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AX1117 데이터시트 PDF




AXElite에서 제조한 전자 부품 AX1117은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AX1117 자료 제공

부품번호 AX1117 기능
기능 1A Low Dropout Linear Regulator
제조업체 AXElite
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AX1117 데이터시트, 핀배열, 회로
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




AX1117 pdf, 반도체, 판매, 대치품
AX1117
ELECTRICAL CHARACTERISTICS (CONTINUED)
Temperature Stability IOUT =10mA
JA Thermal
Resistance
SOT-223
Junction-to-Ambient(No TO-252
heat sink ;No air flow)
JA Thermal Resistance
Junction-to-Ambient
(Note 4)
SOT-223
TO-252
JC Thermal
Resistance
Junction-to-Case
SOT-223
TO-252
0.5 %
117
92
°C/W
75
55
°C/W
15
10
°C/W
Note1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load
regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load
regulation is measured at the output lead = 1/18” from the package.
Note2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation
is determined by the difference between input and output differential and the output current. Guaranteed
maximum power dissipation will not be available over the full input/output range.
Note3: Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V
input/output differential the device is guaranteed to regulate if the output current is greater than 10mA.
Note4: Output is connected to the multi-layer PCB cupper area 10mm*10mm separately. If you need large PD or
lower Tc and Tj, please connect to the large cupper area >>10mm*10mm.
APPLICATION CIRCUIT
Fixed Output
VIN+5V
AX1117-3.3V
3 VIN VOUT 2
C1
10uF
ADJ/GND 1
Vout=3.3V
C2
10uF
ADJ Output
VIN+5V
3 VIN VOUT 2
C1
10uF
ADJ/GND 1
AX1117-ADJ
Vout=3.3V
R1
240
C2
10uF
R2
390
VOUT
VREF
=
=
VREF x
1.250V
(1+
R2
R1
)
4/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.9 Jun.17, 2010

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AX1117 전자부품, 판매, 대치품
(2) TO252-3L
E
b2
D1
be
e1
AX1117
5.6
2.25
1.2
Land Pattern Recommendation (Unit: mm)
H
L
Symbol
Dimensions in Millimeters
Min. Nom. Max.
A 2.18 2.29 2.39
A1 - - 0.13
b 0.51 0.71 0.89
b2 4.95 5.21 5.46
C 0.46 0.53 0.61
C1 0.46 0.53 0.58
D 5.33 5.46 6.22
D1 4.57 -
-
E 6.35 6.55 6.73
e 2.29 BSC
e1 4.58 BSC
H 9.4 9.7 10.4
L 1.4 1.6 1.78
L1 - - 1.02
L2 1.52 1.78 2.03
Mold flash shall not exceed 0.005inch per side
JEDEC outline: TO-252
SEATING PLANE
Dimensions in Inches
Min. Nom. Max.
0.086
0.09 0.094
- - 0.005
0.02 0.028 0.035
0.195
0.205 0.215
0.018
0.021 0.024
0.018
0.021 0.023
0.21 0.215 0.245
0.18 -
-
0.25 0.258 0.265
0.090 BSC.
0.180 BSC.
0.37 0.382 0.41
0.055
0.063
0.07
- - 0.04
0.06 0.07 0.08
7/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.9 Jun.17, 2010

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