TPS54394PWP-P Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS54394PWP-P is a synchronous step-down DC-DC converter by Texas Instruments. Key specs include a 4.5 V to 17 V input range, up to 3 A output current, and a compact 20-pin PowerPAD TSSOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- TPS54394PWP-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Synchronous buck topology achieves high efficiency up to 95% eliminating external catch diode
- 4.5 V to 17 V wide input range covers single-cell Li-ion to 12 V industrial rail applications
- Integrated 20-pin PowerPAD TSSOP package with 1.2 mm max height suits space-constrained PCB designs
Applications
TPS54394PWP-P is designed for point-of-load power conversion in telecom equipment, industrial controllers, and embedded processor boards. Its 3 A output current capability and wide 4.5 V to 17 V input range make it suitable for powering FPGAs, DSPs, and microcontroller cores from a single supply rail. The device is also used in automotive infotainment auxiliary power stages and test instrumentation requiring compact, thermally efficient regulators.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does TPS54394PWP-P support, and which power-rail architectures does it suit?
TPS54394PWP-P accepts 4.5 V to 17 V input, covering single Li-ion cell, 5 V USB, and 12 V industrial bus rails. This range lets system designers use one regulator across multiple supply architectures without redesigning the power stage for each application.
How does the PowerPAD TSSOP package of TPS54394PWP-P help in thermally constrained board designs?
The 20-pin PowerPAD TSSOP package provides a bottom-side thermal pad that transfers heat directly to the PCB copper, keeping junction temperature low at 3 A output current. The 1.2 mm maximum body height also fits under low-profile enclosures where taller SOIC packages would not clear.
When is TPS54394PWP-P preferable to an asynchronous buck converter for a 5 V to 1.8 V conversion at 2 A?
TPS54394PWP-P's synchronous rectification eliminates the external Schottky diode, reducing BOM cost and improving efficiency at 2 A load by up to 5 percentage points compared to asynchronous designs. Its 95% peak efficiency also reduces heat dissipation, which is critical in convection-cooled industrial enclosures.
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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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