TPS53667 6-Phase, D-CAP+ Step-Down Driverless Buck Controller with NVM and PMBus Interface for AVS | TI.com

TPS53667 (ACTIVE)

6-Phase, D-CAP+ Step-Down Driverless Buck Controller with NVM and PMBus Interface for AVS

6-Phase, D-CAP+ Step-Down Driverless Buck Controller with NVM and PMBus Interface for AVS - TPS53667
 

Recommended alternative parts

  • TPS53681  -  Dual-Channel 6+2/5+3 D-CAP+TM Multiphase Step-Down Controller with PMBus and NVM

Description

The TPS53667 is a high-current, multi-phase, step-down controller. The device offers built-in non volatile memory (NVM) and PMBus interface. It is compatible with the NexFET power stages (CSD9549x). The TPS53667 provides 8-bit BOOT voltage selection covering output voltage from 0.5 V to 2.5 V, with steps as small as 5 mV, which is ideal for high current application with accurate output voltage setting. Advanced control features such as D-CAP+ architecture with undershoot reduction (USR) and overshoot reduction (OSR) provide fast transient response, lowest output capacitance, and high efficiency. The TPS53667 also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at light loads. In addition, the TPS53667 supports the PMBus communication interface with systems for telemetry of voltage, current, power, temperature, and fault conditions. Some of the configurations can be programmed by pinstrap or PMBus and stored in non-volatile memory to minimize the external component count.

The TPS53667 is offered in a space saving, thermally enhanced 40-pin QFN package and is rated to operate from –40°C to 125°C.

For all available packages, see the orderable addendum at the

Features

  • 8-bit Selectable BOOT Voltage via Pinstrap or NVM: 0.5 V to 2.5 V (down to 5-mV Step)
  • 1-, 2-, 3-, 4-, 5-, or 6- Phase Operation
  • PMBus System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
  • 1.8-V and 3.3-V PMBus Bias Compatible
  • Fault Reporting: Output Voltage, Output Current, and Temperature
  • Configurable with Non-Volatile Memory (NVM) or Resistor Pinstrap
  • 16 Levels of Programmable Per-Phase OCL with Pinstrap or NVM
  • Fast Transient with DCAP+Control
  • Optimized Efficiency at Light and Heavy Loads
  • Support Pre-Bias Startup
  • Phase Current Imbalance Detection and Reporting
  • 8 Independent Levels of Overshoot Reduction (OSR) and Undershoot Reduction (USR)
  • Driverless Configuration for Efficient High-Frequency Switching
  • Compatible with CSD9549x NexFET Power Stages
  • Accurate, Adjustable Voltage Positioning
  • 300-kHz to 1-MHz Frequency Selections with Closed-loop Frequency Control
  • Patented AutoBalance Phase Balancing
  • Uses TI’s Fusion Digital Power Designer GUI
  • Dynamic Phase Shedding with Programmable Current Threshold
  • Conversion Voltage Range: 4.5 V to 17 V
  • Small, 6 mm × 6 mm, 40-Pin, QFN, PowerPAD Package

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Parametrics Compare all products in Buck Controller (External Switch)

 
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
Control Mode
TPS53667 TPS40422 TPS40425 TPS40428 TPS53647 TPS53681
4.5     4.5     4.5     4.5     4.5     4.5    
17     20     20     20     17     17    
0.5     0.6     0.6     0.6     0.5     0.25    
2.5     5.6     5     5     2.5     2.8125    
420     60     40     40     240     300    
1     2     2     2     1     2    
6     2     2     2     4     8    
300     200     200     200     300     300    
1000     1000     1500     1500     1000     1000    
6.1     18     18     18     8     13    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining    
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Multiple Outputs
PMBus
Phase Interleaving
Remote Sense    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
PMBus
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Output Discharge
PMBus
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Multiple Outputs
PMBus
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining    
50     90     46     46     50     50    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
WQFN     VQFN
WQFN    
VQFN     VQFN     WQFN     WQFN    
D-CAP+     Voltage Mode     Voltage Mode     Voltage Mode     D-CAP+     D-CAP+    
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WEBENCH® Power Designer is now even easier to use. Learn more.

WEBENCH® Designer TPS53667

  Min   Max Range
Vin  V 4.5 to 16.0V
Vout  V 0.5 to 2.5V
Iout  A ≤ 180A
Ambient Temp  °C -40 to 125°C


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