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AXElite

AX1117 Datasheet Preview

AX1117 Datasheet

1A Low Dropout Linear Regulator

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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




AXElite

AX1117 Datasheet Preview

AX1117 Datasheet

1A Low Dropout Linear Regulator

No Preview Available !

AX1117
PIN ASSIGNMENT
The packages of AX1117 are SOT223 and TO252; the pin assignment is given by:
SOT223
( Top View )
3 VIN
2 VOUT
1 Adj (GND)
Tab is VOUT
TO252
( Top View )
3
VIN
2 VOUT
1
Tab is VOUT
Adj (GND)
Name
Description
Adj
(GND)
A resistor divider from this pin to the VOUT
pin and ground sets the output voltage.
(Ground only for Fixed-Mode)
The output of the regulator. A minimum of
VOUT
10uF capacitor (0.15Ω ≤ ESR 20Ω) must
be connected from this pin to ground to
insure stability.
The input pin of regulator. Typically a large
storage capacitor (0.15Ω ≤ ESR 20Ω) is
connected from this pin to ground to insure
VIN
that the input voltage does not sag below
the minimum dropout voltage during the
load transient response. This pin must
always be 1.4V higher than VOUT in order for
the device to regulate properly.
ORDER/MARKING INFORMATION
Order Information
AX 1117 X XX X
ADJ
Low Dropout
Regulator
Top Marking (SOT223-3L)
Package
Vout
Packing
E : SOT223-3L Blank : ADJ
D : TO252-3L 15 : 1.5V
18 : 1.8V
25 : 2.5V
33 : 3.3V
50 : 5.0V
Blank : Tube
A : Taping
Top Marking (TO252-3L)
ADJ
AXLogo
1117
YWWX
FIX
Part number
ID code: internal
WW: 01~52
Year: A= 2010
1= 2011
Logo
FIX
AX 1 1 1 7
YYWWX
Part number
ID code: internal
WW: 01~52
Year: 10=2010
11=2011
AXOutput Voltage
AX1117-15: 1.5V
AX1117-18: 1.8V
11 17
- VV
YWWX
AX1117-25: 2.5V
AX1117-33: 3.3V
AX1117-50: 5.0V
ID code: internal
WW: 01~52
Year: A= 2010
1= 2011
AXOutput Voltage
AX1117-15: 1.5V
1117
- VV
AX1117-18: 1.8V
Y YWWX
AX1117-25: 2.5V
AX1117-33: 3.3V
AX1117-50: 5.0V
ID code: internal
WW: 01~52
Year: 10=2010
11=2011
2/7
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.9 Jun.17, 2010


Part Number AX1117
Description 1A Low Dropout Linear Regulator
Maker AXElite
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