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.

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

Adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency fold back 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 Fold Back 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)
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 TPS54061 TPS54061-Q1
1     1     1    
4.7     4.7     4.7    
60     60     60    
0.8     0.8     0.8    
58     58     58    
0.05     0.2     0.2    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost    
Buck    
400     1100     1100    
0.13     0.35     0.35    
0.089     0.09     0.09    
98     98     98    
Fixed     Fixed     Fixed    
External     External     External    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Adjustable UVLO
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
SWIFT     SWIFT      
Current Mode     Current Mode     Current Mode    
1     1     1    
Catalog     Catalog     Automotive    
-40 to 125     -40 to 150     -40 to 150    
8SON
8VSSOP    
8SON     8SON    
0.88 | 1ku     1.04 | 1ku     1.30 | 1ku    
WEBENCH® TPS54062
    Min   Max   Range  
  Vin V    4.70 – 60.00V  
  Vout V    0.80 – 58.00V  
  Iout A    ≤ 0.05A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
 
 
 
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