TPS54425PWPR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS54425PWPR-P is a synchronous step-down (buck) switching regulator delivering up to 4 A output current with an adjustable output voltage starting from 0.76 V, housed in a 14-pin TSSOP package with an exposed thermal pad. It features wide input voltage range and integrated high- and low-side MOSFETs for high-efficiency DC-DC conversion. Designed for point-of-load power supplies in embedded systems, FPGAs, DSPs, and industrial computing platforms.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TPS54425PWPR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS54425PWPR-P?
- 4 A continuous output current with integrated synchronous rectifier MOSFETs for high efficiency
- Adjustable output voltage down to 0.76 V for powering FPGA and DSP core rails
- 14-pin TSSOP with exposed thermal pad for enhanced heat dissipation at full 4 A load
- Wide input voltage range compatible with 5 V and 12 V system bus rails
- Integrated bootstrap capacitor and gate driver reduce external component count
- Eco-mode light-load efficiency optimization for standby power reduction
What is TPS54425PWPR-P used for?
The TPS54425PWPR-P is used as a point-of-load DC-DC buck converter in FPGA and DSP power supply designs that require tightly regulated core voltages from 0.76 V to 3.3 V at up to 4 A from a 5 V or 12 V input bus. It suits industrial computing modules, embedded server blades, and programmable logic controller (PLC) cards where multiple sub-1 V rails must be generated efficiently from a single board power input. Telecom line cards and test-and-measurement equipment also deploy this regulator for clean, low-noise point-of-load power on analog processing stages requiring stable sub-1 V supplies.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TPS54425PWPR-P datasheet?
TPS54425PWPR-P Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS54425PWPR-P?
Compatible alternatives and drop-in replacements for TPS54425PWPR-P:
suggested
suggested
suggested
suggested
Switching Regulator, Voltage-mode, 4A, 700kHz Switching Freq-Max, PDSO14
Switching Regulator, Voltage-mode, 4A, 700kHz Switching Freq-Max, PDSO14
Frequently Asked Questions
What is the maximum output current and minimum output voltage of TPS54425PWPR-P?
TPS54425PWPR-P can supply up to 4 A continuous output current and supports an adjustable output voltage with a minimum of 0.76 V, set by an external resistor divider. This 0.76 V floor makes it directly suitable for powering FPGA core rails, DSP processing planes, and DDR memory termination circuits that require sub-1 V regulated supplies at high current from a 5 V or 12 V input bus.
How does the exposed thermal pad on TPS54425PWPR-P improve thermal performance at 4 A output?
The 14-pin TSSOP exposed thermal pad provides a direct low-resistance thermal path from the IC die to the PCB copper ground plane, significantly reducing junction temperature at 4 A output compared to a standard TSSOP without an exposed pad. Soldering the pad to a 1 oz or 2 oz copper pour with multiple thermal vias typically reduces thermal resistance by 40–60%, allowing the regulator to operate continuously at 4 A in ambient temperatures up to 70°C without a heatsink.
For an FPGA core power rail design, how is the output voltage of TPS54425PWPR-P set to 1.0 V?
The output voltage of TPS54425PWPR-P is set by connecting a resistor divider from the output rail (VOUT) to the feedback pin (FB), with the internal reference at 0.76 V. For a 1.0 V output, the upper resistor (R1) and lower resistor (R2) are calculated as R1 = R2 × (VOUT/VREF − 1) = R2 × (1.0/0.76 − 1) ≈ 0.316 × R2. Using R2 = 10 kΩ gives R1 ≈ 3.16 kΩ, setting the feedback loop to regulate at 1.0 V at up to 4 A for Xilinx or Intel FPGA core rails.
What efficiency advantage does the synchronous rectifier in TPS54425PWPR-P provide over non-synchronous designs at 4 A?
The integrated synchronous low-side MOSFET in TPS54425PWPR-P replaces the external Schottky diode in a non-synchronous buck, reducing conduction losses by replacing the 0.3–0.5 V diode forward voltage drop with a low RDS(on) MOSFET. At 4 A output current, a Schottky diode dissipates approximately 1.2–2.0 W whereas the synchronous MOSFET typically dissipates under 0.5 W, improving efficiency by 5–10 percentage points at medium-to-heavy loads — a critical improvement in FPGA power trees targeting over 90% peak efficiency.
Is TPS54425PWPR-P suitable for automotive or industrial temperature range designs?
TPS54425PWPR-P is rated for operation across the industrial temperature range of -40°C to 85°C ambient, making it appropriate for industrial computing, factory automation, and ruggedized embedded systems. However, for automotive applications requiring AEC-Q100 Grade 1 qualification (up to 125°C), designers should verify the specific -P suffix qualification documentation or consider automotive-specific TPS5442x variants rated for -40°C to 125°C junction temperature in harsh vehicle environments.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit