s-8460 Seiko Instruments Inc., s-8460 Datasheet - Page 4

• Manufacturer Part Number: s-8460
• Description: Step-up Or Down, Single-coil, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

4
STEP-UP OR DOWN, SINGLE-COIL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8460
Absolute Maximum Ratings
*1. Only capacitor C
*2. The T pin should be connected to GND.
*3. When mounted on board
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
VIN pin voltage
FB pin voltage
ON/OFF pin voltage
CSS pin voltage
CPRO pin voltage
BST pin voltage
BST pin − LX pin voltage
LX pin voltage
EXT1 pin voltage
EXT2, 3 pin voltage
EXT1, 2, 3 pin current
LX pin current
BST pin current
VL pin voltage
VL pin current
T pin voltage
Power dissipation
Operating ambient temperature
Storage temperature
(1) When mounted on board
[Mounted board]
damage. These values must therefore not be exceeded under any conditions.
(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name : JEDEC STANDARD51-7
1200
1000
800
600
400
200
*2
0
*1
*1
0
Parameter
Ambient temperature Ta (°C)
VL
and Schottky diode SD2 can be connected to this pin.
50
100
Figure 3 Power Dissipation of Packages
V
V
V
V
V
V
V
V
V
V
I
I
I
V
I
V
P
T
T
150
EXT1, 2, 3
LX
BST
VL
Seiko Instruments Inc.
opr
stg
IN
FB
ON/OFF
CSS
PRO
BST
BST
LX
EXT1
EXT2, 3
L
T
D
Symbol
− V
LX
Table 2
(2) When not mounted on board
400 (When not mounted on board)
Absolute Maximum Rating
V
400
300
200
100
500
V
V
V
V
V
V
V
V
V
LX
V
SS
SS
SS
SS
SS
SS
SS
SS
SS
0
SS
− 0.3 to V
− 0.3 to V
− 0.3 to V
− 0.3 to V
− 0.3 to V
− 0.3 to V
0
− 0.3 to V
− 0.3 to V
− 0.3 to V
−40 to +125
− 0.3 to V
− 3 to V
−40 to +85
−0.3 to +7
1100
±100
±100
±100
±100
Ambient temperature Ta (°C)
(Ta = 25°C unless otherwise specified)
*3
SS
BST
SS
SS
SS
SS
SS
50
L
L
L
SS
+ 20
+ 0.3
+ 0.3
+ 0.3
+ 20
+ 20
+ 20
+ 25
+ 0.3
+ 20
+ 7
100
Rev.2.1
150
Unit
mW
mW
mA
mA
mA
mA
°C
°C
V
V
V
V
V
V
V
V
V
V
V
V
_00