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PDF AX1117A Data sheet ( Hoja de datos )
| Número de pieza | AX1117A | |
| Descripción | 1A Low Dropout Linear Regulator | |
| Fabricantes | AXElite | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AX1117A (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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AX1117A
1A Low Dropout Linear Regulator
GENERAL DESCRIPTION
AX1117A 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. AX1117A is also well suited for other applications such as VGA cards.
AX1117A 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
- 1.5V maximum dropout at full load current
- Fast transient response
- Output current limiting
- Built-in thermal shutdown
- Good noise rejection
- Low-ESR Ceramic Capacitor (MLCC) Required for Stability.
- 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
1/8
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.0 Dec.18, 2012
1 page  
AX1117A
APPLICATION CIRCUIT
(1) Using Multilayer Ceramic Capacitor (MLCC)
Fixed Output
ADJ Output
VIN=5V
U1
3 VIN
VOUT 2
VOUT=3.3V
VIN=5V
U1
3 VIN
VOUT 2
C1 GND 1
3.3~10uF AX1117A-33
C2
3.3~10uF
C1 ADJ 1
3.3~10uF AX1117A-ADJ
VOUT=3.3V
R1
240
C2
3.3~10uF
R2
390
VOUT
VREF
(1
R2
R1
);VREF
1.250V
(2) Using Aluminum Electrolytic Capacitor (AL)
Fixed Output
ADJ Output
VIN=5V
U1
3 VIN
VOUT 2
C1 GND 1
3.3~10uF AX1117A-33
VOUT=3.3V
VIN=5V
U1
3 VIN
VOUT 2
C2
0.1uF
C3
3.3~100uF
C1 ADJ 1
3.3~10uF AX1117A-ADJ
VOUT=3.3V
R1
240
C2
C3
0.1uF 3.3~100uF
R2
390
VOUT
VREF
(1
R2
R1 );VREF
1.250V
5/8
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.2.0 Dec.18, 2012
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AX1117A.PDF ] | |
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