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參數(shù)資料
| 型號(hào)： | AP2202R-3.3TRE1 |
| 廠商： | BCD Semiconductor Manufacturing Limited |
| 英文描述： | 150mA RF ULDO REGULATOR |
| 中文描述： | 150mA的射頻ULDO調(diào)節(jié)器 |
| 文件頁(yè)數(shù)： | 30/33頁(yè) |
| 文件大?。?/td> | 274K |
| 代理商： | AP2202R-3.3TRE1 |
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150mA RF ULDO REGULATOR AP2202
Data Sheet
30
Mar. 2007 Rev. 1. 7
BCD Semiconductor Manufacturing Limited
Input Capacitor
A 1
μ
F minimum capacitor is recommended to be
placed between V
IN
and GND.
Output Capacitor
It is required to prevent oscillation. 1.0
μ
F minimum
is recommended when C
BYP
is unused. 2.2
μ
F mini-
mum is recommended when C
BYP
is 100pF. The out-
put capacitor may be increased to improve transient
response.
Noise Bypass Capacitor
Bypass capacitor is connected to the internal voltage
reference. A 100pF capacitor connected from BYP to
GND make this reference quiet, resulting in a
significant reduction in output noise, but the ESR
stable area will be narrowed.
The start-up speed of the AP2202 is inversely
proportional to the value of reference bypass
capacitor. In some cases, if output noise is not a
major concern and rapid turn-on is necessary, omit
C
BYP
and leave BYP open.
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
16,17), using:
T
J
= P
D
*
θ
JA
+ T
A
P
D
=(V
IN
-V
OUT
)*I
OUT
+V
IN
*I
GND
Where: T
J
≤
T
J(max)
,
T
J(max)
is absolute maximum rat-
ings for the junction temperature; V
IN
*I
GND
can be
ignored due to its small value.
T
J(max)
is 150
o
C
,
θ
JA
is 200
o
C
/W for SOT-23-5 pack-
age and 165
o
C
/W for SOT-89-3 package, no heatsink
is required since the package alone will dissipate
enough heat to satisfy these requirements unless the
calculated value for power dissipation exceeds the
limit.
Example: For 2.8V version packaged in SOT-23-5,
I
OUT
=150mA, T
A
=50
o
C, V
IN(Max)
is:
(150
o
C
-50
o
C
)/(0.15A*200
o
C/W
)+2.8V=6.133V
Therefore, for good performance, please make sure
that input voltage is less than 6.133V without heat-
sink when T
A
=50
o
C.
Application Information
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AP2202_07 | 150mA RF ULDO REGULATOR |
| AP2203 | 150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-2.5TR | 150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-2.5TRE1 | 150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-3.0TR | 150mA RF ULDO REGULATOR WITH ERROR FLAG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP2203 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-2.5TR | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-2.5TRE1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-3.0TR | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR WITH ERROR FLAG |
| AP2203K-3.0TRE1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR WITH ERROR FLAG |
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