Low Iq, Synchronous Boost Controller with Wide Input Voltage and 5.5V Gate Drive for Low Qg  NexFETs - TPS43061


Low Iq, Synchronous Boost Controller with Wide Input Voltage and 5.5V Gate Drive for Low Qg NexFETs


The TPS43060 and TPS43061 are low IQ current-mode synchronous boost controllers with wide input voltage range from 4.5 V to 38 V (40 V abs max) and boosted output range up to 58 V. Synchronous rectification enables high efficiency for high current applications, and lossless inductor DCR sensing further improves efficiency. The resulting low power losses combined with a 3 mm × 3 mm WQFN-16 package with PowerPAD™ supports high power-density and high reliability boost converter solutions over extended (–40°C to 150°C) temperature range.

The TPS43060 includes a 7.5 V gate drive supply which is suitable to drive a broad range of MOSFETs. The TPS43061 has a 5.5 V gate drive supply and driver strength optimized for low Qg NexFET™. In addition, TPS43061 provides an integrated bootstrap diode for the high side gate driver to reduce external parts count.


  • 58 V Maximum Output Voltage
  • 4.5 V to 38 V (40 V Abs Max) VIN Range
  • TPS43060: 7.5 V Gate Drive Optimized for
    Standard Threshold MOSFETs
  • TPS43061: 5.5 V Gate Drive Optimized for
    Low Qg NexFETs
  • Current-Mode Control with Internal Slope
  • Adjustable Frequency from 50kHz to 1MHz
  • Synchronization Capability to External Clock
  • Adjustable Soft-Start Time
  • Inductor DCR or Resistor Current Sensing
  • Output Voltage Power-Good Indicator
  • ±0.8% Feedback Reference Voltage
  • 5 µA Shutdown Supply Current
  • 600 µA Operating Quiescent Current
  • Integrated Bootstrap Diode (TPS43061)
  • Cycle-by-Cycle Current Limit and Thermal
  • Adjustable UVLO and Output Overvoltage
  • Small 16-Pin WQFN (3 mm x 3 mm) Package
    with PowerPAD
  • –40°C to 150°C Operating
    TJ Range

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Parametrics Compare all products in Step-Up (Boost) Controller

Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Regulated Outputs (#)
Control Mode
Market Segment
Special Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Approx. Price (US$)
TPS43061 TPS43060
4.5     4.5    
40     40    
4.5     4.5    
60     60    
20     20    
1000     1000    
0.6     0.6    
1     1    
  Current Mode    
Frequency Synchronization
Power Good
Synchronous Rectification    
Frequency Synchronization
Power Good
Synchronous Rectification    
95     95    
Catalog     Catalog    
-40 to 150     -40 to 150    
Boost     Boost    
16WQFN     16WQFN    
1.40 | 1ku     1.40 | 1ku    

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    Min   Max   Range  
  Vin V    4.50 – 38.00V  
  Vout V    4.50 – 58.00V  
  Iout A    ≤ 15A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
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