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BD8649EFV-E2 Datasheet(PDF) 1 Page - Rohm |
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BD8649EFV-E2 Datasheet(HTML) 1 Page - Rohm |
1 / 14 page 1/13 www.rohm.com 2010.09 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. Single-chip Type with Built-in FET type Switching Regulators Flexible Step-down Switching Regulator with Built-in Power MOSFET BD8649EFV ● Description The BD8649EFV is a synchronous step-down switching regulator that integrates 2 low resistances N-channel MOSFETs. It achieves 3A continuous output current over a wide input supply range. Current mode operation provides fast transient response and easy phase compensation. ● Feature 1) Synchronous rectification with built-in FET type DC/DC converter 2) 3.0A output current 3) Range of operation power-supply voltage 4.5V~18V 4) Reference voltage FB 0.8V±1% 5) Programmable frequency 100kHz~600kHz 6) Over current protection function 7) Thermal shutdown function 8) Under voltage protection 9) Soft start time out function / Soft start delay circuit 10) Programmable OFFLATCH time ● Applications FPD,DVD,HDD Recorder,STB,Amusement,Other ● Absolute maximum rating (Ta=25℃) Parameter Symbol Ratings Unit Input supply voltage VIN 20 V BOOT terminal voltage VBOOT 28 V EN terminal voltage VEN GND-0.3 ~ VIN+0.3 V Input terminal voltage VINP *1 GND-0.3 ~ 7 V SW terminal voltage VSW GND-0.3 ~ VIN+0.3 V Output current IOUT 3.5 *2 A Power dissipation Pd 3.2 *2 W Operating temperature Topr -20 ~ 85 ℃ Storage temperature Tstg -55 ~ 150 ℃ *1 VINP Application terminal: SS/DELAY, FB, FC, RT, PSET *2 (70mm×70mm, thickness 1.6mm, and four layer glass epoxy substrates)When mounting substrate and the package back exposure part are connected with solder Operating at higher than Ta=25℃, 25.6mW shall be reduced per 1 ● Operation condition Parameter Symbol Ratings Unit Min. Typ. Max. Input supply voltage VIN 4.5 - 18.0 V Output current IOUT - - 3.0 A * This product is not designed for protection against radioactive rays. No.10027EAT45 |
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