TPS53319 (ACTIVE)

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

Special Note

The TPS53319 is a pin to pin match with the TPS53353 and TPS53355.

Description

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.

Features

  • 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™

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
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
TPS53319 TPS51362 TPS53318 TPS53353 TPS53355 TPS56520 TPS566250 TPS56628 TPS56720
1.5    3    1.5    1.5    1.5    4.5    4.5    4.5    4.5   
22    22    22    15    15    17    17    18    17   
0.6    0.6    0.6    0.6    0.6    0.6    0.6    0.76    0.6   
5.5    2    5.5    5.5    5.5    1.87    1.87    5.5    1.87   
14    10    8    20    30    5    6    6    7   
1    1    1    1    1    1    1    1    1   
250    800    250    250    250    500    500    650    500   
1000    800    1000    1000    1000    500    500    650    500   
0.32    0.1    0.32    0.32    0.32    0.92    0.9    0.95    0.92   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining   
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Power Good
Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency
Power Good
Synchronous Rectification   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining   
D-CAP    D-CAP2    D-CAP    D-CAP    D-CAP    D-CAP2    D-CAP2    D-CAP2    D-CAP2   
90    87    90    90    90    80    80    85    80   
-40 to 85    -10 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
LSON-CLIP    VQFN-CLIP    LSON-CLIP    LSON-CLIP    LSON-CLIP    HTSSOP    SO PowerPAD    SO PowerPAD    HTSSOP   
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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


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