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 to 38 V (40 V absolute 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 power MOSFETs. Also, TPS43061 provides an integrated bootstrap diode for the high-side gate driver to reduce the external parts count.


  • 58-V Maximum Output Voltage
  • 4.5 to 38 V (40 V Absolute Max)
    VIN Range
  • TPS43060: 7.5-V Gate Drive Optimized
    for Standard Threshold MOSFETs
  • TPS43061: 5.5-V Gate Drive Optimized
    for Low Qg NexFET™ Power MOSFETs
  • Current-Mode Control With Internal
    Slope Compensation
  • Adjustable Frequency from 50 kHz to
    1 MHz
  • Synchronization Capability to External
  • 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 Undervoltage Lockout (UVLO)
    and Output Overvoltage Protection
  • Small 16-Pin WQFN (3 mm × 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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New! Interactive Design
Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.
    Min   Max   Range  
  Vin V 4.5 to 38.0V  
  Vout V 4.5 to 58.0V  
  Iout A ≤ 15A  
  Ambient Temp °C -40 to 150°C  
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