9. REFERENCE: EXTERNAL CONNECTION EXAMPLES
20
EPSON
S1F76540M0C Series Technical Manual
(Rev.1.1)
9.2 3rd Bo Regulator
Perform 3rd boosting in the negative direction for input voltage VI, and generate the stabilized voltage in the
VREG pin.
Figure 9.2 shows a connection example.
Figure 9.2 3rd bo regulator connection example
Figure 9.2 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
X3N
C1N
C1P
VI
POFF1X
POFF2X
2
3
4
5
6
7
8
10
9
11
12
13
14
15
16
1
C2
+
C1
+
CI
+
CREG
+
CO
+
VI
V
REG