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Texas Instruments CSD95472Q5MCT
- Part No.:
- CSD95472Q5MCT
- Manufacturer:
- Texas Instruments
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 12-PowerTFDFN
- Datasheet:
-
CSD95472Q5MCT.pdf
- Description:
- IC SYNC BUCK 60A 12VSON
- Quantity:
- Payment:
- Shipping:
Inventory:210
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Product details
Overview
CSD95472Q5MCT from Texas Instruments is a synchronous buck NexFET™ Smart Power Stage integrating driver IC and dual Power MOSFETs in a single 12-pin VSON-CLIP package. It delivers 60-A continuous output current at 1.2 V, achieves 94.4% system efficiency and 2.3 W power loss at 30 A, and supports up to 1.25 MHz switching frequency for high-density POL DC-DC converters in CPU/GPU VRMs.
For engineers reviewing the CSD95472Q5MCT datasheet, CSD95472Q5MCT pinout, CSD95472Q5MCT application, or CSD95472Q5MCT equivalent, key selection criteria include its temperature-compensated bidirectional current sense, analog temperature output (600 mV at 0°C), tri-state PWM compatibility (3.3 V/5 V), integrated bootstrap diode, and DualCool™ thermal performance in a 5 mm × 6 mm footprint.
Technical Context
The CSD95472Q5MCT implements a high-speed synchronous buck topology with integrated gate driver, high-side and low-side NexFET™ MOSFETs, and precision sensing circuitry. Its architecture supports forced continuous conduction mode (FCCM) and diode emulation mode via dedicated FCCM pin control, enabling optimized light-load efficiency.
Current sensing uses differential IOUT/REFIN inputs with temperature compensation, while thermal monitoring employs an analog TAO output (600 mV at 0°C) with built-in ORing diode for multiphase temperature reporting. The device features shoot-through protection via optimized deadtime and internal 100 kΩ ENABLE pulldown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 60 A at VIN = 12 V, VOUT = 1.2 V, fSW = 500 kHz - enables single-phase support for high-current CPU core rails |
| Peak Output Current | 90 A for tp = 50 µs - sustains transient load steps without dropout in VR applications |
| System Efficiency | 94.4% at 1.2 V / 30 A - reduces thermal load and improves power density in compact VRMs |
| Power Loss | 2.3 W at 30 A - directly quantifies thermal dissipation for heatsink and layout planning |
| Switching Frequency | Up to 1.25 MHz - allows smaller output inductors and faster transient response |
| Thermal Shutdown Threshold | 150 °C junction temperature - protects against sustained overload or cooling failure |
| Temperature Sensing | Analog output: 600 mV at 0°C, linear slope - enables precise real-time die temperature monitoring without external sensor |
Pinout & Package
Package: VSON-CLIP (DMC), 12-pin, 5 mm × 6 mm outline with exposed thermal pad and DualCool™ construction for enhanced top-side heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IOUT | Current sense amplifier output | Voltage proportional to phase current; used with REFIN for closed-loop current monitoring |
| REFIN | Current sense reference input | External reference for bidirectional current sensing amplifier; sets zero-current offset |
| ENABLE | Global enable control | Logic HIGH enables operation; internal 100 kΩ pulldown ensures safe default-OFF state |
| PGND | Power ground | Dual connection points (pins 4 & 13) minimize ground loop inductance for stable switching |
| VDD | Gate driver supply | 4.5–5.5 V input powering internal logic and gate drivers; decoupling critical for noise immunity |
| VSW | Switch node | Connects HS source and LS drain; ties to output inductor; high dv/dt node requiring tight layout |
| VIN | Main input supply | 12 V nominal input; requires local ceramic decoupling per TI land pattern guidelines |
| BOOT_R | Bootstrap return | Internally connected to VSW; completes bootstrap capacitor charging path for HS FET drive |
| BOOT | Bootstrap capacitor terminal | Accepts ≥0.1 µF X7R ceramic cap; integrated bootstrap diode eliminates external component |
| FCCM | Mode select | LOW enables diode emulation; HIGH forces continuous conduction; internal 5 µA pullup to 3.3 V |
| TAO/FAULT | Temp analog output / fault indicator | Reports die temp linearly; pulled to 3.3 V during thermal shutdown; ORable across multiphase stacks |
