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LM2673SX-5.0
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所属类别:低压降线性稳压器
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产品名称:3A降压稳压器与可调电流限制
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厂商:NSC
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生产批号:09+
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封装:TO-263
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库存状态:有库存
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库存量:5800
- 最低订购量:1
- 详细资料:
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peculiarity
- Efficiency up to 94%
- Easy-to-use design (with off-the-shelf external components)
- The resistor programmable peak current is limited to a range of 2A to 5A.
- 150mΩ DMOS output switch
- Fixed output and adjustable (1.2V to 37V) versions of 3.3V, 5V and 12V
- The entire line exceeds up to ± 2% output tolerance and load conditions
- Wide input voltage range from 8V to 40V:
- 260 kHz fixed frequency internal oscillator
- Soft start capability
- Operating junction temperature range from -40 to +125 °C
illustrate
TheLM2673 series regulators are monolithic integrated circuits that are buck (buck) switching regulators capable of driving loads up to 3A with excellent line and load regulation characteristics. High efficiency (> 90%) is obtained by using a low-on-resistance DMOS power switch. The series includes fixed output voltages of 3.3V, 5V and 12V and adjustable output versions.
The concept of the SIMPLE SWITCHER provides a complete design with the use of a minimum number of external components. A higher fixed frequency oscillator (260KHz) allows the use of smaller size components. A standard inductor for a home with LM2673 is offered by several manufacturers, greatly simplifying the design process.
Other features include the inclusion of a soft-start timing capacitor to gradually turn on the regulator's ability to input inrush current at power-up. The LM2673 series also features built-in thermal shutdown and resistive programmable current limiting power MOSFET switches in case of device and load circuit failures. The output voltage is guaranteed to be a tolerance of ± 2%. The clock frequency is controlled at tolerance ± 11%.
apply
- Simple design, high efficiency (> 90%), step-down switching regulator
- Efficient system pre-regulator linear regulator
- Battery charger
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