3A, High-Efficiency Step-Down Converter Module with Integrated Inductor

3A, High-Efficiency Step-Down Converter Module with Integrated Inductor - TPS82085

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The TPS82085 device is a 3-A step-down converter MicroSiP™ module optimized for small solution size and high efficiency. The power module integrates a synchronous step-down converter and an inductor to simplify design, reduce external components and save PCB area. The low profile and compact solution is suitable for automated assembly by standard surface mount equipment.

To maximize efficiency, the converter operates in PWM mode with a nominal switching frequency of 2.4MHz and automatically enters Power Save Mode operation at light load currents. In Power Save Mode, the device operates with typically 17-µA quiescent current. Using the DCS-Control™ topology, the device achieves excellent load transient performance and accurate output voltage regulation. The EN and PG pins, which support sequencing configurations, bring a flexible system design. An integrated soft startup reduces the inrush current required from the input supply. Over temperature protection and Hiccup short circuit protection deliver a robust and reliable solution.


  • 3-A, Low Profile MicroSiP™ Power Module
  • DCS-Control™ Topology
  • Up to 95% Efficiency
  • 17-µA Operating Quiescent Current
  • –40°C to 125°C Operating Temperature Range
  • Hiccup Short Circuit Protection
  • 2.5-V to 6-V Input Voltage Range
  • 0.8-V to VIN Adjustable Output Voltage
  • Power Save Mode for Light Load Efficiency
  • 100% Duty Cycle for Lowest Dropout
  • Output Discharge Function
  • Power Good Output
  • Integrated Soft Startup
  • Over Temperature Protection
  • 3.0-mm × 2.8-mm × 1.3-mm 8-Pin µSiL Package

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Parametrics Compare all products in Step-Down (Buck) Module

Iout (Max) (A)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Soft Start
Iq (Typ) (mA)
Regulated Outputs (#)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Switching Frequency (Typ) (kHz)
Operating Temperature Range (C)
TPS82085 TPS82084
3    2   
2.5    2.5   
6    6   
0.8    0.8   
6    6   
Fixed    Fixed   
Light Load Efficiency
Output Discharge
Power Good   
Light Load Efficiency
Output Discharge
Power Good   
0.017    0.017   
1    1   
2800    2600   
2000    2000   
2400    2400   
Synchronous Buck   
Synchronous Buck   
-40 to 125    -40 to 125   
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WEBENCH® Designer TPS82085

  Min   Max Range
Vin  V 2.5 to 6.0V
Vout  V 0.8 to 6V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C

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