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4.5V to 28V Input, 2A Output, EMI Friendly Synchronous Step-Down Converter

Availability: 14,306


Package | PIN: SOT-23-THN (DDC) | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.21
10-24 $1.08
25-99 $1.01
100-249 $0.88
250-499 $0.81
500-749 $0.68
750-999 $0.56
1000+ $0.51


  • 4.5-V to 28-V Wide Input voltage Range
  • Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A, Continuous Output Current
  • Low 2-µA Shutdown, 45-µA Quiescent Current
  • Internal 5-mS Soft-Start
  • Fixed 500-kHz Switching Frequency
  • Frequency Spread Spectrum to Reduce EMI
  • Advanced Eco-mode™ Pulse Skip
  • Peak Current Mode Control
  • Internal Loop compensation
  • Overcurrent Protection for Both MOSFETs with Hiccup Mode Protection
  • Over Voltage Protection
  • Thermal Shutdown
  • SOT-23 (6) Package

Texas Instruments  TPS54202DDCR

The TPS54202 is a 4.5-V to 28-V input voltage range, 2-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count.

By integrating the MOSFETs and employing the SOT-23 package, the TPS54202 achieves the high power density and offers a small footprint on the PCB.

Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.

In TPS54202, the frequency spread spectrum operation is introduced for EMI reduction.

Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.