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S1142A Datasheet, PDF (6/32 Pages) Seiko Instruments Inc – HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series
Rev.4.2_00
 Absolute Maximum Ratings
Table 4
(Ta = +25°C unless otherwise specified)
Item
Symbol
Absolute Maximum Rating
Unit
Input voltage
VIN
VSS − 0.3 to VSS + 60
V
VON / OFF
VSS − 0.3 to VIN + 0.3
V
Output voltage
Power dissipation
VOUT
PD
VSS − 0.3 to VIN + 0.3
V
1900*1
mW
Junction temperature
Tj
−40 to +125
°C
Operation ambient temperature Topr
−40 to +85
°C
Storage temperature
Tstg
−40 to +125
°C
*1. When mounted on board
[Mounted board]
(1) Board size:
50 mm × 50 mm × t1.6 mm
(2) Board material: Glass epoxy resin (two layers)
(3) Wiring ratio: 50%
(4) Test conditions: When mounted on board (wind speed: 0 m/s)
(5) Land pattern: Refer to the recommended land pattern (drawing code: FH006-A-L-SD)
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.
2400
2000
1600
1200
800
400
0
0
50
100
150
Ambient temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Condition
HSOP-6 (When mounted on board)
Table 5
Power Dissipation
1900 mW
Thermal Resistance Value (θj − a)
53°C/W
6
Seiko Instruments Inc.