Datasheet

UNISONIC TECHNOLOGIES CO., LTD
L1186
CMOS IC
600mA CMOS LDO
4
5

DESCRIPTION
The UTC L1186 is a COMS positive linear regulator. One of its
features is the very low quiescent current typical as low as 30μA and
its dropout voltage is extremely low with 600mA output current.
The internal circuit includes thermal shutdown and current
fold-back to prevent device failure when the circuit is operated in the
bad conditions.
In application, the UTC L1186 needs a low noise, regulated
supply. For stable operation, the output capacitance value should be
2.2μF or more.
The UTC L1186 is an ideal for battery applications, such as
instrumentations, portable electronics, wireless devices, cordless
phones, PC peripherals, and battery powered widgets.

1
2
3
SOT-25
1
SOP-8
FEATURES
* Accurate to Within 1.5%
* Quiescent Current: 30μA
* Internal Over-Temperature Shutdown
* With Current Limiting
* Internal Short Circuit Current Fold-Back
* With Noise Reduction Bypass Capacitor
* Has Power-Saving Shutdown Mode
* Very Low Temperature Coefficient

ORDERING INFORMATION
Ordering Number
L1186G-xx-AF5-R
L1186G-xx-S08-A-R
L1186G-xx-S08-B-R
Note: xx: Output Voltage, refer to Marking Information.
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
Package
SOT-25
SOP-8
SOP-8
Packing
Tape Reel
Tape Reel
Tape Reel
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L1186
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CMOS IC
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
SOT-25
AD: ADJ
SOP-8

PIN CONFIGURATION
VIN 1
5 VOUT
GND 2
4 ADJ
EN 3
VIN 1
8 VOUT
GND 2
7 GND
GND 3
6 GND
EN 4
5 ADJ
SOT-25

SOP-8(A)
SOP-8(B)
PIN DESCRIPTION
SOT-25
1
2
3
4
5
-
PIN NO
SOP-8(A)
1
2, 3, 6, 7
4
5
8
-
SOP-8(B)
8
3
5
2
1
4, 6, 7
PIN NAME
VIN
GND
EN
ADJ
VOUT
NC
UNISONIC TECHNOLOGIES CO., LTD
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DESCRIPTION
Input for voltage input.
Ground.
Enable pin.
Adjusted Voltage
Output voltage pin
No connection
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L1186
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CMOS IC
BLOCK DIAGRAM
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L1186
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CMOS IC
ABSOLUTE MAXIMUM RATING (TA = 25°C, unless otherwise specified.)
PARAMETER
RATINGS
UNIT
8
V
GND-0.3 ~ VIN+0.3
V
PD
A
Output Current
IOUT
VIN - VOUT
SOT-25
400
Power Dissipation
PD
mW
SOP-8
600
Junction Temperature
TJ
150
°C
Operating Temperature
TOPR
-40~+85
°C
Storage Temperature
TSTG
-65~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
Input Voltage
Output Voltage

SYMBOL
VIN
VOUT
THERMAL RESISTANCES CHARACTERISTICS
PARAMETER
SYMBOL
SOT-25
Junction to Ambient
θJA
SOP-8
SOT-25
Junction to Case (Note)
θJC
SOP-8
Note: θJC on center of molding compound if IC has on tab.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
RATINGS
260
200
81
65
UNIT
°C/W
°C/W
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L1186
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CMOS IC
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise specified.)
Adjusted Voltage
PARAMETER
Input Voltage
Reference Voltage
Output Voltage Accuracy
Line Regulation
Load Regulation
Output Current
Current Limit
Short Circuit Current
Adjusted Current
Ground Pin Current
SYMBOL
VIN
VREF
VOUT
∆VOUT
VOUT
∆VOUT
VOUT
IOUT
ILIMIT
ISC
IADJ
IGND
Dropout Voltage
Over Temperature Shutdown
Over Temperature Hysteresis
Temperature Coefficient of
Output Voltage
Power Supply Rejection
Output Voltage Noise
EN Input Threshold
EN Input Bias Current
VD
TEST CONDITIONS
IOUT=1mA
IOUT=1mA
VIN=VOUT+1~VOUT+2
1.4V<VOUT≤2.0V
2.0V<VOUT<4.0V
MIN TYP MAX UNIT
Note1
7
V
1.196 1.215 1.234
V
-1.5
1.5
%
-0.15
0.15
%
-0.1 0.02
0.1
%
IOUT=1mA~600 mA
VOUT>1.3V
VOUT>1.3V
VOUT<0.8V
IOUT=0mA
IOUT=1mA~600mA
IOUT =600mA
VOUT=VO(NOM)-2.0%
0.2
600
600
40
20
15
30
μVrms
1.4V<VO(NOM)≤2.0V
2.0V<VO(NOM)≤2.8V
150
30
TCVO
30
eN
VEH
VEL
IEH
IEL
ISD
ILC
f=1kHz
f=10kHz
f=100kHz
f=10Hz~100kHz, IOUT =10mA
COUT=2.2μF , CBYP=0.1μF
VIN=2.7V~7V
VIN=2.7V~7V
VEN=VIN, VIN=2.7V~7V
VEN=0V, VIN=2.7V~7V
VIN=5V, VOUT =0V, VEN<VEL
VPG=7V
IOUT =100mA
COUT=2.2μF ceramic
CBYP=0.01μF
2.0
0
%
mA
mA
600
mA
50
μA
μA
1400 mV
800
mV
°C
°C
ppm/°
C
dB
dB
dB
800
300
30
35
OTS
OTH
PSRR
1
VIN
0.4
0.1
0.5
1
1
V
V
μA
μA
μA
μA
Shutdown Supply Current
0.5
PG Leakage Current
Notes: 1. VIN(MIN)=VOUT+VD
2. To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage
must be applied before a current source load is applied.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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L1186
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CMOS IC
TYPICAL APPLICATION CIRCUIT
Adjusted Voltage
EN
EN
OUT
OUT
R1
IN
IN
+
C1
1µF
GND
ADJ
C2
100p
C3
2.2µF
R2
VOUT = 1.215 ( R1/R2 +1 )
C2 is unnecessary if R1 or R2 < 20 K
R1 and R2 use resistance value within 1% accuracy for correct for correct VOUT
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L1186
VIN
(2V/DIV)
TYPICAL CHARACTERISTICS
VOUT
IO
(500mA/DIV) (10mV/DIV)

CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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www.unisonic.com.tw
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