TPS54233 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode | TI.com

TPS54233 (ACTIVE) 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode

 

Description

The TPS54233 is a 28 V, 2 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 under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54233 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

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 2A Continuous Output Current
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-mode™
  • Fixed 300 kHz 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 Fold
    Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by WEBENCH® Software Tool
    (www.TI.com/WEBENCH)
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes,
      CPE Equipment, LCD Displays, Peripherals, and
      Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5V, 12V and 24V Distributed Power Systems

WEBENCH Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS54233

  Min   Max Range
Vin  V 3.5 to 28.0V
Vout  V 0.8 to 25V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 150°C

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order 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 Type Package size: mm2:W x L (PKG)
TPS54233 Order now 3.5     28     0.8     25     2     1     300     300     0.075     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54231 Order now 3.5     28     0.8     25     2     1     570     570     0.075     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54232 Order now 3.5     28     0.8     25     2     1     1000     1000     0.085     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54331 Order now 3.5     28     0.8     25     3     1     570     570     0.11     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SO PowerPAD | 8
SOIC | 8    
Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS54332 Order now 3.5     28     0.8     25     3.5     1     1000     1000     0.082     Enable
Light Load Efficiency
UVLO Adjustable
Soft Start Adjustable    
Current Mode     90     -40 to 150     Catalog     SO PowerPAD | 8