HT75XX-2
Circuit for Increasing Output Voltage
V
I
N
V
I
N
V
O
U
T
V
O
U
T
H
T
7
5
X
X
-
2
S
e
r
i
e
s
C
1
C
2
V
X
X
R
1
1
m
0
F
1
m
0 F
G
N
D
I
S
S
R
2
C
o
m
m
o
n
S
i
n
g
l
e
p
o
i
n
t
G
C
N
o
D
m
m
o
n
R2
R1
VOUT = VXX ( 1 +
) + ISS R2
Circuit for Increasing Output Voltage
V
I
N
V
I
N
V
O
U
T
V
O
U
T
H
T
7
5
X
X
-
2
S
e
r
i
e
s
C
1
C
2
V
X
X
R
1
1
m
0
F
1
m
0 F
G
N
D
I
D
S
S
1
C
o
m
m
o
n
S
i
n
g
l
e
p
o
i
n
t
G
C
N
o
D
m
m
o
n
VOUT = VXX + VD1
Constant Current Regulator
V
I
N
V
I
N
V
O
U
T
H
T
7
5
X
X
-
2
S
e
r
i
e
s
C
1
C
2
V
m
0 F
G
N
D
X
X
R
A
1
m
0
F
1
I
S
S
I
O
U
T
R
L
C
o
m
m
o
n
VXX
RA
IOUT
=
+ ISS
Dual Supply
I
C
1
V
I
N
V
I
N
V
O
U
T
H
T
7
5
X
X
-
2
V
O
U
T
S
e
r
i
e
s
C
3
I
C
2
1
m
0 F
G
N
D
V
I
N
V
O
U
T
H
T
7
5
X
X
-
2
S
e
r
i
e
s
V
O
U
T
C
1
C
2
G
N
D
R
1
1
m
0
F
1
m
0 F
C
o
m
m
o
n
C
o
m
m
o
n
Rev. 1.00
5
October 6, 2010
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
