UNISONIC TECHNOLOGIES CO., LTD
LR1102
LOW NOISE 150mA LDO
REGULATOR
DESCRIPTION
The UTC
LR1102
families are CMOS-based voltage regulator
ICs with extremely low supply current, high output voltage
accuracy, high Ripple Rejection and chip enable circuit.
These ICs performance are excellent and with SOT-25
package, thus these ICs are very suitable for hand-held
communication equipment.
CMOS IC
FEATURES
* Ultra-Low Supply Current : Typ. 35µA
* Standby Mode: Typ. 0.1µA
* Low Dropout Voltage: Typ. 0.2V (I
OUT
= 100mA)
* Excellent Line Regulation: Typ. 0.05%/V
* High Ripple Rejection: Typ. 70dB (f = 1kHz)
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LR1102xL-xx-AF5-R
LR1102xG-xx-AF5-R
Note:
Package
SOT-25
Pin Assignment
1
2 3
4
5
I
G C
N
O
Packing
Tape Reel
Pin Assignment: I:V
DD
O:V
OUT
G:GND C: CE/CE
N: No Connection
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QW-R502-038,H
LR1102
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
25:2.5V
27:2.7V
28:2.8V
2J:2.85V
30:3.0V
33:3.3V
35:3.5V
50:5.0V
For LR1102A-XX
3
SL
4
5
2
1
L: Lead Free Plating
G: Halogen Free
Voltage Code
CMOS IC
MARKING
For LR1102B-XX
3 2 1
SH
4
5
L: Lead Free Plating
G: Halogen Free
Voltage Code
SOT-25
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
PIN NAME
V
DD
GND
CE/CE
NC
V
OUT
DESCRIPTION
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Output Pin
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QW-R502-038,H
LR1102
BLOCK DIAGRAM
CMOS IC
LR1102B-XX
1
5
V
DD
V
OUT
-
+
V
REF
CE
3
Current Limit
2
GND
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QW-R502-038,H
LR1102
ABSOLUTE MAXIMUM RATINGS
CMOS IC
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
V
IN
9
V
Input Voltage
V
CE
-0.3 ~ V
IN
+0.3
V
Output Voltage
V
OUT
-0.3 ~ V
IN
+0.3
V
Output Current
I
OUT
200
mA
Power Dissipation
P
D
250
mW
Junction Temperature
T
J
+125
°С
Operating Temperature
T
OPR
-40 ~ +85
°С
Storage Temperature
T
STG
-55 ~ +125
°С
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.
ELECTRICAL CHARACTERISTICS
LR1102A-XX
(T
OPR
=25°С)
PARAMETER
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Supply Current (Standby)
Line Regulation
Ripple Rejection
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-up Resistance
CE Input Voltage ”H”
CE Input Voltage ”L”
Output Noise
LR1102B-XX
(T
OPR
=25°С)
PARAMETER
Output Voltage
Output Voltage
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Supply Current (Standby)
Line Regulation
Ripple Rejection
SYMBOL
V
OUT
V
OUT
V
OUT
I
OUT
ΔV
OUT
/ΔI
OUT
V
DIF
I
SS
I
ST-BY
ΔV
OUT
/ΔV
IN
RR
TEST CONDITIONS
MIN
TYP
V
IN
=Set V
OUT
+ 1V, 1mA≤I
OUT
≤30mA
V
OUT
x0.98
V
IN
=Set V
OUT
+ 1V, 0mA≤I
OUT
≤150mA
V
OUT
x0.97
V
IN
=9V, 0mA≤I
OUT
≤150mA
V
OUT
x0.97
Refer to the Electrical Characteristics by Output Voltage
V
IN
=Set V
OUT
+ 1V, 1mA≤I
OUT
≤80mA
12
Refer to the Electrical Characteristics by Output Voltage
V
IN
=Set V
OUT
+ 1V
10
V
IN
= Set V
OUT
+ 1V, V
CE
=GND
0.1
Set V
OUT
+ 0.5V≤V
IN
≤8V,
I
OUT
=30mA
0.05
f=1kHz, Ripple 0.5Vp-p
70
V
IN
=Set V
OUT
+ 1V
MAX
V
OUT
x1.02
V
OUT
x1.03
V
OUT
x1.03
SYMBOL
V
OUT
I
OUT
ΔV
OUT
/ΔI
OUT
V
DIF
I
SS
I
ST-BY
ΔV
OUT
/ΔV
IN
RR
V
IN
ΔV
OUT
/ΔT
I
LIMIT
R
PU
V
CEH
V
CEL
eN
TEST CONDITIONS
MIN
TYP
V
IN
=Set V
OUT
+ 1V, 1mA≤I
OUT
≤30mA
V
OUT
x0.98
V
IN
=Set V
OUT
+ 1V, 0mA≤I
OUT
≤150mA
V
OUT
x0.97
V
IN
=9V, 0mA≤I
OUT
≤150mA
V
OUT
x0.97
Refer to the Electrical Characteristics by Output Voltage
V
IN
=Set V
OUT
+ 1V, 1mA≤I
OUT
≤80mA
12
Refer to the Electrical Characteristics by Output Voltage
V
IN
=Set V
OUT
+ 1V
10
V
IN
=V
CE
=Set V
OUT
+ 1V
0.1
Set V
OUT
+ 0.5V≤V
IN
≤8V,
I
OUT
=30mA
0.05
f=1kHz, Ripple 0.5Vp-p
70
V
IN
=Set V
OUT
+ 1V
2
I
OUT
= 30mA, -20°С≤T
OPR
≤85°С
V
OUT
=0V
2.5
1.5
0.00
B
W
= 10Hz ~ 100kHz
±100
200
5.0
MAX
V
OUT
x1.02
V
OUT
x1.03
V
OUT
x1.03
UNIT
V
V
V
mV
μA
μA
%/V
dB
40
20
1.0
0.20
8
V
ppm/°С
10.0
V
IN
0.25
30
mA
MΩ
V
V
μVrms
UNIT
V
V
V
mV
μA
μA
%/V
dB
40
20
1.0
0.20
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QW-R502-038,H
LR1102
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Resistance
CE Input Voltage ”H”
CE Input Voltage ”L”
Output Noise
SYMBOL
V
IN
TEST CONDITIONS
MIN
2
TYP
±100
2.5
1.5
0.00
B
W
= 10Hz ~ 100kHz
200
5.0
CMOS IC
MAX
8
UNIT
V
ppm/°С
ΔV
OUT
/ΔT I
OUT
= 30mA, -20°С≤T
OPR
≤85°С
I
LIMIT
R
PD
V
CEH
V
CEL
eN
V
OUT
=0V
10.0
V
IN
0.25
30
mA
MΩ
V
V
μVrms
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
(T
OPR
=25°С)
PARAMETER
Output Current
Dropout Voltage
SYMBOL
I
OUT
V
D
TEST CONDITIONS
V
IN
-V
OUT
= 1.0V
2.5≤V
OUT
≤5.0
2.5≤V
OUT
≤2.7
I
OUT
= 100mA
2.8≤V
OUT
≤3.3
3.4≤V
OUT
≤5.0
MIN
150
TYP
0.18
0.18
0.15
MAX
0.30
0.25
0.22
UNIT
mA
V
V
V
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QW-R502-038,H
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