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AX1007 1A Low Dropout Linear Regulator
GENERAL DESCRIPTION AX1007 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. AX1007 is also well suited for other applications such as VGA cards. AX1007 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 VOUT+1.4V to 12V input supply VOLTAGE. FEATURES 1.4V maximum dropout at full load current Fast transient response Output current limiting Built-in thermal shutdown Good noise rejection MLCC Capacitors are available. 3-Terminal Adjustable or Fixed 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V Packages: SOT223, TO252 and SOT89.
BLOCK DIAGRAM
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2 VOUT
VIN 3
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+ + -
CURRENT LIMIT
+
1.25V
+
1
GND (FIXED)
Thermal Shutdown
-
1 Adj
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Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.8 Dec.18, 2012
AX1007
PIN ASSIGNMENT The packages of AX1007 are SOT223-3L, TO252-3L and SOT89-3L; the pin assignment is given by:
SOT223 ( Top View ) 3 2 1 Tab is Vout VIN VOUT Adj (GND)
SOT89 Tab is VOUT 3 2 1 VIN VOUT ADJ (GND)
Name Adj (GND)
VIN VOUT Adj (GND)
Description 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. (Note1,2) The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 1.5V higher than VOUT in order for the device to regulate properly. (Note1)
TO252 ( Top View ) 3 2 1 Tab is Vout
VOUT
VIN
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Note2: A minimum of 3.3uF EL capacitor to 100uF (10mΩ ≤ ESR ≤ 1Ω) must be connected from
this pin to ground to insure stability.
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Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.8 Dec.18, 2012
AX1007
ORDER/MARKING INFORMATION Order Information
AX1007 X XX X Package Vout Packing Blank: Tube SOT223/TO252 : Tube SOT89: Bag A : Taping
Top Marking (SOT89-3L)
10 0 7 LY W X Output Type AX1007-ADJ: A AX1007-12: B AX1007-15: C AX1007-18: D AX1007-25: E AX1007-33: F AX1007-50: G Part number ID code: internal WW: 01~26(A~Z) 27~52(a~z) Year: A=2010 1=2011 2=2012 : : 9=2019
E : SOT223-3L Blank : ADJ D : TO252-3L 12: 1.2V F : SOT89-3L 15 : 1.5V 18 : 1.8V 25 : 2.5V 33 : 3.3V 50 : 5.0V
Top Marking (SOT223-3L) ADJ
Logo 0 0 7 AX 1 YWWX Part number ID code: internal WW: 01~52 Year: A=2010 1=2011 2=2012 : : 9=2019
Top Marking (TO252-3L) ADJ
Logo
AX 1 0 0 7
Y Y W W.