MB3778P Fujitsu Microelectronics, Inc., MB3778P Datasheet - Page 17

• Manufacturer Part Number: MB3778P
• Description: Switching Regulator Controller
• Manufacturer: Fujitsu Microelectronics, Inc.

No V
V
USING THE R
The triangular waves, as shown in Figure “No V
the oscillator frequency by charging and discharging the capacitor connected to the C
value of the resistor connected to the R
In addition, when voltage level V
making the external circuit connections to adjust for the fact that I
the external circuits in determining the oscillator frequency (see Figure “V
from R
REF
/2 connection to external circuits from R
REF
T
/2 connection to external circuits from R
terminal”).
T
To external circuits
TERMINAL
(
V
REF
2
REF
)
/2 is output to external circuits from the RT terminal, care must be taken in
Triangular wave
(
2
V
R
REF
oscillator
2
T
I
T
I
RT
2
terminal.
)
Triangular wave
2
oscillator
R
T
I
REF
1
T
RT
I
terminal
1
/2 connection to external circuits from R
C
T
T
terminal
I
CT
1
C
T
I
CT
1
is increased by the value of the current I
I
CT
REF
I
V
RT
2R
REF
/2 connection to external circuits
T
I
CT
I
I
V
RT
1
2R
REF
T
terminal using the current
T
I
2
I
2
T
terminal”, act to set
MB3778
2
to
17