TPS54310PWPR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS54310PWPR-P is a 3 A synchronous step-down DC/DC converter with an input range of 3.5 V to 5.5 V in a 20-pin PWP small-outline package. It integrates low-RDS(on) MOSFETs and supports adjustable output voltage. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPS54310PWPR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3 A continuous output current with integrated synchronous MOSFETs for high-efficiency step-down conversion from a 3.5 V to 5.5 V input
- Adjustable output voltage down to 0.9 V using an external resistor divider, enabling flexible point-of-load rails
- Compact 20-pin PWP (HTSSOP) package with exposed thermal pad for improved heat dissipation in space-constrained designs
Applications
The TPS54310PWPR-P is designed for point-of-load power rails in networking equipment, industrial control boards, and embedded computing platforms that require a tightly regulated 3 A supply from a 5 V bus. Its synchronous rectification and integrated MOSFETs reduce external component count and improve conversion efficiency above 90% under typical loads. It is also used in battery-powered portable equipment and communication modules where board space is limited and thermal performance matters.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS54310PWPR-P:
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO20
Frequently Asked Questions
What input voltage range and output current does the TPS54310PWPR-P support in a typical 5 V to 3.3 V conversion?
The TPS54310PWPR-P accepts an input voltage from 3.5 V to 5.5 V and delivers up to 3 A continuous output current. In a standard 5 V to 3.3 V conversion, it achieves efficiency above 90%, making it practical for powering FPGAs, processors, and other logic circuits from a USB or 5 V bus rail.
How low can the TPS54310PWPR-P regulate its output voltage for sub-1 V core rails?
The adjustable output voltage can be set as low as 0.9 V using an external resistor divider connected to the feedback pin. This allows the TPS54310PWPR-P to power modern processor core rails operating at 1.0 V or 1.2 V, which are common in networking SoCs and FPGA core supplies.
Does the 20-pin PWP package of the TPS54310PWPR-P offer thermal advantages for high-current applications?
Yes. The PWP package (HTSSOP-20) includes an exposed thermal pad on the bottom, which reduces junction-to-board thermal resistance significantly compared to standard SOIC packages. At 3 A output with a properly designed PCB copper pour, the junction temperature stays within the 150°C maximum even in a 70°C ambient environment.
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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.
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