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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
- White Goods, Home Appliance
- network systems
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) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012206028 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | 100 pF | ±10% | 16 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206062 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 3.3 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206095 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012209073 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 10 µF | ±10% | 50 | 1210 | -55 °C up to +125 °C | 10 | 0.01 GΩ | X7R Class II | 3.2 | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
| 885012109010 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | 22 µF | ±20% | 16 | 1210 | -55 °C up to +85 °C | 10 | 0.02 GΩ | X5R Class II | 3.2 | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | ||
 | 61300311121 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 7.62 | – | – | – | – | – | – | – | – | THT | 3 | Single | – | Pin Header | Straight | 3 | Bag | |
 | 74439346068 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-XHMI SMT Power Inductor | – | – | – | 6060 | -40 °C up to +125 °C | – | – | – | 6.65 | 6.45 | – | 6.8 | 8.1 | 11.3 | 17.6 | 19.36 | 22 | SMT | 2 | – | 6.1 | – | – | 6.5 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012206028 | SPEC | |
| 885012206062 | SPEC | |
| 885012206095 | SPEC | |
| 885012209073 | SPEC | |
| 885012109010 | SPEC | |
| 61300311121 | SPEC | – |
| 74439346068 | SPEC |
| Samples |
|---|
| 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) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|