STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8533 Series
Rev.3.0_00
Seiko Instruments Inc.
6
Absolute Maximum Ratings
Table 2
(Ta = 25°C unless otherwise specified)
Parameter Symbol Absolute Maximum Rating Unit
VIN pin voltage V
IN
V
SS
− 0.3 to V
SS
+ 18 V
VOUT pin voltage V
OUT
V
SS
− 0.3 to V
SS
+ 18 V
ON/OFF pin voltage V
ON/OFF
V
SS
− 0.3 to V
SS
+ 18 V
CSS pin voltage V
CSS
V
SS
− 0.3 to V
IN
+ 0.3 V
NDRV pin voltage V
NDRV
V
SS
− 0.3 to V
IN
+ 0.3 V
PDRV pin voltage V
PDRV
V
SS
− 0.3 to V
IN
+ 0.3 V
NDRV pin current I
NDRV
±100 mA
PDRV pin current I
PDRV
±100 mA
300 (When not mounted on board) mW
Power dissipation P
D
700
*1
mW
Operating ambient temperature T
opr
−40 to +85 °C
Storage temperature T
stg
−40 to +125 °C
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
(1) When mounted on board (2) When not mounted on board
0
50 100
150
600
400
200
0
Power dissipation (P
D
) [mW]
Ambient temperature (Ta) [°C]
500
300
100
700
800
0
50 100
150
300
200
100
0
Power dissipation (P
D
) [mW]
Ambient temperature (Ta) [°C]
400
Figure 3 Power Dissipation of Package
