4.7V to 60V Input, 50mA Synchronous Step-Down Converter - TPS54062

TPS54062 (ACTIVE)

4.7V to 60V Input, 50mA Synchronous Step-Down Converter

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Description

The TPS54062 device is a 60-V, 50-mA, synchronous step-down converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 89 µA. Using the enable pin, shutdown supply current is reduced to 1.7 µA.

Undervoltage lockout is internally set at 4.5 V, but can be increased using the accurate enable pin threshold. The output voltage start-up ramp is controlled by the internal slow-start time.

Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

Features

  • Integrated High-Side and Low-Side MOSFET
  • Peak Current Mode Control
  • Diode Emulation for Improved Light-Load
    Efficiency
  • 89 µA (typical) Operating Quiescent Current
  • 100-kHz to 400-kHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Internal Slow-Start
  • 0.8 V ±2% Voltage Reference
  • Stable with Ceramic Output Capacitors or Low-
    Cost Aluminum Electrolytic
  • Cycle-by-Cycle Current Limit, Thermal and
    Frequency Foldback Protection
  • MSOP-8 and 3mm × 3mm VSON-8 Packages

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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)
Iout2 (Max) (A)
Vout2 (Min) (V)
Vout2 (Max) (V)
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$)
TPS54062 LM26420 TPS54061 TPS54360 TPS54560 TPS54061-Q1 TPS54260 TPS54160A TPS54360-Q1 TPS54560-Q1 TPS54060A TPS54260-Q1 TPS54060-EP
  2     1     1     1     1       1     1     1       1     1    
4.7     3     4.7     4.5     4.5     4.7     3.5     3.5     4.5     4.5     3.5     3.5     3.5    
60     5.5     60     60     60     60     60     60     60     60     60     60     60    
0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8     0.8    
58     4.5     58     58.8     58.8     58     58     58     58.8     58.8     58     58     58    
0.05     2     0.2     3.5     5     0.2     2.5     1.5     3.5     5     0.5     2.5     0.5    
  2                          
  0.8                          
  4.5                          
Buck
Inverting Buck-Boost    
Buck     Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck     Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
400     2200     1100     2500     2500     1100     2500     2500     2500     2500     2500     2500     2500    
0.13     3.3     0.35     5.5     7.5     0.35     3.5     1.8     5.5     7.5     0.6     3.5     0.6    
0.089     0.9     0.09     0.146     0.146     0.09     0.138     0.116     0.146     0.146     0.116     0.138     0.116    
98     98     98     98     98     98     98     98     98     98     98     98     98    
Fixed     Fixed     Fixed     Fixed     Fixed     Fixed     Adjustable     Adjustable     Fixed     Fixed     Adjustable     Fixed     Adjustable    
External     Internal     External     External     External     External     External     External     External     External     External     External     External    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Phase Interleaving
Power Good
Pre-Bias Start-Up    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Enable
Frequency Synchronization
Light Load Efficiency
Adjustable UVLO    
Enable
Frequency Synchronization
Light Load Efficiency
Adjustable UVLO    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking
Adjustable UVLO    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking    
Enable
Frequency Synchronization
Light Load Efficiency
Adjustable UVLO    
Enable
Frequency Synchronization
Light Load Efficiency
Adjustable UVLO    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking    
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking
Adjustable UVLO    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Tracking    
SWIFT       SWIFT       SWIFT       SWIFT     SWIFT         SWIFT       SWIFT    
Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode       Current Mode    
1     1.5     1     1     1     1     1     1     1     1     1     1      
Catalog     Catalog     Catalog     Catalog     Catalog     Automotive     Catalog     Catalog     Automotive     Automotive     Catalog     Automotive     HiRel Enhanced Product    
-40 to 125     -40 to 125     -40 to 150     -40 to 125     -40 to 125     -40 to 150     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -55 to 125    
8SON
8VSSOP    
16WQFN
20HTSSOP    
8SON     8SO PowerPAD     8SO PowerPAD     8SON     10MSOP-PowerPAD
10VSON    
10MSOP-PowerPAD
10VSON    
8SO PowerPAD     8SO PowerPAD     10MSOP-PowerPAD
10VSON    
10MSOP-PowerPAD     10MSOP-PowerPAD    
0.88 | 1ku     2.05 | 1ku     1.04 | 1ku     2.10 | 1ku     2.30 | 1ku     1.30 | 1ku     1.86 | 1ku     1.58 | 1ku     2.75 | 1ku     3.20 | 1ku     1.27 | 1ku     2.18 | 1ku      
WEBENCH® TPS54062
    Min   Max   Range  
  Vin V 4.7 to 60.0V  
  Vout V 0.8 to 58.0V  
  Iout A ≤ 0.05A  
  Ambient Temp °C -40 to 125°C  
Footprint BOM Cost Efficiency
 
   
 
 
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