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Unisonic Technologies
Unisonic Technologies


L1183A

300mA CMOS LDO



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L1183A pdf
UNISONIC TECHNOLOGIES CO., LTD
L1183A
300mA CMOS LDO
Preliminary
CMOS IC
DESCRIPTION
The UTC L1183A is a COMS positive linear regulator. One of it’s
feature is the very low quiescent current typical as low as 30μA and
its dropout voltage is extremely low with 300mA output current.
The internal circuit includes current fold-back to prevent device
failure when the circuit is operated in the bad conditions.
In application, the UTC L1183A needs a low noise, regulated
supply. For stable operation, the output capacitance value should be
2.2μF or more.
The UTC L1183A is an ideal for battery applications, such as
instrumentations, portable electronics, wireless devices, cordless
phones, PC peripherals, and battery powered widgets.
FEATURES
* Accurate To Within 1.5%
* Quiescent Current: 30μA
* With Current Limiting
* Internal Short Circuit Current Fold-Back
* Has Power-Saving Shutdown Mode
* Very Low Temperature Coefficient
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L1183AL-xx-AF5-R
L1183AG-xx-AF5-R
L1183AL-xx-AG6-R
L1183AG-xx-AG6-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-25
SOT-26
Packing
Tape Reel
Tape Reel
L1183AL-xx-AF5-R
(1) Packing Type
(2) Package Type
(3) Output Voltage Code
(1) R: Tape Reel
(2) AF5: SOT-25, AG6: SOT-26
(3) xx: Refer to Marking Information
(4) Lead Free
(4) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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L1183A pdf
L1183A
MARKING INFORMATION
PACKAGE VOLTAGE CODE
SOT-25
SOT-26
12:1.2V
15 :1.5V
18:1.8V
25:2.5V
28 :2.8V
30: 3.0V
31 :3.1V
33 :3.3V
50:5.0V
Preliminary
MARKING
CMOS IC
Voltage Code
654
SXXA
123
G: Halogen Free
L: Lead Free
PIN CONFIGURATION
PIN DESCRIPTION
PACKAGE
SOT-25
PIN NO.
1
2
3
4
5
SOT-26
1
2
3
4
5
6
PIN NAME
VIN
GND
EN
NC
VOUT
SENSE
GND
BYP
EN
VDD
VOUT
DESCRIPTION
Input for voltage input. A 1µF or greater capacitor should be placed in
this pin.
Ground.
Enable pin. Pulling his pin low, can shut down the PMOS pass transistor,
and the current consuming can be set less than 1µA.
Output voltage pin. The capacitor which connected between this pin and
GND should be decoupled with a 2.2µF or a greater value low ESR
ceramic capacitor.
Remote Sense.
Ground.
Bypass capacitor for noise reduction.
Enable Input.
Supply Input.
Output Voltage.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-315.k



Part Number L1183A
Description 300mA CMOS LDO
Maker Unisonic Technologies - Unisonic Technologies
Total Page 6 Pages
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