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Texas Instruments TPS543C20A | Demoboard TPS543C20AEVM
TPS543C20AEVM-054 40-A Single Phase Synchronous Step-Down Converter
Overview
| Topology | Buck Converter |
| Input voltage | 5-16 V |
| Switching frequency | 500-20000 kHz |
| Output 1 | 0.9 V / 40 A |
Description
The TPS543C20A uses an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 40 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543C20A devices can be stacked together to provide up to 80-A point-of-load.
Features
- Internally-Compensated Advanced Current Mode Control 40-A POL
- Input Voltage Range: 4 V to 16 V
- Output Voltage Range: 0.6 V to 5.5 V
- Integrated 3.4/0.9-mΩ Stacked NexFET™ Power Stage With Lossless Low-Side Current Sensing
- Fixed Frequency - Synchronization to an External Clock and/or Sync Out
- Pin Strapping Programmable Switching Frequency
- 300 kHz to 2 MHz for Standalone
- 300 kHz to 1 MHz for Stackable
- Stack 2× for up to 80 A With Current Share, Voltage Share, and CLK Sync
- Pin Strapping Programmable Reference from 0.6V to 1.1 V With 0.5% Accuracy
- Differential Remote Sensing
- Safe Start-Up into Prebiased Output
- High-Accuracy Hiccup Current Limit
- Asynchronous Pulse Injection (API) and Body Braking
- 40-pin, 5-mm × 7-mm LQFN Package with 0.5-mm Pitch and Single Thermal Pad
- Create a Custom Design Using the TPS543C20A With the WEBENCH® Power Designer
Typical applications
- Wireless and Wired Communications Infrastructure Equipment
- Enterprise Servers, Switches, and Routers, Enterprise Storage, SSD, ASIC, SoC, FPGA, DSP Core, and I/O Rails
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(nH) | LR(nH) | IR(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Ø D(mm) | Mount | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCM SMT High Current Flat Wire Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCM SMT High Current Flat Wire Inductor | Pins2 | – | – | – | – | – | – | – | Size1390 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Length14 mm | Width13 mm | Height9 mm | Pad Dimension1.8 mm | – | Inductance470 nH | Rated Inductance200 nH | Rated Current47.5 A | Saturation Current @ 10%35.1 A | Saturation Current @ 30%46.8 A | DC Resistance0.165 mΩ | Self Resonant Frequency22 MHz | MaterialMnZn | – | – | – | – | MountSMT | – | ||||
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingBag | – | – | Rated Current3 A | – | – | – | – | – | – | – | – | – | MountTHT | Working Voltage250 V (AC) | |||
 | WR-TBL Series 2425 - 5.08 mm Horizontal Entry Modular w. Rising Cage Clamp, 4, Rising Cage Clamp | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Pins4 | PCB/Cable/PanelPCB | ModularityNo | TypeHorizontal | Wire Section 12 to 30 (AWG) 3.31 to 0.0509 (mm²) | – | – | – | – | Operating Temperature -30 °C up to +120 °C | – | – | – | – | Length20.32 mm | – | – | – | PackagingBox | – | – | Rated Current24 A | – | – | – | – | – | – | – | – | – | MountTHT | Working Voltage250 V (AC) | ||||
 | WCAP-AS5H Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-AS5H Aluminum Electrolytic Capacitors | – | – | – | – | – | Capacitance330 µF | Capacitance±20% | Rated Voltage25 V (DC) | Size10.0 x 10.5 | Operating Temperature -40 °C up to +105 °C | – | Dissipation Factor16 % | Insulation Resistance0.30303 MΩ | – | Length10.5 mm | Width10.3 mm | – | – | Packaging15" Tape & Reel | – | – | – | – | – | – | – | – | Endurance 5000 | Ripple Current375 mA | Leakage Current82.5 µA | Diameter10 mm | MountV-Chip SMT | – | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance22 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0402 | Operating Temperature -55 °C up to +125 °C | Q-Factor840 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1 mm | Width0.5 mm | Height0.5 mm | Pad Dimension0.25 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | Capacitance680 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | 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 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | 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 6.3 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 6.3 V(DC) | – | – | – | – | – | Capacitance100 µF | Capacitance±20% | Rated Voltage6.3 V (DC) | Size1206 | Operating Temperature -55 °C up to +85 °C | – | Dissipation Factor10 % | Insulation Resistance0.001 GΩ | Ceramic TypeX5R Class II | Length3.2 mm | Width1.6 mm | Height1.6 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – |