رگولاتور LM2576T-5V 3A
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رگولاتور LM2576T-12V 3A

رگولاتور LM2576 که یک مبدل DC به DC سوئیچینگ مناسب برای جریان 3 آمپر با ولتاژ خروجی 12 ولت

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FEATURES DESCRIPTION
The LM2596 series of regulators are monolithic 23• 3.3V, 5V, 12V, and Adjustable Output Versions
integrated circuits that provide all the active functions
• Adjustable Version Output Voltage Range, for a step-down (buck) switching regulator, capable of
1.2V to 37V ±4% Max Over Line and Load driving a 3A load with excellent line and load
Conditions regulation. These devices are available in fixed output
• Available in TO-220 and TO-263 Packages voltages of 3.3V, 5V, 12V, and an adjustable output
• Ensured 3A Output Load Current version.
• Input Voltage Range Up to 40V Requiring a minimum number of external
• Requires Only 4 External Components components, these regulators are simple to use and
include internal frequency compensation , and a
• Excellent Line and Load Regulation fixed-frequency oscillator.
Specifications
The LM2596 series operates at a switching frequency
• 150 kHz Fixed Frequency Internal Oscillator of 150 kHz thus allowing smaller sized filter
• TTL Shutdown Capability components than what would be needed with lower
• Low Power Standby Mode, IQ Typically 80 μA frequency switching regulators. Available in a
• High Efficiency standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263
• Uses Readily Available Standard Inductors surface mount package.
• Thermal Shutdown and Current Limit A standard series of inductors are available from
Protection several different manufacturers optimized for use with
the LM2596 series. This feature greatly simplifies the
APPLICATIONS design of switch-mode power supplies.
• Simple High-Efficiency Step-Down (Buck) Other features include a ensured ±4% tolerance on
Regulator output voltage under specified input voltage and
• On-Card Switching Regulators output load conditions, and ±15% on the oscillator
• Positive to Negative Converter 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. (1)
(1) † Patent Number 5,382,918.

161603534
جدید
بسته بندی
TO-220
ولتاژ ورودی
14V - 37V
ولتاژ خروجی
12V
جریان
3A
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