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LM22670MRE-ADJ
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所属类别:低压降线性稳压器
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产品名称:第3A的SIMPLE SWITCHER ®,降压稳压器具有可调节的软启动和电流限制
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厂商:NSC
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生产批号:10+
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封装:8PSOP
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库存状态:有库存
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库存量:5000
- 最低订购量:1
- 详细资料:
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peculiarity
- Wide input voltage range: 4.5V to 42V
- Internally compensated voltage mode control
- Ceramic capacitors with stable low ESR
- 120 mOhm N-channel MOSFET - 263 thin package
- The 100 milliohm N-channel MOSFETs are available in a PSOP-8 package
- Output Voltage Options:
- , (refers to as low as 1.285V output)
- -5.0 (when the output is fixed at 5V)
- ± 1.5% feedback reference accuracy
- The switching frequency is 500kHz
- -40°C to 125°C operating junction temperature range
- Adjustable soft start
- Adjustable current limit
- Integrated starter diode
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Full WEBENCH ® enable
- Buck and reversed-phase buck boost applications
illustrate
The Regulator's LM22673 series microcontrollers provide a step-down positive (step-down) switching regulator to drive all integrated circuits with load capacity of superior voltage and load regulation characteristics up to 3A. High efficiency ("90%) is obtained through the use of low-resistance N-channel MOSFETs. The series consists of a fixed 5V output and an adjustable version.
On a simple switch ® The concept provides an easy-to-use complete design with minimal number of external components and national WEBENCH ® Design tools. WEBENCH of National Semiconductor ® Tools include functions for external component calculations, electrical simulation, thermal simulation, etc., and build-up of IT boards for ease of design. The clock switching frequency is made by an internal fixed frequency oscillator, operating at 500 kHz. The LM22673 series also features built-in thermal shutdown and current limiting. The current limiting threshold can be adjusted by means of an external resistor. The adjustable soft-start feature provides the selection of an appropriate external soft-start capacitor.
apply
- Industrial control
- Telecommunications and data communication systems
- Embedded systems
- Automotive telematics and body electronics
- Conversion is done by standard 24V, 12V and 5V input rails
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