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LM2596S-3.3/NOPB ACTIVE

SIMPLE SWITCHER® 4.5V to 40V, 3A Low Component Count Step-Down Regulator

Inventory: 5,103
 

Quality information

RoHS Exempt
REACH Affected
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-245C-168 HR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
TO-263 (KTT) | 5 45 | TUBE
Package | Pins TO-263 (KTT) | 5
Package qty | Carrier 45 | TUBE
Operating temperature range (°C)
View TI packaging information

Features for the LM2596

  • New product available: LMR33630 36-V, 3-A, 400-kHz synchronous converter
  • 3.3-V, 5-V, 12-V, and adjustable output versions
  • Adjustable version output voltage range: 1.2-V to 37-V ±4% maximum over line and load conditions
  • Available in TO-220 and TO-263 packages
  • 3-A output load current
  • Input voltage range up to 40 V
  • Requires only four external components
  • Excellent line and load regulation specifications
  • 150-kHz Fixed-frequency internal oscillator
  • TTL shutdown capability
  • Low power standby mode, IQ, typically 80 µA
  • High efficiency
  • Uses readily available standard inductors
  • Thermal shutdown and current-limit protection
  • Create a custom design using the LM2596 with the WEBENCH Power Designer

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Description for the LM2596

The LM2596 series of regulators are monolithic integrated circuits that provide all theactive functions for a step-down (buck) switching regulator, capable of driving a 3-A load withexcellent 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 andinclude internal frequency compensation, and a fixed-frequency oscillator.

The LM2596 series operates at a switching frequency of 150 kHz, thus allowing smallersized filter components than what would be required with lower frequency switching regulators.Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pinTO-263 surface mount package.

The new product,LMR33630,offers reduced BOM cost, higher efficiency, and an 85% reduction in solution size among many otherfeatures. See thedevicecomparison table to compare specs.StartWEBENCH Design with LMR33630.

A standard series of inductors are available from several different manufacturersoptimized for use with the LM2596 series. This feature greatly simplifies the design of switch-modepower supplies.

Other features include a ±4% tolerance on output voltage under specified input voltageand 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 frequencyreducing current limit for the output switch and an overtemperature shutdown for completeprotection under fault conditions.

Pricing


Qty Price (USD)
1-99 3.974
100-249 3.24
250-999 2.547
1,000+ 2.16

Additional package qty | carrier options

Package qty | Carrier 500 | LARGE T&R
Inventory 14,808
Qty | Price (USD) 1ku | 1.8 1-99 3.636 100-249 3.186 250-999 2.234 1,000+ 1.8
Custom reel may be available