TPS51396ARJER Texas Instruments Integrated Circuit (Other) In Stock
TPS51396ARJER is a high-current synchronous buck switching regulator from Texas Instruments delivering up to 8 A output in a 20-pin VFQFN exposed-pad package. Supports 4.5 V to 24 V input with adjustable output from 0.6 V using voltage-mode PWM control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPS51396ARJER Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6346(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8 A continuous output current capability supporting high-power processor and FPGA core rail designs
- Wide 4.5 V to 24 V input range with 0.6 V adjustable output enabling diverse embedded computing power architectures
- Compact 20-pin VFQFN exposed-pad package with superior thermal performance for high-density power converter PCBs
Applications
TPS51396ARJER is designed for powering FPGA core and I/O rails, DSP processors, and multi-core SoCs in telecommunications infrastructure, industrial automation, and embedded computing platforms. Its 8 A output current handles transient demands from processors switching between active and sleep states while maintaining output regulation within tight voltage margins. The device is also applied in high-density server blade power trees and network switch power systems requiring reliable 4.5 V to 24 V step-down conversion with fast transient response.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 24V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-XQCC-N20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 8A |
| Output Voltage-Max | 7V |
| Output Voltage-Min | 0.6V |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC20(UNSPEC) |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | 0.45mm |
| 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
Compatible alternatives and drop-in replacements for TPS51396ARJER:
Switching Regulator, Voltage-mode, 8A, 1000kHz Switching Freq-Max, BICMOS
Frequently Asked Questions
How does TPS51396ARJER handle transient load steps from FPGA core rails that switch between 1 A idle and 8 A active current?
TPS51396ARJER uses voltage-mode PWM control with a fast error amplifier that responds to load transients within a few microseconds. With proper output capacitor selection of 100 µF to 470 µF, the output voltage deviation during a 1 A to 8 A load step can be held within 50 mV to 100 mV of the 0.6 V reference, meeting the ±5% regulation window required by most FPGA core specifications such as Intel Arria 10 and Xilinx Ultrascale families.
What is the thermal advantage of the exposed-pad VFQFN package in TPS51396ARJER for high-current operation?
The 20-pin VFQFN exposed pad transfers heat directly from the die to the PCB copper plane, achieving a junction-to-board thermal resistance of approximately 5°C/W to 10°C/W. At 8 A output with typical 90% efficiency, roughly 0.5 W to 1 W of heat is dissipated, keeping junction temperature well below the maximum rating. This compares favorably to leaded packages with 30°C/W to 50°C/W thermal resistance, enabling full-load operation without external heatsinks.
For a 12 V to 1.0 V point-of-load converter, how does TPS51396ARJER compare to a lower-current 3 A buck regulator?
A 3 A buck regulator limits the load to 3 W at 1.0 V output, which may be insufficient for modern 4-core processors requiring 5 W to 8 W at full CPU utilization. TPS51396ARJER at 8 A provides up to 8 W at 1.0 V output from the 12 V rail, covering the peak power budget with 100% margin for future-proofing. The 8 A device also runs cooler per ampere than a 3 A device operating at its thermal limit, improving long-term reliability in high-availability systems.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.7488 | $187.20 |
| 275+ | $0.7339 | $201.82 |
| 355+ | $0.7094 | $251.84 |
| 475+ | $0.6360 | $302.10 |
| 15000+ | $0.6346 | $9519.30 |
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