Ap7335a, Ordering information – Diodes AP7335A User Manual
Page 8
AP7335A
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
AP7335A
Document number: DS32259 Rev. 2 - 2
8 of 12
October 2011
© Diodes Incorporated
NEW PROD
UC
T
Application Note
(cont.)
Power Dissipation
The device power dissipation and proper sizing of the
thermal plane that is connected to the thermal pad is
critical to avoid thermal shutdown and ensure reliable
operation. Power dissipation of the device depends on
input voltage and load conditions and can be calculated by:
P
D
= (V
IN
- V
OUT
) X I
OUT
The maximum power dissipation, handled by the device,
depends on the maximum junction to ambient thermal
resistance, maximum ambient temperature, and
maximum device junction temperature, which can be
calculated by the following equation:
P
D
(max@T
A
) =
JA
R
)
A
T
-
C
145
(
θ
°
+
Ordering Information
AP7335A - XX XX - X
Packing
Package
7 : Tap e & Reel
50 : 5.0V
Output
SN : U-DFN2020-6
AP7335A - XX X - X
Packing
Package
7 : Tape & Reel
50 : 5.0V
Output
W : SOT25
Device
Package Code
Packaging
(Note 6)
7”/13” Tape and Reel
Quantity
Part Number Suffix
AP7335A-XXW-7
W
SOT25
3000/Tape & Reel
-7
AP7335A-XXSN-7
SN
U-DFN2020-6
3000/Tape & Reel
-7
Note:
6. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at