| PWM | Tri-state control input | Logic HIGH/LOW controls HS/LS FET states; High-Z disables both FETs after hold-off time t3HT |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Driver + Dual MOSFETs | Eliminates discrete gate driver design effort and layout complexity while ensuring optimal timing alignment |
| Temperature-Compensated Current Sense | Enables accurate phase current measurement across –40°C to 125°C ambient without calibration drift |
| DualCool™ Packaging | Exposes die top surface for direct heatsink contact, reducing RθJC(top) to 5°C/W and improving thermal headroom |
| Ultralow Inductance Layout | Minimizes parasitic ringing and EMI through optimized internal power loop geometry and clip-bond construction |
| System-Optimized PCB Footprint | Matches TI-recommended land pattern and stencil openings to ensure manufacturability and thermal reliability |
Applications
| CPU Voltage Regulator Module (VRM) | GPU Core Power Delivery |
|---|---|
Use Scenario: Provides dynamic core voltage (VCORE) to modern x86 processors under rapidly changing load conditions (e.g., burst workloads). IC Role / Device Role / Timing Role: Synchronous buck power stage controlled by multiphase controller (e.g., TPS53661) via PWM and FCCM signals. Use Value: 60-A continuous rating and 90-A peak capability meet Intel VR13/VR14 transient requirements; 94.4% efficiency at 30 A reduces board-level thermal load. | Use Scenario: Delivers high-current, low-voltage power to discrete GPU cores in gaming or AI acceleration cards. IC Role / Device Role / Timing Role: Single-phase segment of multi-phase VR delivering 1.0–1.2 V at up to 60 A per phase. Use Value: DualCool™ package enables direct heatsink mounting on graphics card PCBs; ultralow inductance minimizes voltage droop during 100+ A transient steps. |
| Memory Subsystem VR | High-Density Server POL Converter |
Use Scenario: Powers DDR4/DDR5 memory modules with tight voltage tolerance (±3%) and fast transient response. IC Role / Device Role / Timing Role: Buck stage in point-of-load converter regulated by PMBus/I²C controller; TAO output feeds system thermal management. Use Value: Analog temperature output (600 mV at 0°C) provides real-time die temp feedback for memory thermal throttling algorithms. | Use Scenario: Supplies 1.8 V or 3.3 V to FPGA, ASIC, or network processor subsystems in 1U server blades. IC Role / Device Role / Timing Role: High-frequency (1.25 MHz) power stage enabling <1 µH inductors and compact 4-layer PCB designs. Use Value: 5 mm × 6 mm footprint and system-optimized land pattern reduce layout area by >25% vs. discrete solutions while maintaining 60-A capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck power stage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CSD95490Q5MC | Same 12-pin VSON-CLIP package; rated for 70-A continuous current; higher RDS(on) on LS FET (0.48 mΩ vs. 0.42 mΩ) | Better suited for ultra-high-current single-phase VRs where 70-A rating offsets slightly lower efficiency | Select when peak current demand exceeds 60 A and board space permits same footprint |
| ISL99227BIRZ | 12-pin PQFN; 60-A rating; integrated current sense but no analog TAO output; supports 1.5 MHz max fSW | Lacks die temperature reporting; requires external temp monitoring for thermal-aware multiphase systems | Choose when cost sensitivity outweighs need for integrated thermal telemetry and ORing capability |
Compared with CSD95472Q5MCT, CSD95490Q5MC offers higher current headroom at identical footprint but trades 0.6% system efficiency at 30 A; ISL99227BIRZ matches current rating and frequency but omits analog temperature output, requiring additional sensing for thermal-aware VRM designs.
Availability
CSD95472Q5MCT is available at Aetrix Electronics and suitable for CPU voltage regulation, GPU power delivery, memory VRMs, and high-density server POL converters requiring stable component supply and long-term industrial lifecycle support.
Supply support for CSD95472Q5MCT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and power management technologies, with over 90 years of innovation in high-reliability power conversion solutions.
The CSD95472Q5MCT belongs to TI's NexFET™ Smart Power Stage product line, engineered specifically for high-efficiency, high-current, high-frequency point-of-load applications in computing and datacenter infrastructure.
FAQ
What is the maximum continuous output current rating for the CSD95472Q5MCT?
