LM2595S-3.3 Part Information

Details for LM2595S-3.3 by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The LM2595 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixedfrequency oscillator. The LM2595 series operates at a switching frequency of 150 kHz, thus allowing smaller-sized filter components than what would be needed with lowerfrequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface-mount package. Typically, for output voltages less than 12 V, and ambient temperatures less than 50°C, no heat sink is required.

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Part Features

  • 150-kHz Fixed-Frequency Internal Oscillator
  • 3.3-V, 5-V, 12-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range, 1.2 V to 37 V u00b14% Maximum Over Line and Load Conditions
  • Available in TO-220 and TO-263 Surface-Mount Packages
  • Ensured 1-A Output Load Current
  • Excellent Line and Load Regulation Specifications
  • High Efficiency
  • Input Voltage Range Up to 40 V
  • Low Power Standby Mode, IQ, Typically 85 u03bcA
  • Requires Only 4 External Components
  • TTL Shutdown Capability
  • Thermal Shutdown and Current-Limit Protection
  • Uses Readily Available Standard Inductors

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 40V
DC / DC Converter IC Case TO-263
No. of Pins 5Pins
Output Current 1A
Output Voltage Nom. 3.3V
Switching Frequency 150kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Accuracy % 4%
Base Number 2595
Frequency 150kHz
IC Generic Number 2595
No. of Outputs 1Outputs
Operating Temperature Min -40°C
Operating Temperature Range -25°C to +125°C
Output Current Max 1A
Output Voltage 3.3V
Power Supply IC Type Step-down switching regulator
Primary Input Voltage 12V
Supply Voltage Max 40V
Supply Voltage Min 4.5V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down Switching
RoHS Compliant

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