TPS54325PWPR-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS54325PWPR-P is a 3 A synchronous step-down DC-DC converter with integrated high-side and low-side MOSFETs, operating from 4.5 V to 17 V input in a 14-pin HTSSOP package with exposed thermal pad. Suited for point-of-load power rails in industrial and telecom designs with worldwide availability.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- TPS54325PWPR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS54325PWPR-P?
- 3 A integrated synchronous buck converter with internal MOSFETs, eliminating external FETs and reducing BOM
- 4.5 V to 17 V input range with adjustable output from 0.8 V, covering a wide range of point-of-load applications
- Eco-mode light-load efficiency optimization extends battery runtime in portable and low-standby-power industrial designs
What is TPS54325PWPR-P used for?
The TPS54325PWPR-P is designed for generating 1.8 V, 2.5 V, and 3.3 V point-of-load rails in industrial control systems, network equipment, and DSP/FPGA power supplies where 4.5 V to 17 V bus voltage is available. Its 3 A continuous output current supports both digital logic cores and analog peripherals from a single converter. The HTSSOP package with exposed thermal pad enables compact high-efficiency PCB designs without external heatsinks at full load.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TPS54325PWPR-P datasheet?
TPS54325PWPR-P Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS54325PWPR-P?
Compatible alternatives and drop-in replacements for TPS54325PWPR-P:
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO14
Switching Regulator, Voltage-mode, 3A, 700kHz Switching Freq-Max, PDSO14
Frequently Asked Questions
What is the input voltage range of the TPS54325PWPR-P and which DC bus standards does it support?
The TPS54325PWPR-P accepts input voltages from 4.5 V to 17 V, covering 5 V, 12 V, and regulated 15 V industrial DC bus standards. This range allows the converter to operate directly from a 12 V ATX rail, a 5 V USB power bus, or a 15 V telecom intermediate bus without pre-regulation. The wide input range simplifies power architecture in multi-rail systems by using a single converter design across voltage bus variants.
How does the integrated synchronous topology of TPS54325PWPR-P improve efficiency compared to non-synchronous buck converters?
The TPS54325PWPR-P uses an integrated synchronous low-side MOSFET instead of a Schottky diode, reducing the freewheeling conduction voltage drop from approximately 0.5 V to under 0.1 V. At 3 A output current, this reduces power loss by about 1.2 W compared to a Schottky-based design, improving efficiency by 3–5% at medium loads. The internal MOSFETs also eliminate two external FETs, reducing component count and PCB area.
What output voltage can TPS54325PWPR-P be configured for, and which resistors set it?
The TPS54325PWPR-P adjusts output voltage via an external resistor divider from VOUT to the feedback pin, which has a 0.8 V reference. Standard output voltages such as 1.8 V, 2.5 V, and 3.3 V require a divider ratio of 1.25, 2.125, and 3.125 respectively, achievable with 1% tolerance resistors from standard E96 series values. The 0.8 V minimum output enables direct supply of DSP core voltages in 28 nm and below semiconductor processes.
Is TPS54325PWPR-P suitable for FPGA core voltage rails requiring low output ripple?
Yes, the TPS54325PWPR-P supports switching frequencies up to 600 kHz, which combined with an LC output filter of 10 µH and 100 µF reduces output voltage ripple to below 20 mV peak-to-peak at 3 A load. Most FPGA core voltage specifications require ripple below ±3% of nominal, so for a 1.0 V core rail this means staying within ±30 mV — well within the converter's capability with proper filter component selection.
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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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