TPS53355 1.5V to 15V Input (4.5V to 25V Bias), 30A Synch Step-Down SWIFT™ Converter w/ Eco-mode™ |

TPS53355 (ACTIVE) 1.5V to 15V Input (4.5V to 25V Bias), 30A Synch Step-Down SWIFT™ Converter w/ Eco-mode™


Recommended alternative parts

  • LMZ31530  -  Looking for a power module? Try the LMZ31530

Special Note

A pin-to-pin match with TPS53319 and TPS53353.


TPS53355 is a D-CAP™ mode, 30-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems.

This device features 5-mΩ/2-mΩ integrated MOSFETs, accurate 1% 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 15-V wide conversion input voltage range, very low external component count, D-CAP™ mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation.

The conversion input voltage ranges from 1.5 V to 15V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The device is available in 6-mm × 5-mm, 22-pin QFN package.


  • 96% Maximum efficiency
  • Conversion input voltage range: 1.5 V to 15 V
  • VDD input voltage range: 4.5 V to 25 V
  • Output voltage range: 0.6 V to 5.5 V
  • 5-V LDO output
  • Supports single rail input
  • Integrated power MOSFETs with 30 A of continuous output current
  • Auto-skip Eco-mode™ for light-load efficiency
  • < 10-µA Shutdown current
  • D-CAP™ mode with fast transient response
  • Selectable switching frequency from 250 kHz to 1 MHz with external resistor
  • Selectable auto-skip or PWM-only operation
  • Built-in 1% 0.6-V reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable internal voltage servo soft start
  • Integrated boost switch
  • Precharged start-up capability
  • Adjustable overcurrent limit with thermal compensation
  • Overvoltage, undervoltage, UVLO and overtemperature protection
  • Supports all ceramic output capacitors
  • Open-drain power-good indication
  • Incorporates NexFET™ power block technology
  • 22-Pin QFN package With PowerPAD™
  • For SWIFT™ power products documentation, see
  • Green (RoHS compatible), is optional
  • Create a custom design using the TPS53355 with the WEBENCH® Power Designer

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

WEBENCH® Designer TPS53355

  Min   Max Range
Vin  V 1.5 to 15.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 30A
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) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS53355 Order now 1.5     15     0.6     5.5     30     1     250     1000     0.32     Adjustable Current Limit
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
D-CAP     90     -40 to 125     Catalog     LSON-CLIP | 22     Converter     22LSON-CLIP: 30 mm2: 5 x 6 (LSON-CLIP | 22)