LM3488QMM National Semiconductor, LM3488QMM Datasheet - Page 15

• Manufacturer Part Number: LM3488QMM
• Description: LM3488/LM3488Q High Efficiency Low-Side N-Channel Controller for Switching Regulators; Package: MINI SOIC; No of Pins: 8; Container: Reel
• Manufacturer: National Semiconductor

If V
given input voltage and output voltage, the current in the in-
ductor changes at a constant rate.
L
(t) is constant, di
L
(t)/dt must be constant. Hence, for a
FIGURE 11. A. Inductor Current B. Diode Current
15
The important quantities in determining a proper inductance
value are I
tor current ripple). If Δi
will drop to zero for a portion of the cycle and the converter
L
(the average inductor current) and Δi
L
is larger than I
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L
, the inductor current
L
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(the induc-