3-20V, Voltage Mode Synchronous Buck Controller with Temperature-Compensated DCR Current Sensing - LM27403

LM27403 (ACTIVE)

3-20V, Voltage Mode Synchronous Buck Controller with Temperature-Compensated DCR Current Sensing

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

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Regulated Outputs (#)
Topology
Market Segment
Control Mode
Special Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LM27403 LM27402
3     3    
20     20    
0.6     0.6    
19     18.6    
  30    
200     200    
1200     1200    
3.5     4.5    
93     95    
1     1    
Buck     Buck    
Communications & Telecom     Communications & Telecom
Computing & Multimedia    
Voltage Mode     Voltage Mode    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Catalog     Catalog    
-40 to 125     -40 to 125    
24WQFN     16HTSSOP
16WQFN    
0.95 | 1ku     1.10 | 1ku    
WEBENCH® LM27403
    Min   Max   Range  
  Vin V    3.00 – 20.00V  
  Vout V    0.60 – 18.60V  
  Iout A    ≤ 40A  
  Ambient Temp °C    -40 – 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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Companion parts

Part # Name Product Family Comments
LM10011   1% Accuracy 4/6-Bit VID Voltage Programmer for Point of Load Regulator w/ Adj Start-Up Current   POWER SUPPLY SUPPORT - FEEDBACK SIGNAL GENERATOR    6-Bit VID Control  
CSD87350Q5D   Synchronous Buck NexFET™ Power Block MOSFET Pair   POWER MOSFET - POWER MOSFET MODULE    Power MOSFET  
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