17
18
■
Applications
unit: mm
SANYO: TQFP48J(7X7)
6-channel switching regulator control IC
■
Functions/Features
●
Low voltage (3V minimum) operation
●
Reference voltage precision: ± 1%
●
Independent standby function for each of the 6 channels
●
Is capable of driving MOS transistors
●
Synchronous recti
fi
cation: channels 1 and 2
●
Supports inverting step-up operation
Type
Input voltage Output voltage
Channels
Power stages
Package
Multiple power
supply
3V to 15V
Programmable
externally
6ch (Step up 2, down 4)
External
TQFP48J(7×7)
Power Supply ICs for Single Lens Reflex Digital Cameras
Power Supply ICs for Single Lens Reflex Digital Cameras
LV5603T
LV5603T
Block Diagram
V
O
1=1.5V/
IO
1=100mA
A
V
CC
V
CC
VBLAS
Lithium-ion
X
2
(5V to 8.4V)
VBA
TT
OUT1
OUT2
OUT1N
OUT2N
VS
OUT3
OUT4
OUT5
OUT6
+
--
SCP
SCPOUT
SCP
0.022
μ
F
VREF
VREF
1
μ
F
V
O
2=2.5V/
IO
2=100mA
B
V
O
3=3.3V/
IO
3=400mA
C
V
O
4=7V/
IO
4=10mA
V
O
5=15V/
IO
5=100mA
V
O
6=12V/
IO
6=100mA
ON/OFF5
ON/OFF6
D
E
F
+
+
-
+
+
-
to A
to B
+
--
+
+
-
to C
+
--
+
-
+
+
-
to D
+
--
+
+
-
to E
+
+
-
IN6
-
FB6
to F
CSOFT6
IN5
-
FB5
CSOFT5
IN4
-RE
FB4RE
IN4
-
FB4
CSOFT4
IN3
-
FB3
CSOFT3
IN2
-
FB2
CSOFT2
IN1
-
FB1
CSOFT1
GND
CTL
STBY6
STBY5
STBY4
STBY3
STBY2
STBY1
RT
CT
STBY
OSC
+
+-
+
+-
7.0
9.0
7.0
9.0
0.125
0.5
0.2
0.5
(0.75)
(1.0)
1.2max
0.1
1
12
25
36
13
48
24
37
■
Applications
unit: mm
SANYO: SSOP24(225mil)
3-channel switching regulator control IC
■
Functions/Features
●
Low voltage (3V minimum) operation
●
Reference voltage precision: ± 1%
●
Built-in standby circuit
●
Synchronous recti
fi
cation: channels 1 and 2
●
3-channel independent soft start
Type
Input voltage Output voltage
Channels
Power stages
Package
Multiple power
supply
3V to 15V
Programmable
externally
3ch (Step up 1, down 2)
External
SSOP24(225mil)
Power Supply ICs for Single Lens Reflex Digital Cameras
Power Supply ICs for Single Lens Reflex Digital Cameras
LV5655
LV5655
Block Diagram
+
+
-
+
+
-
+
+
-
-
-
+
-
-
+
-
-
+
-
CTRL
SGND
VS(PGND)
OUT3
UT2
OUT2N
OUT1
OUT1N
VBIAS
VCC
VREF
SCP
IN1-
CSOFT1
FB1
CSOFT2
IN2-
FB2
FB3
IN3-
CSOFT2
SYN1
SYN2
RT
3
4
5
6
7
8
9
10
11
12
13
24
23
22
21
20
18
17
16
15
14
19
2
1
6.4
6.5
0.5
4.4
(0.5)
(1.3)
24
13
1
12
0.22
0.5
0.15
0.1
1.5max
