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AXElite

AX1116A Datasheet Preview

AX1116A Datasheet

150mA Ultra Low Dropout Linear Regulator

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AX1116A
150mA Ultra Low Dropout Linear Regulator
GENERAL DESCRIPTION
The AX1116A device is an efficient linear voltage regulator with better than 2% initial
voltage accuracy, very low dropout voltage and very low ground current designed
especially for hand held, battery powered applications. Other features of the device are:
TTL compatible enable/shutdown control input, current limiting and thermal shutdown.
The AX1116A is available adjustable output voltage versions in a small SOT-23 5-Pin
package.
FEATURES
- Wide Operating range: 4.5V ~ 25V
- Adjustable output.
- 2% Voltage Reference Accuracy
- 5uA Shutdown Current
- Stable with 2.2uF Ceramic Capacitor
- Current-Limit and Thermal Shutdown Protection
- Logic input enable pin.
- Available in STO-23-5L, Pb-Free Package.
1/8
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.5 Apr.06, 2012




AXElite

AX1116A Datasheet Preview

AX1116A Datasheet

150mA Ultra Low Dropout Linear Regulator

No Preview Available !

AX1116A
BLOCK DIAGRAM
VIN
Current
Limit
EN Enable
Thermal
Shutdown
Error
- + Amp
Vref=1.25V
VOUT
ADJ
GND
PIN ASSIGNMENT
The package of AX1116A is SOT-23-5L; the pin assignment is given by:
Name
Description
VIN
GND
EN
(Top View)
1 5 VOUT
2
3 4 ADJ
The input pin of the 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 drop out
VIN voltage during the load transient
response. This pin must always be
higher than VOUT by at least the
amount of the dropout voltage and
some margin in order for the device to
regulate properly.
A resistor divider from this pin to the
ADJ VOUT pin and ground sets the output
voltage.
Enable pin. A low signal or left open
EN
on this pin shuts down the output.
This pin must be tied High or to VIN for
normal operation.
The output of the regulator. A
VOUT
minimum
capacitor
of 2.2uF
must be
with max ESR of 1Ω
connected from this
pin to ground to insure stability.
Ground pin. This pin must be
connected to the lowest potential in
GND the system and all other pins must be
at higher potential with respect to this
pin.
2/8
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.5 Apr.06, 2012


Part Number AX1116A
Description 150mA Ultra Low Dropout Linear Regulator
Maker AXElite
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AX1116A Datasheet PDF






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