The CSD95472Q5MCT is rated for 60-A continuous output current under specified conditions: VIN = 12 V, VOUT = 1.2 V, fSW = 500 kHz, LOUT = 0.225 µH, and TA = 25°C. This rating assumes proper PCB thermal design per TI's recommended land pattern and adequate airflow or heatsinking. Derating applies at higher ambient temperatures or elevated switching frequencies.
Does the CSD95472Q5MCT support both forced continuous conduction mode (FCCM) and diode emulation?
Yes, the CSD95472Q5MCT supports both modes via the FCCM pin. When FCCM is held LOW, the device enters diode emulation mode for improved light-load efficiency. When FCCM is HIGH (or left floating, due to internal 5 µA pullup), it operates in forced continuous conduction mode. This dual-mode capability is confirmed in the SLPS599 datasheet Section 5 and enables flexible optimization across load ranges in the CSD95472Q5MCT design.
How does the TAO/FAULT pin function in multiphase configurations using multiple CSD95472Q5MCT units?
In multiphase systems, the TAO/FAULT pins of multiple CSD95472Q5MCT devices are wired together with a single pullup resistor. Due to the integrated ORing diode, only the highest die temperature among all phases pulls the shared line low-enabling system-level thermal monitoring with one ADC input. During thermal shutdown, the CSD95472Q5MCT pulls TAO to 3.3 V, signaling fault condition to the controller. This behavior is explicitly documented in the CSD95472Q5MCT datasheet Pin Functions table.
What is the purpose of the REFIN pin on the CSD95472Q5MCT, and how must it be configured?
The REFIN pin serves as the reference input for the bidirectional current sense amplifier. It must be connected to a stable, low-noise voltage source (typically 0 V or a small positive bias) to set the zero-current offset point. When used differentially with IOUT, the voltage difference (VIOUT – VREFIN) is proportional to phase current magnitude and direction. TI recommends bypassing REFIN to PGND with a 1 nF capacitor to suppress noise coupling into the sensitive analog sensing path of the CSD95472Q5MCT.
Is the CSD95472Q5MCT pin-compatible with other devices in the CSD9547x family?
Yes, the CSD95472Q5MCT shares identical pinout, package (VSON-CLIP, 12-pin), and footprint with CSD95472Q5MC, CSD95490Q5MC, and CSD95491Q5MC. All devices use the same mechanical drawing and land pattern per TI's SLPS599 datasheet Section 9.2. This allows drop-in replacement within the same family for current rating or efficiency trade-offs-though firmware or layout tuning may be needed to optimize performance for each variant's specific RDS(on) and thermal characteristics.
CSD95472Q5MCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- NexFET™
- Package/Case:
- 12-PowerTFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- -
- Applications:
- Synchronous Buck Converters
- Interface:
- PWM
- Load Type:
- Inductive
- Technology:
- Power MOSFET
- Rds On (Typ):
- -
- Current - Output / Channel:
- 60A
- Current - Peak Output:
- 90A
- Voltage - Supply:
- 4.5V ~ 5.5V
- Voltage - Load:
- 4.5V ~ 16V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Bootstrap Circuit, Diode Emulation, Status Flag
- Fault Protection:
- Current Limiting, Over Temperature
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-VSON (5x6)
CSD95472Q5MCT FAQ
1.How can I place an order for CSD95472Q5MCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CSD95472Q5MCT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CSD95472Q5MCT reliable?
The price and inventory of CSD95472Q5MCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CSD95472Q5MCT is usually 5 days.
3.What payment methods are accepted for CSD95472Q5MCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CSD95472Q5MCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CSD95472Q5MCT?
CSD95472Q5MCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CSD95472Q5MCT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CSD95472Q5MCT?
For technical support, including CSD95472Q5MCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CSD95472Q5MCT requirements.
6.How does Aetrix verify that CSD95472Q5MCT is sourced from the original manufacturer or authorized distributors?
All CSD95472Q5MCT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CSD95472Q5MCT meets industry standards.
7.What is the process for return or replacement of CSD95472Q5MCT?
All CSD95472Q5MCT units undergo pre-shipment inspection (PSI). If there is an issue with CSD95472Q5MCT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CSD95472Q5MCT part is unused and in its original packaging.
Return procedure for CSD95472Q5MCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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