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ADT7310 (ADTech) : Total 15 Pages

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ADT7310
General Description
The ADT7310 is system specific power supply IC
that is suitable for color CCD camera.
Other features include over-current protection,
thermal shutdown. It reduces design complexity
and external component count.
ADT7310
YYWW
Package outline of the ADT7310
Features
Applications
• Input voltage range : 4.75V to 18V
• Color CCD camera
• Multiple output voltage channel available
• CCTV camera
- 2 channel 3.3V outputs , 200mA / 60mA max.
• distributed power system
- 1.8V output , 40mA max.
(3.3V / 1.8V / 5V / 15V / -7V)
- 5V boost converter output , 100mA max.
- 15V output , 10mA max.
- Externally adjustable negative voltage output (-7V typical)
• Power-on-reset output & power sequence
• Protection : thermal shutdown , over-current protection
• Small size(5x5 mm2 body) and thermally enhanced 28 Pin MLF Package
Typical Application Circuit
VIN
C100
L2
QN1
Rs2
U1
CF1
D2
1.8V
C2
CL7
CL1
5V
C200
U2
CF2
CL2
Rs1
QP1
C10
L1 VIN2
C1
D1
CL4
U0
(ADT7310)
C30 Ct
RBO C40
CL5
U3
CF3
Rn2
CL6
Rn1 CL3
15V
3.3VD
3.3VA
* This specifications are subject to be changed without notice
-7V
Oct. 17. 2008 / Rev. 0.0
1/15 http://www.ad-tech.co.kr
www.DataSheet.in



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ADT7310
Part List
Component
Type
U0 IC
U1, 2, 3
IC
QP1 Chip transistor
QN1 Chip transistor
D1, D2
Chip SBD
L1 Chip inductor
L2 Chip inductor
C1 , 2
MLCC
C100
Tantalum capacitor
C200
MLCC
CF1 , 2 , 3
MLCC
CL1 , 2 , 3
MLCC
C10 MLCC
C20 MLCC
C30 MLCC
Ct MLCC
CL4, 5, 7
MLCC
CL6 MLCC
C40 MLCC
Rs1 , 2
Chip resistor
Rn1 Chip resistor
Rn2 Chip resistor
SBD (Schottky Barrier Diode)
Value ( Model )
ADT7310
BAT54SWT1
2SB1424
MMBT4401LT1
RSX101M-30
47uH / 590mA (SLF6028T-470MR59)
47uH / 590mA (SLF6028T-470MR59)
10uF / 10V / X5R
10uF / 25V (T91C106K025AT)
0.1uF / 25V
1uF / 25V / X5R
2.2uF / 25V / X5R
1nF
22nF
22nF
18pF
2.2uF / 25V / X5R
4.7uF / 25V / X5R
10nF
0.1/ 1%
45.3/ 1%
12.1/ 1%
Manufacturer
ADTech
ON Semiconductor
ROHM
ON Semiconductor
ROHM
TDK
TDK
Murata
KEMET
-
Murata
Murata
-
-
-
-
Murata
Murata
-
-
-
-
* This specifications are subject to be changed without notice
Oct. 17. 2008 / Rev. 0.0
2/15 http://www.ad-tech.co.kr
www.DataSheet.in



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ADT7310
Pin Configuration
28 27 26 25 24 23 22
1 21
2 20
3 19
4 ADT7310 18
5 17
6 16
7 15
Pin Description
8 9 10 11 12 13 14
I : Input , O : Output , IO : Input/Output , P : Power , G : Ground , A : Analog , D : Digital
Pin No.
1
Name
RS2
I/O Type
Description
I A Current sensing and voltage feed-forward for boost converter
2
VIN1
-
P Main power input
3 RS1 I A Current sensing and voltage feed-forward for buck converter
4
PWM
O
D PWM output for buck converter
5 CC1 O A Capacitor terminal for phase compensation of buck converter
6
GND2
-
G Ground
7
VIN2
-
P Second power input
8 VO1 O A 3.3V output for digital part
9
GND3
-
G Ground
10
DLY
O
A Delay time control for RBO signal
11
RBO
O
D Power on reset output
12 CT O A Capacitor terminal for tuning oscillation frequency
13 VO2 O A 3.3V output for analog part
14
GND4
-
G Ground
15
VHO
O
A 15V output for CCD positive voltage
16
VREG
O
A Internal reference voltage output
17
VNO1
I
A Feedback voltage input for VNO (-7V typical)
18
DRV3
O
D Driving signal output of charge pump inverter
19
GND5
-
G Ground
20
VIN5
-
P Power input for 15V output
21
DRV2
O
D Driving signal output of charge pump doubler
22
VIN4
-
P Power input for charge pump block
23
GND6
-
G Ground
24
VLO
O
A 1.8V output
25
VIN3
-
P Feedback voltage input for boost converter
26
DRV1
O
D PWM output for boost converter
27 CC2 O A Capacitor terminal for phase compensation of boost converter
28
GND1
-
G Ground
* This specifications are subject to be changed without notice
Oct. 17. 2008 / Rev. 0.0
3/15 http://www.ad-tech.co.kr
www.DataSheet.in



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Functional Block Diagram
ADT7310
VIN1
RS1
PWM
CC1
VIN2
RS2 CC2 DRV1 5V 1.8V
Internal
Reg
BIAS
OSC
PWM
controller
PWM
controller
Thermal
Shutdown
Power Sequencer
LDO
C/P
doubler
C/P
inverter
feedback
VIN4
DRV2
VIN5
DRV3
VNO1
LDO
POR
LDO
LDO
15V
3.3VD
RBO
3.3VA
* This specifications are subject to be changed without notice
Oct. 17. 2008 / Rev. 0.0
4/15 http://www.ad-tech.co.kr
www.DataSheet.in






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