Step-Up DC/DC Converter
High Efficiency PFM
ST1638
ABSOULTE MAXIMUN RATINGS
( Ta=25℃, unless otherwise specified.)
The following ratings designate persistent limits beyond which damage to the device may occur.
Symbol
V
OUT
V
SW
I
SW
Pd
Pj
Tstg
Tlead
Parameter
DC Supply Vlotage
SW Pin Voltage
Switching Current
Power Dissipation @ Ta=25℃* SOT-89
SOT-23
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperaature for 10 sec
Value
6
6
0.6
0.5
0.25
-40 to 85
-65 to 150
Unit
V
V
A
W
℃
℃
SOT-89
260
℃
SOT-23
220
Thermal Resistance Junction-Case(*)
SOT-89
100
Rθjc
℃/W
SOT-23
95
(*)The power dissipation and thermal resistance are evaluated under copper board mounted with free air
conditions.
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
TEL: (650) 9389294 FAX: (650) 9389295
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