Diodes AP1539 - Manual (Page 4)

AP1539
18V 4A 300KHz BUCK CONVERTER
AP1539 Rev. 4 4 of 13 OCTOBER 2009
DS31477 www.diodes.com © Diodes Incorporated
Absolute Maximum Ratings
Symbol Parameter Rating Unit
ESD HBM Human Body Model ESD Protection 5.5 KV
ESD MM Machine Model ESD Protection 200 V
V
CC
V
CC
Pin Voltage V
SS
- 0.3 to V
SS
+ 20 V
V
FB
Feedback Pin Voltage V
SS
- 0.3 to V
CC
V
V
EN
EN Pin Voltage V
SS
- 0.3 to V
CC
V
V
OUT
Switch Pin Voltage V
SS
- 0.3 to V
CC
V
P
D
Power Dissipation Internally limited mW
T
J
Operating Junction Temperature Range -40 to +125 o C
T
ST
Storage Temperature Range -65 to +150
o
C
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
Symbol Parameter Min Max Unit
V
IN
Input Voltage (Note 4) 3.6 18 V
I
OUT
Output Current 0 4 A
T
A
Operating Ambient Temperature - 20 + 85
o
C
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.