TPS53319 1.5V to 22V Input (4.5V to 25V Bias), 14A Synchronous Step-Down Converter with Eco-Mode™ |

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1.5V to 22V Input (4.5V to 25V Bias), 14A Synchronous Step-Down Converter with Eco-Mode™


Recommended alternative parts

  • TPS548A20  -  4.5V to 25V input, DCAP3 Mode, 15-A Synchronous Step-Down SWIFT Converter


The TPS53318 and TPS53319 devices are D-CAP mode, 8-A or 14-A synchronous switchers with integrated MOSFETs. They are designed for ease of use, low external component count, and space-conscious power systems.

These devices feature accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 22-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 22 V, 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.

These devices are available in 5 mm x 6 mm, 22-pin QFN package and is specified from –40°C to 85°C.


  • Conversion Input Voltage Range: 1.5 V to 22 V
  • VDD Input Voltage Range: 4.5 V to 25 V
  • 91% Efficiency from 12 V to 1.5 V at 14 A
  • Output Voltage Range: 0.6 V to 5.5 V
  • 5-V LDO Output
  • Supports Single-Rail Input
  • Integrated Power MOSFETs with 8 A (TPS53318) or 14 A (TPS53319) of Continuous Output Current
  • Auto-Skip Eco-mode™ for Light-Load Efficiency
  • < 110 µA Shut Down 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
  • Pre-Charged Start-Up Capability
  • Adjustable Overcurrent Limit with Thermal Compensation
  • Overvoltage, Undervoltage, UVLO and Over-Temperature Protection
  • Supports All Ceramic Output Capacitors
  • Open-Drain Power Good Indication
  • Incorporates NexFET™ Power Block Technology
  • 22-Pin QFN (DQP) Package with PowerPAD™

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

WEBENCH® Designer TPS53319

  Min   Max Range
Vin  V 1.5 to 22.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 14A
Ambient Temp  °C -40 to 125°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)
TPS53319 Order now 1.5     22     0.6     5.5     14     1     250     1000     0.32     Adjustable Current Limit
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Forced PWM
Soft Start Adjustable
Output Discharge
Over Current Protection
UVLO Fixed    
D-CAP     90     -40 to 85     LSON-CLIP | 22     Catalog     Converter     22LSON-CLIP: 30 mm2: 5 x 6 (LSON-CLIP | 22)