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Overview
| Topology | Buck Converter |
| Input voltage | 44-60 V |
| Output 1 | 19 V / 12.5 A |
| IC revision | 1.0 |
Description
The EPC9148 demonstration board is a 60 V maximum input voltage,12.5 A maximum output current, 19 V output voltage, ultra-thin threelevel synchronous buck converter with only 3.5 mm component height. It features the 40 V EPC2055 and the 100 V EPC2053 and EPC2038 GaN FETs and the new Würth Elektronik super thin inductor 7443762504022. The purpose of this demonstrate board is to simplify the evaluation of GaN FET-based multi-level synchronous buck converter.
Features
- 44 – 60 VIN to 5 – 20 VOUT
- FSW = 400 kHz, Max height < 4mm
- Peak efficiency = 98%, Up to 12.5 A
Typical applications
- High Performance Computing – ultra-thin laptops, high-end gaming systems
More information
Application Notes
All technical functions in detail
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Ti | Ø OD(mm) | Ø ID(mm) | Qty. | ISAT,30%(A) | Core Material | Pins | Type | Mount | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 33 pF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance33 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit10000 | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 10 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance10 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit10000 | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 22 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance22 nF | Capacitance±10% | Rated Voltage25 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit10000 | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 10 V(DC), 1 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance1 µF | Capacitance±20% | Rated Voltage10 V (DC) | Size0402 | Operating Temperature -55 °C up to +85 °C | – | Dissipation Factor15 % | Insulation Resistance0.05 GΩ | Ceramic TypeX5R Class II | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit10000 | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit4000 | – | – | – | – | – | – | |||||
 | WR-PHD Pin Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance500 MΩ | – | Length3.81 mm | – | – | – | PackagingTape and Reel with Cap | – | Rated Current1 A | – | – | – | – | – | – | Packaging Unit600 | – | – | Pins6 | TypeStraight | MountSMT | Working Voltage100 V (AC) | |||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | Size4018 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length4 mm | Width4 mm | Height1.8 mm | – | – | Inductance68 µH | Rated Current0.54 A | Saturation Current0.63 A | DC Resistance840 mΩ | Self Resonant Frequency9 MHz | – | – | – | Packaging Unit3000 | – | – | – | – | MountSMT | – | ||||
 | WA-SMSI SMT Steel Spacer with internal Thread M2, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SMSI SMT Steel Spacer with internal Thread M2 | – | – | – | – | Operating Temperature -55 °C up to +150 °C | – | – | – | – | Length1 mm | – | – | – | PackagingTape and Reel | – | – | – | – | – | Inner ThreadM2 | Outer Diameter4.35 mm | Inner Diameter2.8 mm | Packaging Unit1500 | – | – | – | – | – | – | |||
 | WE-HCFT THT High Current Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCFT THT High Current Inductor | – | – | – | Size2504 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length22 mm | Width25.7 mm | Height4.1 mm | – | – | Inductance2.2 µH | Rated Current30 A | Saturation Current23.8 A | DC Resistance1.78 mΩ | Self Resonant Frequency23 MHz | – | – | – | – | Saturation Current @ 30%23.8 A | Core MaterialMnZn | – | – | MountTHT | – |
Suitable Reference Designs
How to Design a Synchronous Buck Converter Using eGaN® FETs
How to Design a Synchronous Buck Converter Using eGaN® FETs