Converters | LM2595

Buck Regulator, Switching, 1.0 A

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Overview

The LM2595 series of Buck Switching Regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation.

Requiring a minimum number of external components, these Buck Switching Regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.

The LM2595 series 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 5-lead TO-220 package with several different lead bend options, and a 5-lead D2PAK surface mount package.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2595 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a guaranteed +/-4% tolerance on output voltage under specified input voltage and output load conditions, and +/-15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. See LM2596 for 3.0A and LM2594 for 0.5A.

  • Simple high-efficiency step-down (buck) regulator
  • On-card switching regulators
  • Positive to negative converter

  • LCD-TV SMPS

  • Adjustable output voltage range, 1.2V to 37V +/-4% max over line and load
  • Available in TO-220 and D2PAK packages
  • Guaranteed 1A output load current
  • Input voltage range up to 40V
  • Excellent line and load regulation specifications
  • 150 kHz fixed frequency internal oscillator
  • TTL shutdown capability
  • Low power standby mode, Iq typically 80 µA
  • Uses readily available standard inductors
  • Thermal shutdown and current limit

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LM2595DSADJR4G

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Active

CAD Model

Pb

A

H

P

D2PAK-5

936A-02

1

235

REEL

800

N

Step-Down

Voltage Mode

4.5

40

1.25

1

85

150

$0.9602

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Reliability Data

Die Related Summary Data

Device: LM2595DSADJR4G

Equivalent to wafer fab process: BP STD LINEAR

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

BP STD LINEAR

10

12120914040

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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