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Unisonic Technologies
Unisonic Technologies


L1183B

300mA CMOS LDO



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L1183B pdf
UNISONIC TECHNOLOGIES CO., LTD
L1183B
300mA CMOS LDO
CMOS IC
DESCRIPTION
The UTC L1183B is a positive, linear regulator. One of the feature
is the very low ground current typically as low as 30μA, and the
dropout voltage is extremely low. For stable operation, the output
capacitance value should be 2.2μF or more.
The internal circuit includes thermal shutdown and current
fold-back device to prevent device failure when the circuit is
operated in bad conditions.
The UTC L1183B is generally suitable for applications, such as
instrumentation, portable electronics, wireless devices, cordless
phones, PC peripherals, battery powered widgets.
FEATURES
* Very Low Dropout Voltage
* Guaranteed Output Current: 300mA
* Quiescent Current: 30μA (TYP.)
* Typical Accuracy Within 2%
* Over-Temperature Shutdown
* Current Limiting
* Short Circuit Current Fold-Back
* Power Good Detector (6 pin version only)
* Power-Saving Shutdown Mode
* Adjustable Output Voltages
* Low Temperature Coefficient
* RoHS-Compliant Product
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L1183BG-xx-AG6-R
L1183BG-xx-AG6-R
Note: xx: Output Voltage, refer to Marking Information.
54
6
23
1
SOT-26
Package
SOT-26
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 4
QW-R502-422.C



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L1183B pdf
L1183B
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-26
12 :1.2V
15 :1.5V
28 :2.8V
31 :3.1V
33 :3.3V
PIN CONFIGURATION
654
SXXBG
123
MARKING
G: Halogen Free
L: Lead Free
Voltage Code
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
PIN NAME
VIN
GND
EN
PG
ADJ
VOUT
DESCRIPTION
Input voltage pin
Ground connection pin
Enable pin
Power-Good output
Feedback output voltage for adjustable device
LDO voltage regulator output pin
BLOCK DIAGRAM
IN
Thermal
Shutdown
Overcurrent
Shutdown
EN
VREF×110%
PG +-
+-
VREF×90%
-
AMP
+
Vref=1.2V
OUT
ADJ
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 4
QW-R502-422.C



Part Number L1183B
Description 300mA CMOS LDO
Maker Unisonic Technologies - Unisonic Technologies
Total Page 4 Pages
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