TPS548B28RWWR Texas Instruments Integrated Circuit (Other) In Stock
TPS548B28RWWR is a 20A synchronous step-down PWM switching voltage regulator by Texas Instruments in a compact 21-pin QFN package. Key specs: 2.7V to 16V input voltage range, PWM control, Pb-free construction. From $4.00, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 22
- Lifecycle
- ACTIVE
- Datasheet
- TPS548B28RWWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 20A continuous output current capability with synchronous rectification in a 21-pin QFN package, enabling high-density power delivery for ASICs, FPGAs, and DSPs
- Wide input voltage range of 2.7V to 16V supporting multiple rail conversions from 3.3V, 5V, or 12V bus supplies in a single device
- Pulse width modulation control with integrated power MOSFETs, eliminating external switching transistors and reducing BOM count for compact point-of-load converter designs
Applications
The TPS548B28RWWR is designed for high-current point-of-load (POL) DC-DC power conversion in servers, networking equipment, FPGAs, ASICs, and DSP power supplies. Its 20A output current and wide 2.7V to 16V input range make it suitable for converting 5V or 12V bus rails down to core voltages in computing and communications hardware. It is also used in solid-state storage devices, industrial automation equipment, and test and measurement instruments requiring a compact, high-efficiency step-down regulator.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 3V |
| JESD-30 Code | R-XQCC-N21 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 20A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Output Voltage-Nom | 1.25V |
| Package Body Material | UNSPECIFIED |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current of the TPS548B28RWWR?
The TPS548B28RWWR is rated for 20A continuous output current as a synchronous step-down (buck) switching regulator. This high current capability makes it suitable for powering high-performance processors, FPGAs, ASICs, and memory arrays that require substantial current at low core voltages.
What is the input voltage range of the TPS548B28RWWR?
The TPS548B28RWWR accepts an input voltage range from 2.7V minimum to 16V maximum, with a nominal input of 3V. This wide range allows it to step down from standard 3.3V, 5V, and 12V system bus rails, making it versatile for multi-rail server, networking, and industrial power distribution designs.
What control method does the TPS548B28RWWR use?
The TPS548B28RWWR uses pulse width modulation (PWM) control to regulate its output voltage. PWM control provides tight output voltage regulation, predictable switching frequency for EMI filter design, and good transient response characteristics that are important for dynamic processor and FPGA load applications.
What package does the TPS548B28RWWR come in?
The TPS548B28RWWR is housed in a 21-pin QCC (Quad Flat No-Lead, XQCC) package, JESD-30 code R-XQCC-N21. This small-footprint surface-mount package integrates the controller and power MOSFETs, minimizing PCB area and simplifying thermal management in high-density power supply layouts.
What are typical applications for the TPS548B28RWWR?
Typical applications include point-of-load converters for server CPUs and FPGAs, memory power supplies in data center equipment, core voltage rails in networking ASICs, and power modules for industrial computing platforms. Its 20A output and integrated FETs are ideal wherever high current delivery and compact design are both priorities.
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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.
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