TPS543C20 4-14Vin 40A Stackable Synchronous Step-down SWIFT™ Converter w/ Adaptive Internal Compensation | TI.com

TPS543C20 (ACTIVE)

4-14Vin 40A Stackable Synchronous Step-down SWIFT™ Converter w/ Adaptive Internal Compensation

4-14Vin 40A Stackable Synchronous Step-down SWIFT™ Converter w/ Adaptive Internal Compensation - TPS543C20
 

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Description

The TPS543C20 employs an internally compensated emulated peak-current-mode control, with a clock synchronizable, fixed-frequency modulator for EMI-sensitive POL. The internal integrator and directly amplifying ramp tracking loop eliminate the need for external compensation over a wide range of frequencies thereby making the system design flexible, dense, and simple. Optional API and body braking help improve transient performance by significantly reducing undershoot and overshoot, respectively. Integrated NexFET™ MOSFETs with low-loss switching facilitate high efficiency and deliver up to 40 A in a 5-mm × 7-mm PowerStack™ package with a layout friendly thermal pad. Two TPS543C20 devices can be stacked together to provide up to 80-A point-of-load.

Features

  • Internally-Compensated Advanced Current Mode Control 40-A POL
  • Input Voltage Range: 4 V to 14 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated 3/0.9-mΩ Stacked NexFET™ Power Stage With Lossless Low-Side Current Sensing
  • Fixed Frequency - Synchronization to an External Clock and/or Sync Out
  • Pin Strapping Programmable Switching Frequency
    • 300 kHz to 2 MHz for Standalone
    • 300 kHz to 1 MHz for Stackable
  • Stack 2× for up to 80 A With Current Share, Voltage Share, and CLK Sync
  • Pin Strapping Programmable Reference from 0.6 V to 1.1 V With 0.5% Accuracy
  • Differential Remote Sensing
  • Safe Start-Up into Prebiased Output
  • High-Accuracy Hiccup Current Limit
  • Asynchronous Pulse Injection (API) and Body Braking
  • 40-pin, 5-mm × 7-mm LQFN Package with 0.5-mm Pitch and Single Thermal Pad
  • Create a Custom Design Using the TPS543C20 With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck converters (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)
Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
Type
TPS543C20 TPS53353 TPS53355 TPS543B20 TPS544C25 TPS548B22 TPS548D22 TPS56221
4     1.5     1.5     4     4.5     1.5     1.5     4.5    
16     15     15     19     18     18     16     14    
0.6     0.6     0.6     0.6     0.5     0.6     0.6     0.6    
5.5     5.5     5.5     5.5     5     5.5     5.5     12    
40     20     30     25     30     25     40     25    
1     1     1     1     1     1     1     1    
300     250     250     300     200     425     425     300    
2000     1000     1000     2000     1000     1050     1050     1000    
4.3     0.32     0.32     3     7.7     2     2     2.5    
Adjustable Current Limit
Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Frequency Synchronization
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining    
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable    
Enable
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification    
Current Mode     D-CAP     D-CAP     Current Mode     Voltage Mode     D-CAP3     D-CAP3     Voltage Mode    
70     90     90     70     80     80     80     93    
-40 to 125     -40 to 85     -40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
LQFN-CLIP | 40     LSON-CLIP | 22     LSON-CLIP | 22     LQFN-CLIP | 40     LQFN-CLIP | 40     LQFN-CLIP | 40     LQFN-CLIP | 40     LSON-CLIP | 22    
Converter     Converter     Converter     Converter