ap2203k-3.3tre1 BCD Semiconductor Manufacturing Limited, ap2203k-3.3tre1 Datasheet - Page 17

• Manufacturer Part Number: ap2203k-3.3tre1
• Description: 150ma Rf Uldo Regulator With Error Flag
• Manufacturer: BCD Semiconductor Manufacturing Limited

Application Information
Input Capacitor
A 1
placed between V
Output Capacitor
It is required to prevent oscillation. 1.0
is recommended The output capacitor may be
increased to improve transient response.
Power Dissipation
Thermal shutdown may take place if exceeding the
maximum power dissipation in application. Under all
possible operating conditions, the junction tempera-
ture must be within the range specified under abso-
lute maximum ratings to avoid thermal shutdown.
To determine if the power dissipated in the regulator
reaches the maximum power dissipation (see figure
15), using:
T
P
Mar. 2006 Rev. 1. 0
150mA RF ULDO REGULATOR WITH ERROR FLAG
J
D
= P
=(V
P
F minimum capacitor is recommended to be
D
IN
*
T
-V
JA
OUT
+ T
)*I
A
IN
OUT
and GND.
+V
IN
*I
GND
P
F minimum
17
Where: T
ings for the junction temperature; V
ignored due to its small value.
T
required since the package alone will dissipate
enough heat to satisfy these requirements unless the
calculated value for power dissipation exceeds the
limit.
Take 3.0V version as an example:
I
(150
Therefore, for good performance, please make sure
that input voltage is less than 6.333V without heat-
sink when T
OUT
J(max)
o
=150mA, T
C
-50
is 150
BCD Semiconductor Manufacturing Limited
J
d
o
C
T
A
)/(0.15A*200
J(max)
=50
o
C
A
while
o
=50

C.
T
J(max)
o
C, V
T
JA
Preliminary Datasheet
o
is 200
C/W
is absolute maximum rat-
IN(Max)
)+3.0V=6.333V
o
C
/W, no heatsink is
is:
IN
*I
GND
AP2203
can be