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RT7280 bảng dữ liệu(PDF) 8 Page - Richtek Technology Corporation

tên linh kiện RT7280
Giải thích chi tiết về linh kiện  2A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter
PDF  22 Pages
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nhà sản xuất  RICHTEK [Richtek Technology Corporation]
Trang chủ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT7280 bảng dữ liệu(HTML) 8 Page - Richtek Technology Corporation

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RT7274/79/80/81
8
DS7274/79/80/81-01 February 2013
www.richtek.com
©
Copyright 2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
External Bootstrap Capacitor (C6)
Connect a 0.1
μF low ESR ceramic capacitor between
BOOT and SW. This bootstrap capacitor provides the gate
driver supply voltage for the high side N-channel MOSFET
switch.
Over Temperature Protection
The RT7274/79/80/81 includes an over temperature
protection (OTP) circuitry to prevent overheating due to
excessive power dissipation. The OTP will shut down
switching operation when the junction temperature
exceeds 150
°C. Once the junction temperature cools
down by approximately 25
°C the IC will resume normal
operation with a complete soft-start. For continuous
operation, provide adequate cooling so that the junction
temperature does not exceed 150
°C.



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