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PDF ( 数据手册 , 数据表 ) AX1202

零件编号 AX1202
描述 2A Ultra Low Dropout Linear Regulator
制造商 Axelite
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AX1202 数据手册, 描述, 功能
AX1202
2A Ultra Low Dropout Linear Regulator
™ GENERAL DESCRIPTION
The AX1202 is a low-dropout voltage regulator suitable for various electronic
equipments. It provides constant voltage power source. The dropout voltage of AX1202
is below 0.27V in full rated current (2A). This regulator has various functions such as a
peak current protection, a thermal shut down, a short circuit protect.
The AX1202 is available in SOP-8L, TO252-5L, TO220- 5L and TO 263-5L power
packages which feat ures small size to reduce t he junct ion-to-case res istance, being
applicable in 0.5~3W applications.
™ FEATURES
- Ultra Low Dropout - 0.27V(t ypical) at 2A Output Current
- Adjustable mode: 1.22V Reference Voltage
- Fixed mode:5V, 9V, 12V output voltage
- Operating voltage: up to 23V for TO220 and TO263 packages.
u p to 16V for TO252 and SOP-8L packages.
- Current-Limit and Thermal Shutdown Protection
- Short circuit protection, Enable function.
- Built-in internal SW P-channel MOS
- SOP-8L, TO252-5L, TO220-5L, TO220- 5LR and TO263-5L Pb-Free Packages.
™ Block Diagram
Vcc
EN
10uA
Current
Limit
Enable
7V
Thermal
Shutdown
Error
- + Amp
Vref=1.22V
OUT
FB
GND
1/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Nov .24, 2008
http://www.Datasheet4U.com







AX1202 pdf, 数据表
AX1202
™ Typical Characteristics (Continued)
Temperature vs. FB Voltage
(Vcc=12.5V Vout=12V)
1.24
1.235
1.23
1.225
1.22
1.215
1.21
1.205
1.2
-40 -20 0 255 08 5 105 125
Temper ature ( )
Temperature vs. GND Current
(Vcc=12.5V Vout=12V)
2.4
2
1.6
1.2
0.8
0.4
-40 -20 0 25 50 85 105 125
Temperature ()
Load Transient
(Vcc=12.5V Vout=12V Load=0.1~2A)
Temperature vs. Vout
(Vcc=12.5V V out=12V)
12.4
12.3
12.2
12.1
12
11.9
11.8
11.7
11.6
-40 -20 0 25 50 85 105 125
Temperature ()
Temperature vs. Shutdown Current
(Vcc=12.5V Vout=12V)
250
220
190
160
130
100
-40 -20 0 25 50 85 105 125
Temper ature ( )
Power-ON
(Vcc=12V Vout=9V Load=1.5A)
8/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Nov .24, 2008














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