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

View more

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
Preset Vout (V)
Vref Accuracy (Typ) (%)
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS54062 TPS62730 TPS62733 TPS62260-Q1 TPS62160 TPS62230 TPS62240 TPS62237 TPS62290 TPS62260 TPS54061 TPS62732 TPS62122
  1     1         1       1     1     1     1     1     1    
  1.9     1.9         2.05       2.05     2.3     2     4.7     1.9     2    
  3.9     3.9         6       6     6     6     60     3.9     15    
  2.1     2.3         2.5       3.3     0.6     0.6     0.8     1.9     1.2    
  2.1     2.3         2.5       3.3     6     6     58     1.9     5.5    
0.05     0.1     0.1     0.6     1     0.5     0.3     0.5     1     0.6     0.2     0.1     0.075    
  Buck     Buck         Buck       Buck     Buck     Buck     Buck
Inverting Buck-Boost    
Buck     Buck
Inverting Buck-Boost    
                2500     2500     1100        
  0.41     0.41         0.84       0.84     1.4     1     0.35     0.41     0.25    
0.089     0.025     0.025     0.015     0.017     0.022     0.015     0.022     0.015     0.015     0.09     0.025     0.011    
98     100     100     100     100     100     100     100     100     100     98     100     100    
  Fixed     Fixed         Fixed       Fixed     Fixed     Fixed     Fixed     Fixed     Fixed    
External     Internal     Internal     Internal     Internal     Internal     Internal     Internal     Internal     Internal     External     Internal     Internal    
  Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
    Enable
Light Load Efficiency
Synchronous Rectification    
  Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Synchronous Rectification    
SWIFT     DCS-Control     DCS-Control       DCS-Control     DCS-Control       DCS-Control         SWIFT     DCS-Control     DCS-Control    
Current Mode         Voltage Mode         Voltage Mode       Voltage Mode     Voltage Mode     Current Mode        
  2.1     2.3         2.5       3.3              
  1.5     1.5         2       2     1.5     1.5     1     1.5     2.5    
Catalog     Catalog     Catalog     Automotive     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 85     -40 to 85     -40 to 105
-40 to 85    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 150     -40 to 85     -40 to 85    
8SON
8VSSOP    
6SON     6SON     5SOT
6SON    
8VSSOP
8WSON    
6SON     5SOT
6SON    
6SON     6SON     5SOT
6SON    
8SON     6SON     6SON    
0.88 | 1ku     0.65 | 1ku     0.65 | 1ku     0.76 | 1ku     0.85 | 1ku     0.50 | 1ku     0.50 | 1ku     0.50 | 1ku     0.80 | 1ku     0.65 | 1ku     1.04 | 1ku     0.65 | 1ku     0.65 | 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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