9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
S1F76540M0C Series Technical Manual
EPSON
19
(Rev.1.1)
9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
9.1 Quadruple Bo Regulator
Figure 9.1 shows a “quadruple bo regulator” connection example that is standard in S1F76540. Perform
quadruple boosting in the negative direction for input voltage VI, and generate the stabilized voltage in the
V
REG
pin.
Figure 9.1 Quadruple bo regulator connection example
Figure 9.1 Setting conditions
Internal clock
: ON (Low output mode)
Booster
: ON
Regulator
: ON (Select CT0 = -0.05
%
/
°
C.)
Power-off method
Set the POFF1X pin to level LOW (VI); all circuits will be turned off.
About regulator
For information about the regulator setting method and notes, see Section 5.4.
Other setting conditions
(1) When using the high output mode
Connect the FC pin to VI.
(2) When changing the temperature coefficient CT
Change the TC1 and TC2 pins as shown in Table 5.3.
R1 R2
V
DD
VO
1
VRI
V
REG
RV
V
DD
FC
TC1
TC2
C2P
C2N
C3N
C1N
C1P
VI
POFF1X
POFF2X
2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
1
C2
+
C3
+
C1
+
CI
+
CREG
+
CO
+
VI
V
REG
