TPS53353 (ACTIVE)

High-Efficiency 20-A SWIFT™ Synchronous Buck Converter with Eco-mode™

 

Recommended alternative parts

  • LMZ31520  -  Looking for a power module? Try the LMZ31520

Special Note

A pin-to-pin match with TPS53319 and TPS53355.

Description

TPS53353 is a D-CAP™ mode, 20-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 5.5-mΩ / 2.2-mΩ integrated MOSFETs, accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: a conversion input voltage range from 1.5 V to 15 V, 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 15 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.

The device is available in 5-mm × 6-mm, 22-pin QFN package and is specified from –40°C to 85°C.

Features

  • Conversion Input Voltage Range: 1.5 V to 15 V
  • VDD Input Voltage Range: 4.5 V to 25 V
  • 92% Efficiency From 12 V to 1.5 V at 20 A
  • Output Voltage Range: 0.6 V to 5.5 V
  • 5-V LDO Output
  • Supports Single-Rail Input
  • Integrated Power MOSFETs With 20 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 http://www.ti.com/swift

View more

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
TPS53353 TPS51362 TPS53318 TPS53319 TPS53355 TPS543B20 TPS543C20 TPS548B22 TPS548D22 TPS56121 TPS56221 TPS56520 TPS566250 TPS56628 TPS56720
1.5    3    1.5    1.5    1.5    4    4    1.5    1.5    4.5    4.5    4.5    4.5    4.5    4.5   
15    22    22    22    15    19    16    18    16    14    14    17    17    18    17   
0.6    0.6    0.6    0.6    0.6    0.6    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    5.5    5.5    5.5    5.5    12    12    1.87    1.87    5.5    1.87   
20    10    8    14    30    25    40    25    40    15    25    5    6    6    7   
1    1    1    1    1    1    1    1    1    1    1    1    1    1    1   
250    800    250    250    250    300    300    425    425    300    300    500    500    650    500   
1000    800    1000    1000    1000    2000    2000    1050    1050    1000    1000    500    500    650    500   
0.32    0.1    0.32    0.32    0.32    3    4.3    2    2    2.5    2.5    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   
Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Enable
Frequency Synchronization
N/A
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification   
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Enable
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Enable
Light Load Efficiency
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    Current Mode    Current Mode    D-CAP3    D-CAP3    Voltage Mode    Voltage Mode    D-CAP2    D-CAP2    D-CAP2    D-CAP2   
90    87    90    90    90    70    70    80    80    93    93    80    80    85    80   
-40 to 85    -10 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
LSON-CLIP    VQFN-CLIP    LSON-CLIP    LSON-CLIP    LSON-CLIP    LQFN-CLIP    LQFN-CLIP    LQFN-CLIP    LQFN-CLIP    LSON-CLIP    LSON-CLIP    HTSSOP    SO PowerPAD    SO PowerPAD    HTSSOP   
New! Interactive Design
Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.

WEBENCH® Designer TPS53353

  Min   Max Range
Vin  V 1.5 to 15.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 20A
Ambient Temp  °C -40 to 150°C


Footprint BOM Cost Efficiency


Preview design