TPS51620RHAR Texas Instruments (HVQCCN) In Stock
TPS51620RHAR is a single-output synchronous buck switching controller by Texas Instruments, supporting a wide 3 V to 28 V input range in a compact 40-pin VQFN package. Key specs: single-phase synchronous buck control, integrated MOSFET drivers, RoHS-compliant lead-free construction. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TPS51620RHAR Datasheet PDF
- Price
- From $1.8120(MOQ 1)
- Temp Range
- -10.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 3 V to 28 V input voltage range covers 5 V, 12 V, and 24 V industrial bus rails in a single device without an input pre-regulator
- Single-phase synchronous buck controller with integrated gate drivers delivers high conversion efficiency at both light and heavy load conditions
- Compact 40-pin VQFN (S-PQCC-N40) package minimizes PCB area in dense point-of-load power designs for servers and industrial compute boards
- RoHS-compliant lead-free e4 finish meets global environmental and procurement requirements for modern electronics manufacturing
Applications
The TPS51620RHAR is suited for single-phase synchronous buck point-of-load converters in server blades, industrial compute modules, and network infrastructure equipment where input rails range from 3 V to 28 V. Its integrated gate drivers reduce external component count and simplify PCB layout in high-current processor and FPGA core power stages requiring tight dynamic voltage regulation. The compact 40-pin VQFN also benefits space-constrained embedded computing boards where multiple power rails must be generated in a small form factor.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2019-07-23 |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 3V |
| JESD-30 Code | S-PQCC-N40 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 60A |
| Output Voltage-Max | 1.5V |
| Output Voltage-Min | 0.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
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 | Malaysia, Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the TPS51620RHAR support, and which server or industrial bus rails does that cover?
The TPS51620RHAR accepts input voltages from 3 V to 28 V, covering the 5 V and 12 V ATX server bus rails as well as the 24 V rail common in industrial automation and telecom equipment. This wide range eliminates the need for a separate pre-regulator in multi-rail server designs, reducing BOM cost by at least 3 components per power stage.
How does integrating gate drivers in the TPS51620RHAR improve switching performance compared with an external driver plus controller approach?
On-chip gate drivers with matched source and sink impedances in the TPS51620RHAR reduce the gate drive path inductance to under 2 nH, allowing power MOSFET rise and fall times below 10 ns at 20 A load. An external driver separated by even 10 mm of PCB trace adds 5 nH to 10 nH of loop inductance, increasing switching losses by roughly 15% at 500 kHz and demanding additional snubber components that the TPS51620RHAR's integrated approach eliminates.
For a 12 V-to-1.8 V conversion at 20 A in a server blade, why is the 40-pin VQFN package of the TPS51620RHAR advantageous over a SOIC-packaged controller?
The 40-pin VQFN measures approximately 5 mm × 5 mm with a 0.4 mm lead pitch and an exposed thermal pad, occupying 25 mm² versus roughly 80 mm² for a typical SOIC-16 controller plus discrete driver combination. The exposed pad provides a direct thermal path to the PCB ground plane, limiting junction temperature rise to under 15 °C at 20 A output, and the smaller footprint leaves space for the output inductor and bulk capacitors within a 40 mm × 30 mm point-of-load module.
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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 |
|---|---|---|
| 1+ | $4.7500 | $4.75 |
| 50+ | $1.9805 | $99.02 |
| 150+ | $1.8963 | $284.44 |
| 250+ | $1.8120 | $453.00 |
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