TPS5432 2.95V to 6V Input, 3A Synchronous Step-Down Converter |

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
2.95V to 6V Input, 3A Synchronous Step-Down Converter


Recommended alternative parts

  • TPS54519  -  Looking for a device with more output current? Try the TPS54519.
  • TPS54328  -  Looking for a device with higher input voltage? Try the TPS54328.


The TPS5432 is a 6V, 3A, low Iq, current mode, synchronous monolithic buck converter with integrated MOSFETs. The TPS5432 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by 700kHz switching frequency. SOIC-8 package with exposed thermal pad provides both thermally enhanced solution and easy to use.

The TPS5432 provides accurate regulation for a variety of loads with an accurate 3.0% voltage reference over temperature.

Efficiency is maximized through the integrated 70mΩ MOSFETs and 360μA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

The output voltage startup ramp is controlled by the slow start pin. A ceramic capacitor at this pin can easily adjust the slow start time.

Frequency fold back and thermal shutdown protects the device during an over-current condition.


  • Two 70mΩ (typical) MOSFETs for 3A Continuous Output Current
  • Current Mode Control With External Compensation
  • 700kHz Switching Frequency
  • 360µA no Load Quiescent Operating Current (no switching)
  • 0.808V Internal Voltage Reference
  • ±2.0% Reference Accuracy at 25°C
  • ±3.0% Reference Accuracy Over Temperature Range –40°C~125°C
  • Stable Operation With Ceramic Output Capacitor
  • Adjustable Slow Start
  • Cycle by Cycle Current Limit, and Frequency Fold Back Protection
  • Thermally Enhanced 8-Pin SOIC (DDA) Package

WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS5432

  Min   Max Range
Vin  V 2.95 to 6.0V
Vout  V 0.808 to 5.5V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 150°C


Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Package Group Rating Type Package size: mm2:W x L (PKG)
TPS5432 Order now 2.95     6     0.808     4.5     3     1     700     700     0.36     Enable
Synchronous Rectification
Soft Start Adjustable    
Current Mode     98     -40 to 125     SO PowerPAD | 8     Catalog     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)