3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode - TPS54332

TPS54332 (ACTIVE)

3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode

 

Recommended alternative parts

  • TPS54531  -  Looking for a device with more output current? Try the TPS54531.
  • TPS54339E  -  Looking for a device with lower input voltage? Try the TPS54339E.
  • TPS54232  -  Looking for a device with less output current? Try the TPS54232.
  • TPS54331  -  Looking for a device with lower switching frequency? Try theTPS54331.

Description

The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates a low-RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-Mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54332 is available in an 8-pin SOIC PowerPAD™ package.

Features

  • 3.5-V to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET Supports
    up to 3.5-A Continuous Output Current
  • High Efficiency at Light Loads With a Pulse-
    Skipping Eco-Mode™
  • Fixed 1-MHz Switching Frequency
  • Typical 1-µA Shutdown Quiescent Current
  • Adjustable Slow-Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency Foldback
    and Thermal Shutdown Protection
  • Available in Thermally Enhanced 8-Pin SOIC
    PowerPAD™ Package
  • Supported by WEBENCH™ Tool
    (http://www.ti.com/lsds/ti/analog/webench/overview.page)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5-V, 12-V and 24-V Distributed Power Systems

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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
TPS54332 TPS54231 TPS54232 TPS54233 TPS54331 TPS54334 TPS54335A TPS54336A TPS54531
3.5    3.5    3.5    3.5    3.5    4.2    4.5    4.5    3.5   
28    28    28    28    28    28    28    28    28   
0.8    0.8    0.8    0.8    0.8    0.8    0.8    0.8    0.8   
25    25    25    25    25    25    25    25    25   
3.5    2    2    2    3    3    3    3    5   
1    1    1    1    1    1    1    1    1   
1000    570    1000    300    570    570    50    340    570   
1000    570    1000    300    570    570    1500    340    570   
0.082    0.075    0.085    0.075    0.11    0.6    0.6    0.6    0.11   
Enable
Light Load Efficiency
UVLO Adjustable   
Enable
Light Load Efficiency
UVLO Adjustable   
Enable
Light Load Efficiency
UVLO Adjustable   
Enable
Light Load Efficiency
UVLO Adjustable   
Enable
Light Load Efficiency
UVLO Adjustable   
Enable
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency
Synchronous Rectification
UVLO Adjustable   
Enable
Light Load Efficiency   
Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode    Current Mode   
90    90    90    90    90    90    90    90    90   
-40 to 150    -40 to 150    -40 to 150    -40 to 150    -40 to 150    -40 to 85    -40 to 150    -40 to 150    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
SO PowerPAD    SOIC    SOIC    SOIC    SO PowerPAD
SOIC   
SO PowerPAD
VSON   
SO PowerPAD
VSON   
SO PowerPAD
VSON   
SO PowerPAD   
New! Interactive Design
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WEBENCH® Designer TPS54332

  Min   Max Range
Vin  V 3.5 to 28.0V
Vout  V 0.8 to 25V
Iout  A ≤ 3.5A
Ambient Temp  °C -40 to 150°C


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