S1F78100Y2A Epson Electronics America, Inc., S1F78100Y2A Datasheet - Page 178
S1F78100Y2A
Manufacturer Part Number
S1F78100Y2A
Description
High Precision Voltage Regulators
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1F78100Y2A.pdf
(258 pages)
- Current page: 178 of 258
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Output voltage adjustment
To ensure stable output, any circuit that adjusts the out-
put voltage must contain C1, R
switching current from affecting V
also satisfy the condition I
S1F70000 Series
Technical Manual
GND
V
I
Voltage adjustment
SCI7631M/C
circuit
V
SW
O
V
< I
O
R
.
A
C
I
O
O
and R
, the circuit must
R
R
A
B
I
R
B
(I
Step-up
voltage
C
output
O
. To stop
L
< I
R
)
EPSON
The following figure summarizes the relevant circuits
inside an S1F70000 series chip.
V
which provide the gate bias for the switching transistor
driving the inductor. The current drain I
the load and is typically 10 A. The current, I
through the internal resistors R1 and R2 is typically
1 A.
O
is connected to the level shift and buffer circuit,
V
SW
Buffer
shifter
Level
Controller
V
I
Comparator
S1F76300 Series
I
I
V
O1
O2
REF
O1
, varies with
R1
R2
I
O
V
4–33
O
O2
,
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