17.6 mΩ | DC Resistance19.36 mΩ | Self Resonant Frequency22 MHz | MountSMT | Pins2 | – | Rated Current6.5 A | – |