LM2596T-ADJ/NOPB

The LM2596 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable
of driving a 3-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 LM2596 series operates at a switching frequency
of 150 kHz, thus allowing smaller sized filter
components than what can 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-pin TO-263 surface mount
package.
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Category: Power Management (PMIC)

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SPECIFICATION

• New product available:
– LMR51430 4.5 to 36-V, 3-A, 500-kHz and 1.1-
MHz synchronous converter
• For faster time to market:
– TLVM13630 3 to 36-V, 3-A, 200-kHz to 2.2-MHz
power module
• 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