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PDF AX1117 Data sheet ( Hoja de datos )
| Número de pieza | AX1117 | |
| Descripción | 1A Low Dropout Linear Regulator | |
| Fabricantes | AXElite | |
| Logotipo |  |
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AX1117
1A Low Dropout Linear Regulator
GENERAL DESCRIPTION
AX1117 is a low dropout positive adjustable or fixed-mode regulator with minimum of
1A output current capability. The product is specifically designed to provide well-regulated
supply for low voltage IC applications such as high-speed bus termination and low current
3.3V logic supply. AX1117 is also well suited for other applications such as VGA cards.
AX1117 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to
provide well-regulated outputs of 1.25 to 5.0 with 6.4V to 12V input supply.
FEATURES
- 1.4V maximum dropout at full load current
- Fast transient response
- Output current limiting
- Built-in thermal shutdown
- Good noise rejection
- 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V
- Packages: SOT223, TO252
BLOCK DIAGRAM
Vin 3
2 Vout
Thermal
Shutdown
+
+-
CURRENT
LIMIT
1.25V
+
+
1
GND
(FIXED)
- 1 Adj
1/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.9 Jun.17, 2010
1 page  
AX1117
TYPICAL CHARACTERISTICS
2. 0
1. 8
1. 6
1. 4
1. 2 Tj = 25 oC
1. 0
0. 8
Tj = 125 oC
0. 6
0. 4
0. 2
00 250 500 750
Output Current (mA)
Dropout Voltage vs Output Current
1000
0.20
0
-0.20
I load=800mA
-0.40
-0.80
- 1-25
0
25 50
75
Temperature (oC)
100
Load Regulation vs Temperature
125
21
1.5
0.8
1
0. 5 0.6
0
-0.5 0.4
-1
0.2
-1.5
-2
-50 -25 0 25 50 75 100 125 150
Temperature (oC)
Percent Change in Output Voltage vs Temperature
02
46
8
Input Voltage (V)
Line Regulation
10
12
7.5
Cin=1uF
Cout=10uF Tantalum
6.5
5.5
40
20
0
-20
-40
0 20 40 60 80 100 120 140 160 180 200
TIME (us)
Line Transient Response
30
C in = 1uF
20 C out = 10 uF Tantalum
Preload = 100mA
10
0
-10
-20
2
1
0
-1 0 10 20 30 40 50 60 70 80 90 100
TIME (us)
Load Transient Response
5/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.9 Jun.17, 2010
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AX1117.PDF ] | |
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