TPSM82866C - 6A Step-Down Power Module with I2C | TI
MPN: TPSM82866C ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.5 | $5.50 |
| 10 | $4.95 | $49.50 |
| 100 | $4.4 | $440.00 |
| 500 | $3.96 | $1,980.00 |
| 1,000 | $3.52 | $3,520.00 |
Drop-in alternatives for TPSM82866C — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPSM82866A
✅ Drop-In✓ In Stock
$2.88 / Unit
View Datasheet →TPSM82816
✅ Drop-In✓ In Stock
$2.88 / Unit
View Datasheet →TPSM82864A
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82864C
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82866B
✅ Drop-In📋 Reference alternative (not in catalog)
TPSM82866C Maximum Ratings & Electrical Characteristics
| Input Voltage Range | 2.4 V to 5.5 V |
| Output Voltage Range | 0.8 V to 3.35 V |
| Output Current | 6 A |
| Switching Frequency | [DATA_NEEDED: switching frequency] |
| Integrated Inductor | 200 nH shielded |
| Interface | I2C |
| Package | MagPack (RCF) 2.3 mm x 3 mm |
| Mounting Type | Surface Mount |
| Efficiency | [DATA_NEEDED: efficiency at VIN=5V] |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] |
| Power Density | ~1 A/mm² |
| EMI Performance | Shielded inductor for low EMI |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| AEC-Q100 | Not applicable |
TPSM82866C Pin Configuration
| Pin 1 | VIN — Input voltage supply |
| Pin 2 | GND — Ground |
| Pin 3 | VOUT — Output voltage |
| Pin 4 | SDA — I2C data line |
| Pin 5 | SCL — I2C clock line |
| Pin 6 | EN — Enable pin |
| Pin 7 | VSET — Voltage set pin |
| Pin 8 | PG — 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
TPSM82866C is suitable for 6 applications: FPGA Power Supply, ASIC Power Supply, Server and Networking Equipment, Industrial Automation, Telecommunications, Test and Measurement.
FPGA Power Supply
The TPSM82866C provides a compact, high-current solution for FPGA core and I/O rails. With 6A output and adjustable voltage down to 0.8V, it meets the low-voltage, high-current demands of modern FPGAs. The I2C interface enables dynamic voltage scaling for power optimization. Its small footprint saves board space, and the integrated inductor reduces EMI, which is critical in high-speed digital systems. The module's high efficiency minimizes heat generation, simplifying thermal management in dense FPGA designs.
Recommended
ASIC Power Supply
ASICs often require multiple low-voltage, high-current rails. The TPSM82866C's 6A capability and adjustable output from 0.8V to 3.35V make it suitable for core and I/O supplies. The I2C interface allows precise voltage setting and monitoring, which is essential for ASIC power sequencing. The module's small size and integrated inductor reduce board space and simplify layout, while its high efficiency reduces thermal stress. This makes it ideal for networking and computing applications where space and reliability are paramount.
Recommended
Server and Networking Equipment
In servers and networking gear, space is at a premium and power density is critical. The TPSM82866C delivers 6A in a 2.3mm x 3mm package, achieving nearly 1A per mm². This high power density allows designers to place power modules close to loads, reducing IR drops and improving transient response. The I2C interface enables telemetry for health monitoring and dynamic voltage scaling, which can reduce overall system power consumption. The module's integrated inductor and shielded design help meet EMI regulations in dense boards.
Recommended
Industrial Automation
Industrial systems often require robust, efficient power supplies for microcontrollers, FPGAs, and sensors. The TPSM82866C's wide input range (2.4V to 5.5V) accommodates various supply rails, and its adjustable output provides flexibility. The module's high efficiency reduces heat, which is important in sealed enclosures. The I2C interface allows remote monitoring and control, enabling predictive maintenance. Its compact size and integrated inductor simplify PCB design, reducing assembly time and cost.
Recommended
Telecommunications
Telecom equipment requires reliable, high-density power conversion. The TPSM82866C's 6A output and small footprint make it ideal for powering line cards and base stations. The I2C interface supports dynamic voltage scaling, which can reduce power consumption during low traffic periods. The module's integrated inductor and shielded design minimize EMI, which is crucial in RF-sensitive environments. Its wide input range allows operation from 3.3V or 5V rails, simplifying system design.
Recommended
Test and Measurement
In test equipment, clean and stable power is essential for accurate measurements. The TPSM82866C provides low-noise output due to its integrated inductor and synchronous buck topology. The I2C interface allows precise voltage setting and monitoring, which is useful for calibration and automated test systems. The module's small size enables dense board layouts, and its high efficiency reduces thermal drift. This makes it suitable for powering ADCs, DACs, and precision analog circuits.
Recommended
Recommended Products Summary
Engineering reference data for TPSM82866C — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPSM82866A | TPSM82816 | TPSM82864A |
|---|---|---|---|---|
| Package | MagPack (RCF) 2.3 mm x 3 mm | MagPack (RCF) 2.3 mm x 3 mm | MagPack (RCF) 2.3 mm x 3 mm | MagPack (RCF) 2.3 mm x 3 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Current | 6 A | 6 A | 6 A | 4 A |
| Output Voltage Range | 0.8 V to 3.35 V | 0.4 V to 1.675 V | [DATA_NEEDED] | [DATA_NEEDED] |
| Input Voltage Range | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V |
| I2C Interface | Yes | Yes | Yes | Yes |
| Integrated Inductor | 200 nH shielded | 200 nH shielded | 200 nH shielded | 200 nH shielded |
| Pin-to-Pin Compatible | Yes | Yes | Yes | Yes |
Key Differentiators
- Ultra-small package with high power density (vs TPSM82816)
- Integrated I2C interface for telemetry and control (vs TPSM82864A)
- Pin-to-pin compatible with 4A and 6A variants (vs TPSM82864A)
Design Notes
Place input and output capacitors close to the module pins to minimize parasitic inductance. Use low-ESR ceramic capacitors, typically 10uF for input and 22uF for output, to ensure stability and transient performance. The integrated inductor reduces layout complexity, but proper grounding is essential for EMI performance.
Although the module is efficient, at 6A output and high input-to-output differential, power dissipation can be significant. Ensure adequate copper area on the PCB for heat spreading. The MagPack package has a thermal pad; connect it to a large ground plane to improve thermal performance. Consider airflow in the system design.
Do not exceed the absolute maximum input voltage of 5.5V. Ensure the I2C address is correctly configured to avoid conflicts on the bus. When using the I2C interface for voltage scaling, ensure the output capacitors are sized to handle the transient response. Also, verify the enable pin logic level matches the system's control voltage.
Compliance Information
RoHS and REACH compliant per TI product page. Not AEC-Q100 qualified.
