TPS54232 3.5V to 28V Input, 2A, 1MHz Step-Down Converter with Eco-mode | TI.com

TPS54232 (ACTIVE)

3.5V to 28V Input, 2A, 1MHz Step-Down Converter with Eco-mode

3.5V to 28V Input, 2A, 1MHz Step-Down Converter with Eco-mode - TPS54232
 

Recommended alternative parts

  • TPS54332  -  Looking for a device with more output current? Try the TPS54332.
  • TPS54239E  -  Looking for a device with lower input voltage? Try theTPS54239E.
  • TPS54231  -  Looking for a device with lower switching frequency? Try theTPS54231.

Description

The TPS54232 is a 28-V, nonsynchronous 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 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 TPS54232 is available in an 8-pin SOIC 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 2-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 Fold
    Back and Thermal Shutdown Protection
  • Available in 8-Pin SOIC Package
  • Supported by WEBENCH Software Tool
    (http://www.ti.com/lsds/ti/analog/webench/overview.page)

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Parametrics Compare all products in Buck converters (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
Type
TPS54232 TPS54231 TPS54233
3.5     3.5     3.5    
28     28     28    
0.8     0.8     0.8    
25     25     25    
2     2     2    
1     1     1    
1000     570     300    
1000     570     300    
0.085     0.075     0.075    
Enable
Light Load Efficiency
UVLO Adjustable    
Enable
Light Load Efficiency
UVLO Adjustable    
Enable
Light Load Efficiency
UVLO Adjustable    
Current Mode     Current Mode     Current Mode    
90     90     90    
-40 to 150     -40 to 150     -40 to 150    
Catalog     Catalog     Catalog    
SOIC | 8     SOIC | 8     SOIC | 8    
Converter     Converter     Converter    
New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS54232

  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


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