1.5V to 15V Input (4.5V to 25V Bias), 30A Synchronous Step-Down SWIFT™ Converter with Eco-mode™ - TPS53355

TPS53355 (ACTIVE)

1.5V to 15V Input (4.5V to 25V Bias), 30A Synchronous Step-Down SWIFT™ Converter with Eco-mode™

 

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Special Note

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

Description

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/2.0 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 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

  • 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 Startup 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
  • Green (RoHS Compatible), is Optional

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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)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS53355 TPS51362 TPS53318 TPS53319 TPS53353 TPS543C20 TPS548D21 TPS548D22 TPS549D22 TPS56121 TPS56221 TPS56520 TPS566250 TPS56628 TPS56720
1.5    3    1.5    1.5    1.5    4    1.5    1.5    1.5    4.5    4.5    4.5    4.5    4.5    4.5   
15    22    22    22    15    16    16    16    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   
30    10    8    14    20    40    40    40    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    425    425    315    300    300    500    500    650    500   
1000    800    1000    1000    1000    2000    1050    1050    1125    1000    1000    500    500    650    500   
0.32    0.1    0.32    0.32    0.32    4.3    2    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   
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
Dynamic Voltage Scaling
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining   
Adjustable Current Limit
Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
UVLO Adjustable   
Adjustable Current Limit
Dynamic Voltage Scaling
Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Remote Sense
Synchronous Rectification
Tracking
UVLO Adjustable
Voltage Margining   
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    D-CAP3    D-CAP3    D-CAP3    Voltage Mode    Voltage Mode      D-CAP2    D-CAP2    D-CAP2   
90    87    90    90    90      80    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 85    -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   
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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


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