TPS54020RUWT Texas Instruments Integrated Circuit (Other) In Stock
TPS54020RUWT is a synchronous current-mode PWM step-down DC-DC converter from Texas Instruments accepting 4.5 V to 17 V input and delivering up to 10 A at adjustable outputs from 0.6 V to 5 V. Integrated high- and low-side MOSFETs eliminate external switches and reduce BOM for high-density point-of-load designs. The device is housed in a compact 15-pin VQFN package with exposed pad for efficient thermal dissipation. From competitive pricing in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TPS54020RUWT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.9980(MOQ 1)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated synchronous MOSFETs enable up to 10 A continuous output current with high conversion efficiency, reducing external component count and PCB area
- Wide 4.5 V to 17 V input range covers 5 V, 12 V, and intermediate bus architectures common in servers, networking equipment, and industrial systems
- Current-mode PWM control with adjustable output from 0.6 V to 5 V provides fast transient response and accurate voltage regulation for FPGAs and DSPs
Applications
TPS54020RUWT is designed for point-of-load power conversion on server and networking line cards where 12 V bus power must be stepped down to 1.0 V, 1.8 V, or 3.3 V at up to 10 A for processors and FPGAs. Its wide input range also makes it effective in industrial automation controllers powered from 5 V to 15 V unregulated adapters requiring a tightly regulated core voltage. The device is further applied in telecom base-station radio units and high-performance data acquisition systems where compact switching regulators must achieve high efficiency in a small 15-pin VQFN footprint.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 17V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PXSS-N15 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 10A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SPECIAL SHAPE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1200kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Position | UNSPECIFIED |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS54020RUWT:
Switching Regulator, Current-mode, 10A, 1200kHz Switching Freq-Max, PXSS15
Frequently Asked Questions
How does TPS54020RUWT achieve 10 A output without external MOSFETs compared to a discrete buck design?
TPS54020RUWT integrates both the high-side and low-side N-channel MOSFETs inside the 15-pin VQFN package, eliminating 2 external switches and their gate-drive circuitry. This integration reduces the power stage PCB area by roughly 40% versus a discrete solution while achieving peak efficiencies above 90% at typical 12 V to 1.8 V conversions with 10 A load current.
What output voltage range can TPS54020RUWT regulate to and how is it set?
TPS54020RUWT adjusts its output from 0.6 V to 5 V using an external resistor-divider connected to the feedback pin referenced to an internal 0.6 V reference. This flexibility lets a single part supply core voltages of 0.9 V for DDR memory, 1.0 V for processor cores, 1.8 V for I/O rails, and 3.3 V for logic buses, all from the same 12 V nominal input.
How does current-mode PWM control in TPS54020RUWT benefit designs with rapidly changing load currents?
Current-mode control adds an inner current feedback loop that responds to load changes in under 1 us, significantly faster than voltage-mode controllers. For FPGAs and multi-core processors that switch hundreds of milliamps in nanoseconds, TPS54020RUWT maintains output voltage within tight 2% windows during these 10 A transients, preventing logic errors caused by supply droop.
What are the board-level thermal advantages of the exposed-pad VQFN-15 package at full 10 A load?
The exposed pad on the bottom of TPS54020RUWT's 15-pin VQFN transfers the majority of switching and conduction losses directly to the PCB ground plane copper pour. At 10 A output with a 12 V to 1.8 V conversion, total power dissipation is approximately 2 W to 3 W, and the exposed pad keeps junction temperature within the 150 degrees C limit using a 2-layer PCB with a 1 cm squared copper area.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.9980 | $5.00 |
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