AP1539 データシートの表示（PDF） - Diodes Incorporated.
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AP1539 Datasheet PDF : 13 Pages
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Absolute Maximum Ratings
AP1539
18V 4A 300KHz BUCK CONVERTER
Symbol
Parameter
Rating
ESD HBM Human Body Model ESD Protection
5.5
ESD MM Machine Model ESD Protection
200
VCC
VFB
VEN
VOUT
PD
TJ
TST
VCC Pin Voltage
Feedback Pin Voltage
EN Pin Voltage
Switch Pin Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
VSS - 0.3 to VSS + 20
VSS - 0.3 to VCC
VSS - 0.3 to VCC
VSS - 0.3 to VCC
Internally limited
-40 to +125
-65 to +150
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.
Recommended Operating Conditions
Unit
KV
V
V
V
V
V
mW
oC
oC
Symbol
Parameter
Min
Max
Unit
VIN
Input Voltage (Note 4)
IOUT
Output Current
TA
Operating Ambient Temperature
3.6
18
V
0
4
A
-20
+85
oC
Notes: 4. For the operations in low input voltage, AP1539 can tolerate down to 3.6V but max output current loading will be less than 4A. For nominal
applications in such low input voltage range, especially lower than 4V, a higher ROCSET with larger heat sink is recommended.
AP1539 Rev. 4
DS31477
4 of 13
www.diodes.com
OCTOBER 2009
© Diodes Incorporated
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