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PDF AX1202 Data sheet ( Hoja de datos )
| Número de pieza | AX1202 | |
| Descripción | 2A Ultra Low Dropout Linear Regulator | |
| Fabricantes | Axelite | |
| Logotipo |  |
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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
1 page  
Application Circuit
1. FIXED (SOP-8L)
ON/OFF
VIN+13V
C3
100pF
U1
1 GND
2 FB
3 EN
4 Vcc
AX1202-12
C1
100uF
OUT 8
OUT 7
OUT 6
OUT 5
AX1202
VOUT = 12V/2.0A
C2
220uF
2. ADJ (SOP-8L)
ON/OFF
VIN+10V
U1
1 GND
OUT 8
2 FB
OUT 7
3 EN
OUT 6
4 Vcc
OUT 5
AX1202-ADJ
C1
100uF
R1
2.4K
R2
0.39K
VOUT = 9V/2.0A
C3
100pF
C2
220uF
VOUT=VFB*(1+R1/R2)
VFB = 1.22V
R2 suggest 1K~5.6K Ω
C2 choose Low ESR capacitor
C3=47pF~100pF for stability issue
5/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Nov .24, 2008
5 Page 
AX1202
(3) TO220-5LR
Q
E
A
F
H1
D
d1 H2
H3
d2
be
J2
J1
A
E
J1
J2
Symbol
A 4.4
b 0.7
D 8.4
d1 1.0
d2 6.3
E 9.91
e 1.6
F 1.2
H1 6.4
H2 20.8
H3 23.9
J1 3.7
J2 8.4
Q 2.5
Dimensions In Millimeters
Min.
Nom.
Max.
4.6 4.7
0.8 0.9
8.7 8.9
10.16
1.7
1.25
21.6
24.7
4.5
2.8
10.41
1.8
1.3
22.4
25.5
5.3
3.0
Dimensions In Inches
Min.
Nom.
Max.
0.175 0.180 0.185
0.027 0.032 0.037
0.330 0.340 0.350
0.039
0.248
0.390 0.400 0.410
0.062 0.067 0.072
0.048 0.050 0.052
0.250
0.820 0.850 0.880
0.942 0.972 1.002
0.147 0.177 0.207
0.331
0.100 0.110 0.120
11/13
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.6 Nov .24, 2008
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AX1202.PDF ] | |
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