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PDF AOZ1117 Data sheet ( Hoja de datos )
| Número de pieza | AOZ1117 | |
| Descripción | 1A Low Dropout Linear Regulator | |
| Fabricantes | Alpha & Omega Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AOZ1117 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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AOZ1117
1A Low Dropout Linear Regulator
General Description
The AOZ1117 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. The AOZ1117 is also well suited for other appli-
cations such as VGA cards. The AOZ1117 is guaranteed
to have lower than 1.4V dropout at full load current mak-
ing it ideal to provide well-regulated outputs of 1.25V to
5.0V with 2.75V to 14V 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,
or 5.0V
● TO252 package
Applications
● PC peripheral
● Communication
Typical Circuits
Fixed OFiuxetpduOtuEtpxuatmEpxlaemple
VIN + 5VVIN + 5V
VOUTVO=U3T.3=V3.3V
3
3 CV1 IN
VINVOUT V2OUT
2
C1
10μF
10μF
ADJ/GND 1
ADJA/GONZD11117
AOZ1117
C2
C2 10μF
10μF
AAddjjuussttaabbllee OOuuttppuut tEExaxmamplpele
VINVIN+ +5V5V
VOVUOTU=T3=.33V.3V
3
3
VVININ
VVOOUUTT
2
2
C1
ADJ/GND
ADJ/GND
1
1
C110μF AOZ1117
10μF AOZ1117
R1
24R01Ω
240Ω
R2
39R02Ω
390Ω
C2
10μCF2
10μF
www.DataSheet4U.com
!
Figure 1.
VOUT = VREF x
1+
R2
R1
VVORUETF == 1V.2R5E0FVx
1+
R2
R1
VREF = 1.250V
Rev. 1.1 September 2008
www.aosmd.com
Page 1 of 8
1 page  
AOZ1117
Typical Performance Characteristics
Dropout Voltage vs Output Current
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
0
0 250 500 750 1000
Output Current (mA)
Percent Change in Output Voltage vs Temperature
2
1.5
1
0. 5
0
-0.5
-1
-1.5
-2
-50 -25
0 25 50 75 100 125 150
Temperature (oC)
Load Regulation vs Temperature
0.20
0
-0.20
I load = 800mA
-0.40
-0.80
-1
-25
1
0.8
0 25 50 75 100 125
Temperature (oC)
Line Regulation
0.6
0.4
0.2
0
2 4 6 8 10 12
Input Voltage (V)
Line Transient Response
7.5
Cin=1μF
Cout=10μF Tantalum
6.5
5.5
40
20
0
www.DataSheet-240U.com
-40
0 20 40 60 80 100 120 140 160 180 200
Time (μs)
Load Transient Response
30
C in = 1μF
20 C out = 10 μF Tantalum
Preload = 100mA
10
0
-10
-20
2
1
0
-1 0 10 20 30 40 50 60 70 80 90 100
Time (μs )
Rev. 1.1 September 2008
www.aosmd.com
Page 5 of 8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AOZ1117.PDF ] | |
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