TPS53632 - 3-2-1 Phase D-CAP+ Step-Down Controller | TI
MPN: TPS53632 â Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.27 | $6.27 |
| 10 | $5.64 | $56.40 |
| 100 | $4.89 | $489.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.76 | $3,760.00 |
Drop-in alternatives for TPS53632 â same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool â Select alternative parts for side-by-side comparison:
TPS53632G
â Drop-Inđ Reference alternative (not in catalog)
TPS53632RSMR
â Drop-Inđ Reference alternative (not in catalog)
TPS53632GRSMT
â Drop-Inđ Reference alternative (not in catalog)
TPS53659
â Drop-Inđ Reference alternative (not in catalog)
TPS53667
â Drop-Inđ Reference alternative (not in catalog)
TPS53632 Maximum Ratings & Electrical Characteristics
| Function | Step-Down (Buck) Controller |
| Output Current | Up to 120 A (with external power stages) |
| Input Voltage Range | 4.5 V to 28 V |
| Output Voltage Range | 0.25 V to 5.5 V |
| Number of Phases | 3-2-1 (configurable) |
| Control Architecture | D-CAP+ |
| Interface | I2C Rev 3.0 |
| Switching Frequency | 200 kHz to 1 MHz |
| Package | VQFN-32 (4x4 mm) |
| Operating Temperature Range | -40°C to +125°C |
| RoHS | Compliant |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Synchronous Rectifier | Yes |
| Protection Features | Overcurrent, Overvoltage, Thermal Shutdown |
TPS53632 Pin Configuration
| Pin 1 | VIN â Input supply voltage |
| Pin 2 | GND â Ground |
| Pin 3 | PWM1 â PWM output for phase 1 |
| Pin 4 | PWM2 â PWM output for phase 2 |
| Pin 5 | PWM3 â PWM output for phase 3 |
| Pin 6 | SDA â I2C data line |
| Pin 7 | SCL â I2C clock line |
| Pin 8 | VOUT â Output voltage sense |
| Pin 9 | FB â Feedback input |
| Pin 10 | COMP â Compensation pin |
| Pin 11 | EN â Enable pin |
| Pin 12 | PGOOD â Power good indicator |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS53632 is suitable for 6 applications: Server and Datacenter Power Supplies, Networking Equipment, High-Performance Computing (HPC), Telecom and Storage Systems, FPGA and ASIC Power Supplies, Graphics Processing Units (GPU) Power.
Server and Datacenter Power Supplies
The TPS53632 is ideal for server and datacenter power supplies, delivering high output current (up to 120A) with fast transient response. Its D-CAP+ architecture minimizes output capacitance, saving board space. The I2C interface enables dynamic voltage scaling and telemetry, crucial for energy-efficient data centers. It supports 3-2-1 phase configurations, allowing scalability for CPU and GPU core voltages. According to TI, it provides high efficiency and low output capacitance, making it suitable for high-density computing environments.
Recommended
Networking Equipment
In networking equipment, the TPS53632 provides efficient, high-current power for ASICs and FPGAs. Its wide input voltage range (4.5V to 28V) accommodates various intermediate bus voltages. The I2C interface allows for fine-grained control and monitoring, enabling advanced power management strategies. The device's fast transient response ensures stable operation during burst traffic. Its compact VQFN-32 package is ideal for space-constrained networking hardware.
Recommended
High-Performance Computing (HPC)
The TPS53632 is well-suited for HPC systems requiring precise voltage regulation for CPUs and GPUs. Its D-CAP+ architecture provides fast transient response, essential for dynamic load changes. The I2C interface enables real-time voltage adjustment and current monitoring, supporting adaptive power management. With support for up to 120A output current, it can power the most demanding processors. The device's thermal performance is enhanced by the VQFN package's exposed pad.
Recommended
Telecom and Storage Systems
The TPS53632 is used in telecom and storage systems where efficient, high-current power delivery is critical. Its wide input range supports 12V or 5V rails, and the I2C interface allows for remote monitoring and control. The device's multi-phase capability ensures high efficiency across load ranges. It is designed for low-voltage applications, making it suitable for powering FPGAs and ASICs in base stations and storage arrays. The compact package helps in dense board layouts.
Recommended
FPGA and ASIC Power Supplies
The TPS53632 provides core voltage for FPGAs and ASICs, which require precise voltage regulation and fast transient response. Its D-CAP+ architecture minimizes output capacitance, reducing solution size. The I2C interface allows dynamic voltage scaling, essential for power optimization. With support for 3-2-1 phases, it can deliver high current for large FPGAs. The device operates over -40°C to +125°C, suitable for industrial environments.
Recommended
Graphics Processing Units (GPU) Power
The TPS53632 is ideal for GPU power supplies in gaming and AI applications, delivering high current with fast transient response. Its D-CAP+ architecture ensures stable operation under rapid load changes. The I2C interface enables fine-grained voltage control and telemetry, supporting advanced power management. The device's multi-phase capability allows scalability for high-end GPUs. The compact VQFN package is suitable for graphics cards and AI accelerators.
Recommended
Recommended Products Summary
Engineering reference data for TPS53632 â comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS53632G | TPS53632RSMR | TPS53632GRSMT | TPS53659 | TPS53667 |
|---|---|---|---|---|---|---|
| Package | VQFN-32 (4x4 mm) | VQFN-32 (4x4 mm) | VQFN-32 (4x4 mm) | VQFN-32 (4x4 mm) | VQFN-32 (4x4 mm) | VQFN-32 (4x4 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 4.5V to 28V | 4.5V to 28V (optimized for 48V) | 4.5V to 28V | 4.5V to 28V | 4.5V to 28V | 4.5V to 28V |
| Output Current | Up to 120A | Up to 120A | Up to 120A | Up to 120A | Up to 200A | Up to 200A |
| Number of Phases | 3-2-1 | 3-2-1 | 3-2-1 | 3-2-1 | 6-5-4-3-2-1 | 6-5-4-3-2-1 |
| Control Architecture | D-CAP+ | D-CAP+ | D-CAP+ | D-CAP+ | D-CAP+ | D-CAP+ |
| Interface | I2C Rev 3.0 | I2C Rev 3.0 | I2C Rev 3.0 | I2C Rev 3.0 | I2C Rev 3.0 | I2C Rev 3.0 |
| Switching Frequency | 200 kHz to 1 MHz | 200 kHz to 1 MHz | 200 kHz to 1 MHz | 200 kHz to 1 MHz | 200 kHz to 1 MHz | 200 kHz to 1 MHz |
Key Differentiators
- D-CAP+ architecture for fast transient response (vs TPS53659)
- I2C Rev 3.0 interface for telemetry (vs TPS53667)
- Compact VQFN-32 package (vs TPS53659)
Design Notes
For high-current applications, ensure proper layout with wide, short traces for power paths. Use multiple vias for thermal and electrical connection to the exposed pad. Place input and output capacitors close to the power stage to minimize parasitic inductance. Follow TI's layout guidelines in the datasheet for optimal performance.
The TPS53632 can dissipate significant power at high output currents. Use the exposed pad on the VQFN package soldered to a large copper area for heat sinking. Consider airflow in the system design. Monitor junction temperature to stay within the -40°C to +125°C range.
Ensure the I2C address is correctly configured to avoid conflicts. Use pull-up resistors on SDA and SCL lines. Do not exceed the maximum input voltage of 28V. Properly sequence the enable pin to avoid inrush currents. Verify phase configuration settings before power-up.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
