MB39A112 Datasheet, PDF (27/35 Pages) Fujitsu Component Limited. – 3-ch DC/DC Converter IC

Example : Using the A916CY-3R3M
3.3 µH (allowable tolerance ± 20 %) , rated current = 2.57 A
• CH2
Peak value
VIN − Vo2
IL ≥ Io +
tON
2L
12 − 3.3
≥ 1.0 +
2 × 3.3 × 10^−6
≥ 1.15 A
1
×
2350 × 10³
× 0.275
Peak-to-peak value
VIN − Vo2
∆IL =
tON
L
12 − 3.3
=
3.3 × 10^−6
1
×
× 0.275
2350 × 10³
=: 0.309 A
Example : Using the A916CY-100M
10.0 µH (allowable tolerance ± 20 %) , rated current = 1.49 A
• CH3
Peak value
VIN − Vo3
IL ≥ Io +
tON
2L
12 − 5
≥ 0.3 +
2 × 10 × 10^−6
≥ 0.36 A
1
×
2350 × 10³
× 0.417
Peak-to-peak value
VIN − Vo3
∆IL =
tON
L
12 − 5
=
×
10 × 10^−6
=: 0.124 A
1
2350 × 10³
× 0.417
MB39A112
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