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

TPS53319 (ACTIVE)

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

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

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    
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