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Document 922-1
Coupled Inductors–MSC1278
For SEPIC Applications
The MSC1278 coupled inductors are designed with high leakage inductance for use in SEPIC applications. The loosely coupled windings (K ≈ 0.8) improve SEPIC efficiency by reducing circulating current and provide twice the ripple current reduction of separate inductors.
These inductors offer high efficiency and excellent current handling in a rugged, low cost part. They are well suited for use as a VRM inductors in high-current DC-DC converters and VRM/VRD controllers.
They can also be used as two single inductors connected in series or parallel.
01.428,34max
01.428,34max
123 X
Dot indicates pin1 Dash number
Internal code
0.317 8,05
max
0.197 5,0
0.197 5,0
34 21
0.138 3,5
0.
MSC1278 Datasheet
