TPS51632-Q1 NVIDIA Tegra 2.5V to 24V, 3/2/1-phase step-down controller for automotive applications |

TPS51632-Q1 (ACTIVE) NVIDIA Tegra 2.5V to 24V, 3/2/1-phase step-down controller for automotive applications



The TPS51632-Q1 device is a driverless step-down controller with serial control. Advanced features such as D-CAP+ architecture provide fast transient response, lowest output capacitance, and high efficiency. The TPS51632-Q1 device supports both I2C and DVFS interfaces for dynamic control of the output voltage and current monitor telemetry. It also has dynamic phase add and drop control and enters single-phase, discontinuous-current-mode operation to maximize light-load efficiency.

The TPS51632-Q1 device supports Tegra requirements for PGOOD interrupts for MaxVID violations and near OCP conditions. This interrupt behavior is programmable via I2C. Adjustable control of VCORE slew rate and voltage positioning round out the features. The TPS51604-Q1 driver is designed specifically for this generation of controllers. The TPS51632-Q1 device is packaged in a space saving, thermally-enhanced 32-pin VQFN and is rated to


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
    • Device Human Body Model ESD Classification Level H2
    • Device Charged Device Model ESD Classification Level C3B
  • Selectable Phase Count: 3, 2, or 1
  • Dynamic Voltage and Frequency Scaling (DVFS) Digital Interface
  • I2C Interface for VID Control and Telemetry With Eight Device Addresses
  • D-CAP+ Control for Fast Transient Response
  • Dynamic Phase Add and Drop Operation
  • Switching Frequency: 300 kHz to 1 MHz
  • Digital Current Monitor
  • 7-Bit DAC Output Range: 0.50-V to 1.52-V
  • Optimized Efficiency at Light and Heavy Loads
  • Accurate, Adjustable Voltage Positioning, or Zero Slope Load-Line
  • Patented AutoBalance Phase Balancing
  • Selectable 8-Level Current Limit
  • 2.5-V to 24-V Conversion Voltage Range
  • 4-mm x 4-mm, 32-Pin, VQFN Power-Pad Package


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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Number of Phases Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Control mode
TPS51632-Q1 Order now 2.5     24     0.5     1.52     120     1     3     300     1000     5.5     Adjustable Current Limit
Dynamic Voltage Scaling
Light Load Efficiency
Output Discharge
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
51     -40 to 125     Automotive     VQFN | 32     Controller     D-CAP+    
TPS51632 Order now 2.5     24     0.5     1.52     50     1     3     300     1000     6     I2C     51     -10 to 105     Catalog     VQFN | 32     Controller     D-CAP+