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.

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

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Approx. Price (US$)
TPS544C20 TPS544B20 TPS544B25 TPS544C25
4.5    4.5    4.5    4.5   
18    18    18    18   
0.6    0.6    0.5    0.5   
5.5    5.5    5.5    5   
30    20    20    30   
1    1    1    1   
250    250    200    200   
1000    1000    1000    1000   
8    8    9.5    7.7   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining   
D-CAP
D-CAP2   
D-CAP
D-CAP2   
Voltage Mode    Voltage Mode   
80    80    80    80   
-40 to 85    -40 to 85    -40 to 125    -40 to 125   
Catalog    Catalog    Catalog    Catalog   
LQFN-CLIP    LQFN-CLIP    LQFN-CLIP    LQFN-CLIP   
3.90 | 1ku    3.55 | 1ku    4.08 | 1ku    4.49 | 1ku   
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WEBENCH® Designer 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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