2.95-5.5V, 12A, Voltage Mode Synchronous Point of Load Buck Regulator with Frequency Synchronization - LM21212-1

LM21212-1 (ACTIVE)

2.95-5.5V, 12A, Voltage Mode Synchronous Point of Load Buck Regulator with Frequency Synchronization

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)
Duty Cycle (Max) (%)
Soft Start
Compensation
Special Features
Brand
Control Mode
Vref Accuracy (Typ) (%)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LM21212-1 LM21212-2 LM21215 LM21215A TPS53353 TPS53355 TPS53915 TPS53319 TPS53515 TPS56121 TPS56221 TPS53315 TPS53316
1     1     1     1     1     1     1     1     1     1     1     1     1    
2.95     2.95     2.95     2.95     1.5     1.5     1.5     1.5     1.5     4.5     4.5     3     2.9    
5.5     5.5     5.5     5.5     15     15     18     22     18     14     14     15     6    
0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6     0.6    
5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     12     12     5.5     5.5    
12     12     15     15     20     30     12     14     12     15     25     12     5    
Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck     Buck    
1500     1500     500     1500     1000     1000     1000     1000     1000     1000     1000     1000     2000    
17     17     20     20     28     40       22       21     35     21     9    
1.5     1.5     1.5     1.5     0.32     0.32     1.35     0.32     1.35     2.5     2.5     0.32     0.32    
100     100     100     100     90     90       90       93     93     90     99    
Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Adjustable     Fixed     Fixed     Adjustable     Adjustable     Adjustable     Adjustable    
External     External     External     External     Not Needed     Not Needed     Not Needed     Not Needed     Not Needed     External     External     Not Needed     External    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Enable
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Adjustable Current Limit
Enable
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Synchronous Rectification
Voltage Margining    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Power Good
Adjustable Current Limit
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
        SWIFT     SWIFT     SWIFT     SWIFT     SWIFT     SWIFT     SWIFT     SWIFT      
Voltage Mode     Voltage Mode     Voltage Mode     Voltage Mode     D-CAP     D-CAP     D-CAP3     D-CAP     D-CAP3     Voltage Mode     Voltage Mode     D-CAP     Voltage Mode    
1     1     1     1     1     1     0.5     1     0.5     1     1     1     1    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 125     -40 to 125     -40 to 85     -40 to 85    
20HTSSOP     20HTSSOP     20HTSSOP     20HTSSOP     22LSON-CLIP     22LSON-CLIP     28VQFN-CLIP     22LSON-CLIP     28VQFN-CLIP     22LSON-CLIP     22LSON-CLIP     40VQFN     16QFN    
3.30 | 1ku     3.30 | 1ku     3.55 | 1ku     3.55 | 1ku     3.50 | 1ku     3.75 | 1ku     3.00 | 1ku     3.35 | 1ku     2.70 | 1ku     3.50 | 1ku     3.75 | 1ku     3.50 | 1ku     1.99 | 1ku    

Featured tools and software

WEBENCH® LM21212-1
    Min   Max   Range  
  Vin V    2.95 – 5.50V  
  Vout V    0.60 – 5.40V  
  Iout A    ≤ 12A  
  Ambient Temp °C    -40 – 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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Companion parts

Part # Name Product Family Comments
LM21212-2   2.95-5.5V, 12A, Voltage Mode Synchronous Point of Load Buck Regulator with Adjustable Frequency   CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER    
LM21215   2.95-5.5V, 15A, Voltage Mode Synchronous Buck Regulator   CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER    
LM21215A   2.95-5.5V, 15A, Voltage Mode Synchronous Buck Regulator with Frequency Synchronization   CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER    
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    
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