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參數(shù)資料
| 型號(hào)： | AP2202K-2.5TRE1 |
| 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)： | 11/13頁(yè) |
| 文件大?。?/td> | 176K |
| 代理商： | AP2202K-2.5TRE1 |
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150mA RF ULDO REGULATOR AP2202
Preliminary Datasheet
11
Aug. 2005 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
Application Information
External Capacitors
Regarding good performance of regulator stability,
external capacitors required by the AP2202 should
be prudently selected.
Input Capacitor
If there is more than 10 inches of wire between the
input and the AC filter, or if a battery is used as the
input, a 1
μ
F capacitor should be placed from IN to
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 470pF. The out-
put capacitor may be increased without limit for
large values to improve transient response.
In most cases, tantalum or aluminium electrolytic
capacitors are adequate.
Noise Bypass Capacitor
Bypass capacitor is connected to the internal voltage
reference. A 680pF capacitor connected from BYP to
GND leads reference to be quiet which results in a
significant reduction in output noise. When using
C
BYP,
output capacitors of 2.2
μ
F or greater are
required for better stability.
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.
Figure 15. Typical Application of AP2202
BYP
CBYP
470pF
EN
GND
+
AP2202-2.8V
V
IN
=3.8V
V
OUT
=2.8V
VOUT
VIN
2.2
μ
F
CIN
1.0
μ
F
tantalum
VIN
COUT
VOUT
Typical Application
ADJ
EN
GND
+
AP2202-ADJ
VIN
tantalum
R1
R2
optional
V
OUT
=1.25* (1+R2/R1)
VIN
CIN
1.0
μ
F
VOUT
CBYP
VOUT
COUT
2.2
μ
F
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP2202K-3.0TR | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR |
| AP2202K-3.0TRE1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR |
| AP2202K-3.3TR | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR |
| AP2202K-3.3TRE1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:150mA RF ULDO REGULATOR |
| AP2202K-3.3TRG1 | 制造商:Diodes Incorporated 功能描述:LDO CMOS LOWCURR SOT25 T&R 3K - Tape and Reel 制造商:Diodes Incorporated 功能描述:IC REG LDO 3.3V 0.15A SOT25 |
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