28V, 0.5A Step-Down Converter with SNOOZE Mode - TPS62175


28V, 0.5A Step-Down Converter with SNOOZE Mode


The TPS62175/7 is a high efficiency synchronous step-down DC-DC converter, based on the DCS-Control topology.

With a wide operating input voltage range of 4.75 to 28V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12V and even higher intermediate supply rails, providing up to 500mA output current.

The TPS62175/7 automatically enters Power Save Mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep Mode to supply applications with advanced power save modes like ultra low power micro controllers. The Power Good output may be used for power sequencing and/or Power On Reset.

The device features a typical quiescent current of 22µA in normal mode and 4.8uA in Sleep Mode. In Sleep Mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2µA and the output is actively discharged.

The TPS62175/7, available in an adjustable and a fixed output voltage version, is packaged in a small 2x3mm 10-pin WSON package.


  • DCS-Control Topology
  • Input Voltage Range 4.75 to 28V
  • Quiescent Current typ. 4.8µA (Sleep Mode)
  • 100% Duty Cycle Mode
  • Active Output Discharge
  • Power Good Output
  • Output Current of 500mA
  • Output Voltage Range 1V to 6V
  • Switching Frequency of Typically 1MHz
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in 2 × 3 mm 10-pin WSON Package

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Parametrics Evaluate all products in Step-Down (Buck) Converter

  TPS62175 Compare
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Regulated Outputs (#) 1
Vin (Min) (V) 4.7
Vin (Max) (V) 28
Vout (Min) (V) 1
Vout (Max) (V) 6
Iout (Max) (A) 0.5
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
Inverting Buck-Boost
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) -
Switch Current Limit (Typ) (A) 1
Iq (Typ) (mA) 0.0048
Duty Cycle (Max) (%) 100
Soft Start Fixed
  • Adjustable
  • Fixed
  • None
Compensation Internal
  • External
  • Internal
  • Not Needed
Special Features Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode -
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) 1.8
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -40 to 85 °C to °C
Approx. Price (US$) 0.75 | 1ku
Package Group WSON
  • CFP
  • DDPAK/TO-263
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • USON
  • VQFN
  • VSON
  • WQFN
  • WSON
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So what do you think? Leave a comment about this table...

    Min   Max   Range  
  Vin V    4.75 – 28.00V  
  Vout V    1.00 – 6.00V  
  Iout A    ≤ 0.5A  
  Ambient Temp °C    -40 – 125°C  
Footprint BOM Cost Efficiency
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