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Texas Instruments TPS544B25
TPS544x25 4.5-V to 18-V, 20-A and 30-A SWIFT™ Synchronous Buck Converters with PMBus™ and Frequency Synchronization
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-18 V |
| Switching frequency | 200-1000 kHz |
| Output 1 | 0.95 V / 30 A |
Description
The TPS544x25 devices are PMBus 1.2 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 20-A or 30-A current output from a 5 mm × 7 mm package. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current and an optional external temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements.
Features
- PMBus 1.2 Compliant Converters: 20 A and 30 A
- Input Voltage Range: 4.5 V to 18 V
- Output Voltage Range: 0.5 V to 5.5 V
- 5 mm × 7 mm LQFN Package
- Single Thermal Pad
- Integrated 5.5-mΩ and 2.0-mΩ Stacked NexFET Power Stage
- 500-mV to 1500-mV Reference for Adapative Voltage Scaling (AVS) and Margining through PMBus
- 0.5% Reference Accuracy at 600 mV and Above
- Lossless Low-Side MOSFET Current Sensing
- Voltage Mode Control with Input Feed-Forward
- Differential Remote Sensing
- Monotonic Start-Up into Pre-Biased Output
- Output Voltage and Output Current Reporting
- External Temperature Monitoring with 2N3904 Transistor
- Programmable via the PMBus interface
- VOUT_COMMAND and AVS VOUT Transition Rate
- Overcurrent Protection with Thermal Compensation
- UVLO, Soft-Start and Soft-Stop
- PGOOD, OV, UV, OT Levels
- Fault Responses
- Turn-On and Turn-Off Delays
- Thermal Shutdown
- Pin Strapping for Switching Frequency: 200 kHz to 1 MHz
- Frequency Synchronization to an External Clock
- Footprint Compatible 20-A, 30-A Converters
Remarks:
- The TPS544x25 devices are PMBus 1.2 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 20-A or 30-A current output from a 5 mm × 7 mm package.
- Applications of TPS544C25 is applicable to TPS544B25
Typical applications
- High-Density Power Solutions
- Servers
- Ethernet Switches, Optical Switches, Routers, Base Stations
- Enterprise Storage SSD
- Test and Instrumentation
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | L (nH) | LR (nH) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Pitch (mm) | Mount | L (mm) | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012109014 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 22 µF | ±20% | 25 | 1210 | -55 °C up to +85 °C | 5 | 0.005 GΩ | X5R Class II | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | – | – | 3.2 | – | – | – | ||
| 885012109004 | SPEC | 8 files | WCAP-CSGP MLCCs 6.3 V(DC) | 100 µF | ±20% | 6.3 | 1210 | -55 °C up to +85 °C | 10 | 0.001 GΩ | X5R Class II | 2.5 | 0.6 | – | – | – | – | – | – | – | – | – | 2.5 | – | – | – | 7" Tape & Reel | – | – | 3.2 | – | – | – | ||
 | 744301047 | SPEC | 8 files | WE-HCM SMT High Current Flat Wire Inductor | – | – | – | 1190 | -40 °C up to +125 °C | – | – | – | 11 | 2.2 | 470 | 240 | 32.1 | 36.1 | 0.32 | 20 | MnZn | 2 | – | 8.9 | – | – | 38 | – | – | SMT | 11.3 | – | – | – | ||
 | 61201021621 | SPEC | – | 6 files | WR-BHD 2.54 mm Male Box Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | 10 | – | – | Male | Straight | 3 | Tray | 2.54 | THT | 20.36 | 250 | 20 | max. | |
 | 61300211121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | – | – | – | – | – | – | – | – | – | 2 | Single | – | Pin Header | Straight | 3 | Bag | 2.54 | THT | 5.08 | 250 | 20 | max. |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012109014 | SPEC | |
| 885012109004 | SPEC | |
| 744301047 | SPEC | |
| 61201021621 | SPEC | – |
| 61300211121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | W (mm) | Fl (mm) | L (nH) | LR (nH) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Pins | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Pitch (mm) | Mount | L (mm) | Working Voltage (V (AC)) | Contact Resistance (mΩ) | Tol. R | Samples |
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