4.5-18V 30A SWIFT™ with PMBus™ Programmability and Voltage, Current and Temp Monitoring - TPS544C20

TPS544C20 (ACTIVE)

4.5-18V 30A SWIFT™ with PMBus™ Programmability and Voltage, Current and Temp Monitoring

Description

The TPS544B20 and TPS544C20 devices are PMBus compatible, non-isolated DC-DC Integrated FET converters, capable of high-frequency operation and delivering 20-A , or 30-A current output from a 5 mm × 7 mm package, enabling high-power density and fast transient performance with minimal PCB area. The PMBus interface provides for converter configuration as well as monitoring of key parameters including output voltage, current and an optional external temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions and reduced inductor and filter capacitor sizes. Response to fault conditions can be set to either restart or latch off depending on system requirements.

For all available packages, see the orderable addendum at the

Features

  • PMBus-Enabled Converters: 20 A, 30 A
  • 4.5-V to 18-V input, 0.6-V to 5.5-V Output
  • 5 mm × 7 mm LQFN Package with 0.5-mm Pitch
  • Single Thermal Pad
  • Integrated 4.5-mΩ and 2.0-mΩ Stacked NexFET Power Stage
  • 600-mV, 0.5% Reference
  • Lossless, Low-Side MOSFET Current Sensing
  • Selectable D-CAP and D-CAP2 Mode Control
  • Differential Remote Sensing
  • Monotonic Start-Up into Pre-Biased Output
  • Output Voltage Margin and Trim
  • Output Voltage and Output Current Reporting
  • External Temperature Monitoring with 2N3904
  • Programmable via PMBus
    • Overcurrent Protection
    • UVLO, Soft-Start
    • PGOOD, OV, UV, OT Levels
    • Fault Responses
    • Turn-On and Turn-Off Delays
  • Thermal Shutdown
  • Pin Compatible 20-A, 30-A Converters

View more

Parametrics Compare all products in Step-Down (Buck) Converter

 
Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Topology
Switching Frequency (Max) (kHz)
Switch Current Limit (Typ) (A)
Iq (Typ) (mA)
Soft Start
Compensation
Special Features
Brand
Control Mode
Preset Vout (V)
Vref Accuracy (Typ) (%)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS544C20 TPS544B25 TPS544C25
1     1      
4.5     4.5      
18     18      
0.6     0.5      
5.5     5.5      
30     20      
Buck     Buck      
1000     1000      
  24      
8     9.5      
Adjustable     Adjustable      
Not Needed     External      
Adjustable Current Limit
Adjustable UVLO
Dynamic Voltage Scaling
Enable
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Telemetry
Voltage Margining    
Adjustable Current Limit
Adjustable UVLO
Dynamic Voltage Scaling
Enable
Frequency Synchronization
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Telemetry
Voltage Margining    
 
SWIFT     SWIFT      
D-CAP
D-CAP2    
Voltage Mode      
  0.95      
0.5     1      
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 125    
40LQFN-CLIP     40LQFN-CLIP     40LQFN-CLIP    
3.90 | 1ku       4.49 | 1ku    
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WEBENCH® TPS544C20
    Min   Max   Range  
  Vin V 4.5 to 18.0V  
  Vout V 0.6 to 5.5V  
  Iout A ≤ 30A  
  Ambient Temp °C -40 to 150°C  
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