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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
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+ | $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 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”