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參數(shù)資料
| 型號： | AP2201K2.6TRE1 |
| 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 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 157K |
| 代理商： | AP2201K2.6TRE1 |
150mA RF ULDO REGULATOR AP2201
Preliminary Datasheet
1
Jun. 2005 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
SOT-23-5
Figure 2. Package Type of AP2201
Figure 1. Typical Application of AP2201
General Description
The AP2201 is a 150mA output current fixed voltage
regulator designed to provide very low noise (45
μ
Vrms
at 80Hz-100KHz), ultra low dropout voltage (typically
165mV at 150mA), very low quiescent current (1
μ
A
maximum) and excellent power supply ripple rejection
(PSRR 75dB at 100Hz) in battery powered applica-
tions, such as handsets and PDAs and in noise sensitive
applications, such as RF electronics.
The AP2201 also features individual logic compatible
enable/shutdown control inputs, a low power shutdown
mode for extended battery life, over current protection,
over temperature protection, as well as reversed-bat-
tery protection.
The output capacitor of 1.0
μ
F minimum and 2.2
μ
F
minimum near its pin are recommended when C
BYP
is
not used and when C
BYP
is 470pF respectively. The
output capacitor should have 5
or less ESR, tantalum
or aluminium electrolytic capacitors are adequate.
Bypass capacitor is connected to the internal voltage
reference to quiet noise. Its recommended value is
from 470pF to 1nF. If output noise is not a major con-
cern and rapid turn-on is necessary, omit C
BYP
and
leave BYP open.
The AP2201 has 2.6V, 2.8V and 3.0V versions now.
The AP2201 is available in space saving 5-pin SOT-
23-5 package.
Features
·
·
·
Up to 150mA Regulator Output
Low Quiescent Current
Low Dropout Voltage: V
D
=165mV at 150mA
High Precision Output Voltage: ±1%
Output Noise: 45
μ
Vrms at 80Hz-100KHz
Good Ripple Rejection Ability: 75dB at 100Hz
and I
OUT
=100
μ
A
Tight Load and Line Regulation
Low Temperature Coefficient
Over Current Protection
Thermal Protection
Reverse-battery Protection
Zero Off-mode Current
Logic-controlled Enable
·
·
·
·
·
·
·
·
·
·
Applications
·
·
·
·
·
·
·
Cellular Phones
Cordless Phones
Digital Still Cameras
Wireless Communicators
PDAs / Palmtops
PC Mother Board
Consumer Electronics
BYP
C
BYP
470pF
EN
GND
V
OUT
C
OUT
2.2
μ
F
tantalum
+
V
IN
AP2201-2.8
V
IN
V
IN
=3.8V
V
OUT
=2.8V
V
OUT
C
IN
1.0
μ
F
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