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AX1007 반도체 회로 부품 판매점

1A Low Dropout Linear Regulator



AXElite 로고
AXElite
AX1007 데이터시트, 핀배열, 회로
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
VIN 3
2 VOUT
Thermal
Shutdown
+
+
-
CURRENT
LIMIT
1.25V
+
-
+
1
GND
(FIXED)
1 Adj
1/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.8 Dec.18, 2012


AX1007 데이터시트, 핀배열, 회로
AX1007
PIN ASSIGNMENT
The packages of AX1007 are SOT223-3L, TO252-3L and SOT89-3L; the pin assignment is
given by:
SOT223
( Top View )
SOT89
3 VIN
2 VOUT
Tab is VOUT
3 VIN
2 VOUT
1 Adj (GND)
Tab is Vout
1 ADJ
(GND)
Name
Description
TO252
( Top View )
Adj
(GND)
A resistor divider from this pin to the
VOUT pin and ground sets the output
voltage. (Ground only for
Fixed-Mode)
3 VIN
VOUT The output of the regulator. (Note1,2)
2 VOUT
The input pin of regulator. Typically a
large storage capacitor is connected
1 Adj (GND)
from this pin to ground to insure that
the input voltage does not sag below
Tab is Vout
VIN 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)
Note1: To prevent oscillation, a 0.2uF minimum X7R or X5R dielectric is strongly recommended if ceramics are
used as output capacitors.
Note2: A minimum of 3.3uF EL capacitor to 100uF (10mΩ ≤ ESR 1Ω) must be connected from
this pin to ground to insure stability.
2/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.8 Dec.18, 2012




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AX1007 regulator

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