TPSM831D31 8V-14V Input, 120A + 40A Dual Output PMBus module with AVS and Monitoring |


8V-14V Input, 120A + 40A Dual Output PMBus module with AVS and Monitoring


Sample Availability

Prototype samples are available (PTPSM831D31MOA). Sample now


The TPSM831D31 is a PMBus™-controlled, dual-output, 4-phase power module that combines a high-performance D-CAP+™ controller with four high-efficiency Smart Power Stages, and low-loss inductors, into a rugged, thermally enhanced surface-mount package. The user supplies the input and output capacitors and a few passive components to complete the system. The first output is configured as a 3-phase power stage that can deliver up to 120 A of continuous output current. The second output is a single phase power stage that can deliver up to 40 A of output current.

The PMBus interface provides for converter configuration of each VOUT, UVLO, soft start, overcurrent, and thermal shutdown parameters. The interface provides support for telemetry that can report the actual input voltage, output voltage, output current, and device temperature. The computed input and output power can also be reported. Standard PMBus warning and fault functions are also supported. The device supports PMBus communication speeds up to 1 MHz, with 1.8-V or 3.3-V logic levels, as detailed in Section 4.3 of SMBus Specification V3.0. The module supports a subset of the commands in the PMBus 1.3 specification.


  • Input Voltage Range: 8 V to 14 V
  • Dual Output: 120 A (3-phase) + 40 A (1-phase)
  • Output Voltage Range: 0.25 V to 1.52 V
    • Programmable in 5-mV Steps
    • Differential Remote Sense
    • ±0.5% Vref Accuracy with Remote Sense
  • PMBus Interface
    • Programmable VOUT, UVLO, Fault limits
    • VIN, VOUT, IOUT, Temperature Telemetry
    • Supports up to 1-MHz Bus Speed
    • On-Chip Non-Volatile Configuration Memory
  • Ultra-Fast Transient Response
  • Switching Frequency Range: 350 kHz to 700 kHz
  • 15-mm × 48-mm Footprint and 12-mm Height
  • Efficiencies up to 95%
  • Dual Power Good Outputs
  • Overcurrent, Overvoltage, Overtemperature Protection
  • Operating IC Junction Range: –40°C to 125°C
  • Operating Ambient Range: –40°C to 105°C

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Part number Order Iout (Max) (A) Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Soft start Features Iq (Typ) (mA) Regulated outputs (#) Switching frequency (Max) (kHz) Switching frequency (Min) (kHz) Switching frequency (Typ) (kHz) Iout2 (A) Topology Operating temperature range (C) Duty cycle (Max) (%) Rating Type
TPSM831D31 Order now 120     8     14     0.25     1.52     Adjustable     Adjustable Current Limit
Current Sharing
Dynamic Voltage Scaling
EMI Tested
Light Load Efficiency
Phase Interleaving
Power Good
Remote Sense
Voltage Margining    
8     2     700     350     400     40     Buck
Synchronous Buck    
-40 to 105     25     Catalog     Module