TPS53631RSBT Texas Instruments (HVQCCN) In Stock
TPS53631RSBT is a single-output synchronous buck switching controller by Texas Instruments. Key specs: 4.5 V to 20 V input range, 1-phase control, 40-pin VQFN package with integrated MOSFET drivers. From stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TPS53631RSBT Datasheet PDF
- Price
- From $3.8700(MOQ 1)
- Temp Range
- -10.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS53631RSBT?
- Wide 4.5 V to 20 V input voltage range covers a broad array of industrial and server power rails
- Single-output synchronous buck topology delivers high efficiency across light and heavy load conditions
- 40-pin S-PQCC compact package reduces PCB footprint in space-constrained power supply designs
- RoHS-compliant lead-free construction meets global environmental regulations for modern electronics manufacturing
What is TPS53631RSBT used for?
The TPS53631RSBT is well suited for single-phase DC-DC point-of-load converters in server motherboards, network switches, and telecom equipment where the input bus ranges from 4.5 V to 20 V. Its synchronous buck architecture provides high conversion efficiency, making it attractive for FPGA and processor core power stages that demand tight load transient response. The compact 40-pin VQFN footprint also benefits space-constrained embedded computing modules.
What are the specifications of TPS53631RSBT?
| Pbfree Code | Yes |
| Date Of Intro | 2019-07-23 |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | S-PQCC-N40 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 120A |
| Output Voltage-Max | 2.5V |
| Output Voltage-Min | 0.5V |
| 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 | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | OTHER |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.4mm |
| 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 | Philippines |
Where can I find the TPS53631RSBT datasheet?
TPS53631RSBT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS53631RSBT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the TPS53631RSBT support, and how does that affect power rail selection for server designs?
The TPS53631RSBT accepts an input voltage from 4.5 V to 20 V, covering both 12 V and 19 V server bus rails without requiring an additional pre-regulator stage. This wide range simplifies system architecture for dual-voltage server platforms and reduces component count by at least 2 parts in typical ATX-based designs.
Which package does the TPS53631RSBT use, and what thermal considerations apply for a high-current buck converter layout?
The TPS53631RSBT uses a 40-pin S-PQCC (VQFN) package measuring approximately 5 mm × 5 mm with an exposed thermal pad. For a 20 A output stage, the thermal pad should be connected to a copper pour with at least 8 vias to the inner ground plane, keeping junction temperature below 125 °C at an ambient of 55 °C.
How does the TPS53631RSBT compare to a discrete gate-driver plus external MOSFET solution for a 12 V-to-1 V conversion at 15 A?
Integrating the switching controller and gate drivers in a single 40-pin VQFN reduces the BOM by approximately 6 passive and active components compared with a discrete approach at 15 A load. The TPS53631RSBT also provides programmable switching frequency and built-in over-current protection, shortening design cycle by several days versus tuning external driver deadtimes manually.
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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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| Qty. | Unit Price | Ext. Price |
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| 1+ | $7.8600 | $7.86 |
| 10+ | $6.0800 | $60.80 |
| 25+ | $5.6340 | $140.85 |
| 56+ | $5.3800 | $301.28 |
| 250+ | $4.7800 | $1195.00 |
| 500+ | $3.8700 | $1935.00 |
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