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UNISONIC TECHNOLOGIES CO., LTD
L1186
Preliminary
CMOS IC
600mA CMOS LDO
„ 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.
„ 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
Lead Free
Halogen Free
L1186L-xx-AF5-R
L1186L-xx-S08-A-R
L1186G-xx-AF5-R
L1186G-xx-S08-A-R
L1186L-xx-S08-B-R
L1186G-xx-S08-B-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-25
SOP-8
SOP-8
4
5
123
SOT-25
1
SOP-8
Packing
Tape Reel
Tape Reel
Tape Reel
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L1186
„ MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-25
SOP-8
15 :1.5V
28 :2.8V
AD:ADJ
Preliminary
MARKING
321
LSXX
L: Lead Free
G: Halogen Free
Voltage Code
45
CMOS IC
„ PIN CONFIGURATION
VIN 1
GND 2
EN 3
5 VOUT
4 BYP/ADJ
VIN 1
GND 2
GND 3
EN 4
8 VOUT
7 GND
6 GND
5 ADJ
SOT-25
„ 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
BYP/ADJ
VOUT
NC
SOP-8(A)
SOP-8(B)
DESCRIPTION
Input for voltage input.
Ground.
Enable pin.
Noise Reduction Bypass Capacitor/ Adjusted Voltage
Output voltage pin
No connection
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L1186
„ BLOCK DIAGRAM
IN
Preliminary
Thermal
Shutdown
Overcurrent
Shutdown
EN
GND
Vref=1.215V
-
AMP
+
CMOS IC
OUT
ADJ
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L1186
Preliminary
CMOS IC
„ ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
Output Voltage
Output Current
VIN
VOUT
IOUT
8
GND-0.3 ~ VIN+0.3
PD
VIN - VOUT
V
V
A
Power Dissipation
SOT-25
SOP-8
PD
400
600
mW
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.
„ THERMAL DATA
PARAMETER
SYMBOL
Junction to Ambient
SOT-25
SOP-8
θJA
Junction to Case (Note)
SOT-25
SOP-8
θJC
Note: θJC on center of molding compound if IC has on tab
RATINGS
260
200
81
65
UNIT
°C/W
°C/W
„ ELECTRICAL CHARACTERISTICS (Ta = 25°C, unless otherwise noted.)
Fixed Voltage
PARAMETER
Input Voltage
Output Voltage Accuracy
Line Regulation
Load Regulation
Output Current
Current Limit
Short Circuit Current
Quiescent Current
Ground Pin Current
Dropout Voltage
Over Temperature Shutdown
Over Temperature Hysteresis
Temperature Coefficient of
Output Voltage
Power Supply Rejection
Output Voltage Noise
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EN Input Bias Current
Shutdown Supply Current
PG Leakage Current
SYMBOL
VIN
VOUT
ΔVOUT
VOUT
ΔVOUT
VOUT
IOUT
ILIMIT
ISC
IQ
IGND
VD
OTS
OTH
TEST CONDITIONS
IOUT=1mA
IOUT=1mA
1.4V<VOUT2.0V
VIN=VOUT+1~VOUT+2 2.0V<VOUT<4.0V
MIN TYP
Note1
-1.5
-0.15
-0.1 0.02
MAX
7
1.5
0.15
0.1
IOUT=1mA~600 mA
0.2 1
VOUT>1.2V
VOUT>1.2V
VOUT<0.8V
IOUT=0mA
IOUT=1mA~600mA
IOUT =600mA
VOUT=VO(NOM)-2.0%
1.4V<VO(NOM)2.0V
2.0V<VO(NOM)2.8V
600
600
800
300 600
30 50
35
1400
800
150
30
UNIT
V
%
%
%
%
mA
mA
mA
μA
μA
mV
mV
°C
°C
TCVO
30 ppm/°C
PSRR
eN
VEH
VEL
IEH
IEL
ISD
ILC
IOUT =100mA
f=1kHz
COUT=2.2μF ceramic f=10kHz
CBYP=0.01μF
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
75 dB
55 dB
30 dB
30 μVrms
2.0 VIN
0 0.4
0.1
0.5
0.5 1
1
V
V
μA
μA
μA
μA
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L1186
Preliminary
CMOS IC
„ ELECTRICAL CHARACTERISTICS (Cont.)
Adjusted Voltage
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Input Voltage
Reference Voltage
Output Voltage Accuracy
Line Regulation
VIN
VREF
VOUT
ΔVOUT
VOUT
IOUT=1mA
VIN=VOUT+VD~7V, IOUT=1mA
Note1
7
1.196 1.215 1.234
-1.5 1.5
-0.15
0.15
V
V
%
%
Load Regulation
ΔVOUT
VOUT
VIN=VOUT+VD , IOUT=1mA~600 mA
0.2 1
%
Output Current
Current Limit
Short Circuit Current
Adjusted Current
Ground Pin Current
Dropout Voltage
Over Temperature Shutdown
IOUT
ILIMIT
ISC
IADJ
IGND
VD
OTS
VOUT>1.3V
VOUT>1.3V
VOUT<0.8V
IOUT=0mA
IOUT=1mA~600mA
VOUT=VO(NOM)-2.0%, IOUT =600mA
600
600 800
300 600
30 50
35
600
150
mA
mA
mA
μA
μA
mV
°C
Over Temperature Hysteresis
OTH
30 °C
Temperature Coefficient of
Output Voltage
TCVO
30 ppm/°C
Power Supply Rejection
PSRR
IOUT =100mA
f=1kHz
COUT=2.2μF ceramic f=10kHz
CBYP=0.01μF
f=100kHz
40 dB
20 dB
15 dB
Output Voltage Noise
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
PG Leakage Current
Notes:1. VIN(MIN)=VOUT+VD
eN
f=10Hz~100kHz, IOUT =10mA
COUT=2.2μF , CBYP=0.1μF
VEH VIN=2.7V~7V
VEL VIN=2.7V~7V
IEH VEN=VIN, VIN=2.7V~7V
IEL VEN=0V, VIN=2.7V~7V
ISD VIN=5V, VOUT =0V, VEN<VEL
ILC VPG=7V
30 μVrms
2.0 VIN
0 0.4
0.1
0.5
0.5 1
1
V
V
μA
μA
μA
μA
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.
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