LM2593HV SIMPLE SWITCHER Power Converter 150 KHz 2A Step-Down Voltage Regulator with Features | TI.com

LM2593HV (ACTIVE)

SIMPLE SWITCHER Power Converter 150 KHz 2A Step-Down Voltage Regulator with Features

 

Recommended alternative parts

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Description

The LM2593HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 2-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3-V, 5-V, and an adjustable output version.

This series of switching regulators is similar to the LM2592HV with additional supervisory and performance features.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, fixed-frequency oscillator, Shutdown/Soft-start, output error flag, and flag delay.

The LM2593HV operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 7-pin TO-220 package with several different lead bend options, and a 7-pin TO-263 surface-mount package.

Other features include a specified ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 90-µA standby current. Self-protection features include a two stage current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.

Features

  • 3.3-V, 5-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range: 1.2 V
    to 57 V ±4% Maximum Over Line and Load
    Conditions
  • Ensured 2-A Output Load Current
  • Available in 7-Pin TO-220 and TO-263 (Surface-
    Mount) Package
  • Input Voltage Range up to 60 V
  • 150-kHz Fixed Frequency Internal Oscillator
  • Shutdown and Soft-Start
  • Out-of-Regulation Error Flag
  • Error Flag Delay
  • Low Power Standby Mode: IQ, Typically 90 µA
  • High Efficiency
  • Thermal Shutdown and Current-Limit Protection

View more

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
LM2593HV
4.5    
60    
1.2    
57    
2    
1    
110    
173    
5    
Power Good    
Voltage Mode    
100    
-40 to 125    
Catalog    
DDPAK/TO-263 | 7
TO-220 | 7    
Converter    

Design tool

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

WEBENCH® Designer LM2593HV

  Min   Max Range
Vin  V 4.5 to 60.0V
Vout  V 1.23 to 57V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C


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