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通嘉電源管理IC LD7241A

產(chǎn)品價(jià)格：: 電議

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供應(yīng)商等級(jí)：: 免企業(yè)未認(rèn)證

經(jīng)營(yíng)模式：: 貿(mào)易商

企業(yè)名稱：: 深圳華矽電子有限公司

所屬地區(qū)：: 廣東深圳市

發(fā)布時(shí)間：: 2014/6/5 10:31:54

86 0755 33515240

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深圳華矽電子有限公司

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所在地：廣東深圳市

主營(yíng)產(chǎn)品：集成電路IC;MOS管;可控硅;調(diào)光電源;肖特基

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General Dcription

The LD7412 is a high efficiency asynchronous buck converter with a constant-frequency, and voltage-mode architecture. It achiev 2A continuous output current over a wide input voltage ranging from 4.3V to 18V. The IC provid a feed forward voltage mode operation to achieve the fast line-transient rponse. The LD7412 also provid soft-start function to prevent overshoot during startup.
Fault condition protections include cycle-by-cycle current limiting and hiccup overload protection, which can reduce the operation frequency from 400kHz to 50kHz.
The LD7412 minimiz the number of external components to complete a 2A step-down DC-DC converter solution.

Featur

• High Efficiency: Up to 90%
• Wide Operating Input Voltage Range: 4.3V to 18V
• Adjustable Output Voltage Range: 0.8V to Vin.
• Duty Ratio: 0% to 100% PWM control
• Oscillation Frequency: 400kHz t.
• Cycle-by-Cycle Current Limiting
• Thermal Shutdown
• Stable with Low R Output Ceramic Capacitors
• Built-in internal SW P-channel MOS
• Internal Soft-start function
• Under Voltage Lockout

Applications

• Distributed Power Systems
• DVD-Video Player
• Per-Regulator for Linear Regulator
• Telecom Equipment
• Microprocsor core supply
• LCD monitor and TV

Tical Application