Datasheet

t (s)
I
L_AVG
I
SW_AVG
D*Ts Ts
D*Ts Ts
I
L
(A)
I
D
(A)
L
V
IN
L
VV
OUTIN

L
VV
OUTIN
-
(a)
(b)
I
SW
(A)
(C)
I
D_AVG
=I
OUT_AVG
t (s)
t (s)
D*Ts
Ts
L
V
IN
'i
L
LM3488
LM3488-Q1
www.ti.com SNVS089M –JULY 2000–REVISED MARCH 2013
Figure 33. A. Inductor Current B. Diode Current C. Switch Current
If V
L
(t) is constant, di
L
(t)/dt must be constant. Hence, for a given input voltage and output voltage, the current in
the inductor changes at a constant rate.
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