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9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
9.1 Quadruple Boosting + Regulator
Figure 9.1 shows a "quadruple boosting + 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
pin.
REG
V
REG
V
DD
VI
Figure 9.1 Quadruple boosting + regulator connection example
Figure 9.1 Setting conditions
Internal clock
Booster
Regulator
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.
S1F76540M0C Series Technical Manual
(Rev.1.1)
9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
CO
+
1
CREG
+
2
R1
R2
3
4
5
+
6
CI
7
8
:
ON (Low output mode)
:
ON
:
ON (Select CT0 = -0.05%/°C.)
1
VO
C2P
16
VRI
C2N
15
V
C3N
14
REG
RV
C1N
13
V
C1P
12
DD
FC
VI
11
TC1
POFF1X
10
TC2
POFF2X
9
EPSON
+
C2
C3
C1
+
+
19
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