TPS61175-Q1 (ACTIVE)

3-A High-Voltage Automotive Boost Converter with Programmable Switching Frequency

3-A High-Voltage Automotive Boost Converter with Programmable Switching Frequency - TPS61175-Q1


The TPS61175-Q1 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It can be configured in several standard switching-regulator topologies, including boost, SEPIC and flyback. The device has a wide input voltage range to support application with input voltage from multi-cell batteries or regulated 5-V, 12-V power rails.

The TPS61175-Q1 regulates the output voltage with current mode PWM (pulse width modulation) control. The switching frequency of PWM is either set by an external resistor or an external clock signal. The user can program the switching frequency from 200-kHz to 2.2-MHz.

The device features a programmable soft-start function to limit inrush current during start-up, and has built-in other protection features, such as pulse-by-pulse over current limit and thermal shutdown. The TPS61175-Q1 is available in 14-pin HTSSOP package with PowerPAD.


  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to
      125°C Junction Operating Temperature Range
  • 2.9-V to 18-V Input Voltage Range
  • 3A, 40V Internal Switch
  • High Efficiency Power Conversion: Up to 93%
  • Frequency Set by External Resistor: 200-kHz to
  • Synchronous External Switching Frequency
  • User Defined Soft Start into Full Load
  • Skip-Switching Cycle for Output Regulation at
    Light Load
  • 14-pin HTSSOP Package with PowerPAD™

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Parametrics Compare all products in Boost Converter (Integrated Switch)

Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Iout (Max) (A)
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Package Group
TPS61175-Q1 LM2623-Q1 LM2735-Q1 TPS61085-Q1 TPS61087-Q1 TPS61093-Q1
2.9    1.0    2.7    2.3    2.5    1.6   
18    14    5.5    6    6    6   
2.9    1.24    3    2.8    3    1.7   
38    14    24    18.5    18.5    17   
3.8      2.25    2.6    4    1.1   
1    1    1    1    1    1   
160    300      480    900     
2640    2000      1500    1500    1400   
3    0.11    7    0.07    0.075    0.9   
Frequency Synchronization
Light Load Efficiency   
Enable    Enable    Enable
Light Load Efficiency   
Power Good   
Output Discharge   
93    90      89    90    93   
-40 to 125    -40 to 125    -40 to 125    -40 to 105    -40 to 125    -40 to 125   
Automotive    Automotive    Automotive    Automotive    Automotive    Automotive   

Other qualified versions of TPS61175-Q1

Version Part Number Definition
Catalog TPS61175 TI's standard catalog product
New! Interactive Design
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WEBENCH® Designer TPS61175-Q1

  Min   Max Range
Vin  V 2.9 to 18.0V
Vout  V 2.9 to 38V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C

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