Datasheet

APPLICATION INFORMATION
V
out
) V
F
V
in
(
min
)
* V
sat
* V
out
Ť
V
out
Ť
) V
F
V
in
* V
sat
V
out
) V
F
* V
in
(
min
)
V
in
(
min
)
* V
sat
1
f
1
f
1
f
t
on
) t
off
t
on
t
off
) 1
t
on
) t
off
t
on
t
off
) 1
t
on
) t
off
t
on
t
off
) 1
ǒ
t
on
) t
off
Ǔ
* t
off
ǒ
t
on
) t
off
Ǔ
* t
off
ǒ
t
on
) t
off
Ǔ
* t
off
4 10
*5
t
on
4 10
*5
t
on
4 10
*5
t
on
2I
out
(
max
)
2I
out
(
max
)
ǒ
t
on
t
off
) 1
Ǔ
2I
out
(
max
)
ǒ
t
on
t
off
) 1
Ǔ
0.3
I
pk
(
switch
)
0.3
I
pk
(
switch
)
0.3
I
pk
(
switch
)
ǒ
ǒ
V
in
(
min
)
* V
sat
Ǔ
I
pk
(
switch
)
Ǔ
t
on
(
max
)
ǒ
ǒ
V
in
(
min
)
* V
sat
* V
out
Ǔ
I
pk
(
switch
)
Ǔ
t
on
(
max
)
ǒ
ǒ
V
in
(
min
)
* V
sat
Ǔ
I
pk
(
switch
)
Ǔ
t
on
(
max
)
9
I
out
t
on
V
ripple
(
pp
)
9
I
out
t
on
V
ripple
(
pp
)
I
pk
(
switch
)
ǒ
t
on
) t
off
Ǔ
8V
ripple
(
pp
)
MC33063A-Q1
www.ti.com ................................................................................................................................................ SLLS654B – APRIL 2005 – REVISED SEPTEMBER 2008
CALCULATION STEP UP STEP DOWN VOLTAGE INVERTING
t
on
/t
off
(t
on
+ t
off
)
t
off
t
on
C
T
I
pk(switch)
R
SC
L
(min)
C
O
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