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BD00GD0EFJ-E2 数据表(PDF) 8 Page - Rohm |
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BD00GD0EFJ-E2 数据表(HTML) 8 Page - Rohm |
8 / 12 page BD00HC0WEFJ Technical Note www.rohm.com 2010.04 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. 8/11 ● Evaluation Board Circuit ● Evaluation Board Parts List ● About Board Layout ・ Input capacitor Cin of VCC (Vin) should be placed very close to VCC(Vin) pin as possible, and used broad wiring pattern. Output capacitor Co also should be placed close to IC pin as possible. In case connected to inner layer GND plane, please use several through hole. ・ VFB pin has comparatively high impedance, and is apt to be effected by noise, so floating capacity should be minimum as possible. Please be careful in wiring drawing ・ Please take GND pattern space widely, and design layout to be able to increase radiation efficiency. ・ For output voltage setting Output voltage can be set by FB pin voltage(0.800V typ.)and external resistance R1, R2. (The use of resistors with R1+R2=5k to 90k is recommended) Designation Value Part No. Company Designation Value Part No. Company R1 43kΩ MCR01PZPZF4302 ROHM C4 ‐ ‐ ‐ R2 8.2kΩ MCR01PZPZF8201 ROHM C5 1μF CM105B105K16A KYOCERA R3 ‐ ‐ ‐ C6 R4 ‐ ‐ ‐ C7 ‐ ‐ ‐ R5 ‐ ‐ ‐ C8 ‐ ‐ ‐ R6 ‐ ‐ ‐ C9 ‐ ‐ ‐ C1 1μF CM105B105K16A KYOCERA C10 ‐ ‐ ‐ C2 ‐ ‐ U1 ‐ BD00HC0WEFJ ROHM C3 ‐ ‐ U2 ‐ ‐ ‐ VO EN GND VCC (Vi n) Cin R1 R2 Co VO = VFB× R1+R2 R2 N.C GND FB N.C N.C. VOUT 2 VOUT C7 3 4 7 5 U1 8 C1 C2 C3 R1 R2 R6 U2 C8 R4 R3 C6 C5 C4 R5 Gate C9 C10 1 VCC 6 EN GND SW1 EN |
类似零件编号 - BD00GD0EFJ-E2 |
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类似说明 - BD00GD0EFJ-E2 |
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