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 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
TPS54232
3.5    
28    
0.8    
25    
2    
1    
1000    
1000    
0.085    
Enable
Light Load Efficiency
UVLO Adjustable    
Current Mode    
90    
-40 to 150    
Catalog    
SOIC    
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WEBENCH® Power Designer is now even easier to use. Learn more.

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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