bd9862muv ROHM Co. Ltd., bd9862muv Datasheet - Page 3

• Manufacturer Part Number: bd9862muv
• Description: 5v Input Multi-channel System Power Supply Ic
• Manufacturer: ROHM Co. Ltd.

●Power Dissipation Reduction
© 2010 ROHM Co., Ltd. All rights reserved.
BD9862MUV
www.rohm.com
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
④ 3.56W
③ 2.21W
② 0.70W
① 0.34W
25
①: Stand-alone IC
②: One-layer substrate
③: Four-layer substrate
④: Four-layer substrate
Ambient Temperature Ta (℃)
(Surface-layer heat release copper foil 0mm2)
(Surface and inside-layer heat release copper foil 10mm2)
(2, 3 layer heat release copper foil 5505mm2)
(All-layers heat release copper foil 5505mm2)
50
75
① : θja = 367.6℃/W
② : θja = 178.6℃/W
③ : θja =
④ : θja =
100
3/16
56.6℃/W
35.1℃/W
125
150
Technical Note
2010.03 - Rev.A