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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-15 V |
| Output 1 | 1 V / 35 A |
| IC revision | B |
Description
The TPS543B20 employs 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.
Features
- Internally-Compensated Advanced Current Mode Control 25-A POL
- Input Voltage Range: 4 V to 19 V
- Output Voltage Range: 0.6 V to 5.5 V
- Integrated 4.1/1.9-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 50 A With Current Share, Voltage Share, and CLK Sync
- Pin Strapping Programmable Reference from 0.6 V 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
Typical applications
- Enterprise storage, SSD, NAS/ Enterprise server, switches, routers
- Wireless and wired communication infrastructure
- Industrial PCs, automation, ATE, PLC, video surveillance/ ASIC, SoC, FPGA, DSP core and I/O rails
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (nH) | LR (nH) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Ø D (mm) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691242510004 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 2425 - 5.08 mm Horizontal Entry Modular w. Rising Cage Clamp | Rising Cage Clamp | PCB | No | 12 to 30 (AWG) 3.31 to 0.0509 (mm²) | – | – | – | – | -30 °C up to +120 °C | – | – | – | – | 20.32 | – | – | – | – | – | – | – | – | – | – | -30 °C up to +120 °C | – | – | – | 4 | – | – | – | Horizontal | 24 | Box | |
 | 744309047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCM SMT High Current Flat Wire Inductor | – | – | – | – | – | – | – | 1390 | -40 °C up to +125 °C | – | – | – | – | 14 | 13 | 1.8 | 470 | 200 | 35.1 | 46.8 | 0.165 | 22 | MnZn | – | – | – | – | – | 2 | – | 9 | – | – | 47.5 | – | ||
 | 865230457008 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-AS5H Aluminum Electrolytic Capacitors | – | – | – | – | 330 µF | ±20% | 25 | 10.0 x 10.5 | -40 °C up to +105 °C | – | 16 | 0.30303 MΩ | – | 10.5 | 10.3 | – | – | – | – | – | – | – | – | 5000 | -40 °C up to +105 °C | 375 | 82.5 | 10 | – | – | – | – | – | – | 15" Tape & Reel | ||
 | 885012005057 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | 22 pF | ±5% | 50 | 0402 | -55 °C up to +125 °C | 840 | – | 10 GΩ | NP0 Class I | 1 | 0.5 | 0.25 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.5 | – | – | – | 7" Tape & Reel | ||
| 885012006062 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | 680 pF | ±5% | 50 | 0603 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206020 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | 100 nF | ±10% | 10 | 0603 | -55 °C up to +125 °C | – | 5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | ||
| 885012206071 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | 100 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | – | 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 | ||
| 885012108005 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 6.3 V(DC) | – | – | – | – | 100 µF | ±20% | 6.3 | 1206 | -55 °C up to +85 °C | – | 10 | 0.001 GΩ | X5R Class II | 3.2 | 1.6 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.6 | – | – | – | 7" Tape & Reel | ||
 | 61300211121 | 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 | – | 5.08 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2 | Single | – | Pin Header | Straight | 3 | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691242510004 | SPEC | – |
| 744309047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 865230457008 | SPEC | |
| 885012005057 | SPEC | |
| 885012006062 | SPEC | |
| 885012206020 | SPEC | |
| 885012206071 | SPEC | |
| 885012206095 | SPEC | |
| 885012108005 | SPEC | |
| 61300211121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (nH) | LR (nH) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Ø D (mm) | Pins (Value) (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Samples |
|---|