All trademarks are the property of their respective owners.
DescriptionThe LM2596T-12/LF03 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 LM2596T-12/LF03 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 LM2596T-12/LF03 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 80μA 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.
Feature
- New product available:LMR33630 36-V, 3-A,400-kHz synchronous converter
- 3.3-V, 5-V, 12-V, and adjustable output versions
- Adjustableversion output voltage range: 1.2-V to 37-V ±4% maximum over line and loadconditions
- Available in TO-220 and TO-263 packages
- 3-Aoutput load current
- Input voltage range up to 40 V
- Requiresonly four external components
- Excellent line and load regulationspecifications
- 150-kHz Fixed-frequency internaloscillator
- TTL shutdown capability
- Low power standby mode,IQ, typically 80μA
- Highefficiency
- Uses readily available standardinductors
- Thermal shutdown and current-limit protection
- Create a custom design using the LM2596 with theWEBENCHPower Designer
All trademarks are the property of their respective owners.
DescriptionThe 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 80μA 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.
