TPS53676RSLT Texas Instruments (HVQCCN) In Stock
TPS53676RSLT is a multiphase PWM switching controller by Texas Instruments in a 48-pin QFN package. Key specs: 4.5 V to 18 V input, 12 V nominal, voltage-mode PWM control for high-current multi-output rails. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- TPS53676RSLT Datasheet PDF
- Price
- From $5.1300(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Multiphase voltage-mode PWM control reduces output ripple at high currents for sensitive ASIC and FPGA power rails
- 4.5 V to 18 V input range covers 12 V server bus and 5 V logic rails in datacenter and telecom applications
- 48-pin QFN package with comprehensive protection features including OCP, OVP, and thermal shutdown
Applications
TPS53676RSLT is engineered for high-current point-of-load power delivery in servers, networking equipment, and high-performance computing platforms requiring multi-phase regulation. Its 4.5 V to 18 V input and 12 V nominal operation make it well-matched to standard 12 V server bus architectures powering CPUs, GPUs, and memory with currents exceeding 30 A per phase. The 48-pin QFN footprint integrates telemetry and PMBus communication for intelligent power management in datacenter applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N48 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Output Current-Max | 280A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 0.25V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC48,.24SQ,16 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 0.1mA |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2000kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| 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 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage does TPS53676RSLT support and which server or telecom bus architectures is it designed for?
TPS53676RSLT accepts 4.5 V to 18 V with a 12 V nominal input, directly matching the 12 V ATX and CRPS server bus standards used in rack-mounted servers and 12 V intermediate bus converters in telecom equipment. This range also covers 5 V backplane and 5 V USB-PD scenarios, giving designers flexibility across multiple platform architectures.
How does multiphase PWM control in TPS53676RSLT benefit high-current CPU or GPU power delivery?
Multiphase PWM control interleaves switching phases at offset timing, reducing the peak-to-peak output ripple by a factor proportional to the number of phases. For a 4-phase configuration at 300 kHz per phase, effective ripple frequency seen by the CPU core capacitors rises to 1.2 MHz, allowing smaller output capacitance and faster transient response when CPU load steps change by 50 A or more in tens of microseconds.
What protection features are integrated in TPS53676RSLT to safeguard high-value server workloads?
TPS53676RSLT includes overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown to prevent damage during fault conditions in mission-critical server environments. OCP monitors phase currents cycle-by-cycle and can be set via resistor programming to match inductor DCR values between 0.5 mΩ and 5 mΩ, protecting downstream CPUs and memory from sustained overloads.
For a new server board design, how does TPS53676RSLT's 48-pin QFN compare to larger TQFP controllers in terms of board density?
The 48-pin QFN (S-PQCC-N48) package measures approximately 7 mm × 7 mm with an exposed thermal pad, roughly 40% smaller footprint than an equivalent 48-pin TQFP with lead frames, enabling tighter placement near VRM inductors and decoupling capacitors on densely populated server motherboards. The exposed pad also provides a direct thermal path to the PCB, reducing junction-to-board thermal resistance by at least 5°C/W compared to non-pad packages.
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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+ | $7.8200 | $7.82 |
| 250+ | $5.2900 | $1322.50 |
| 500+ | $5.2200 | $2610.00 |
| 1000+ | $5.1300 | $5130.00 |
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