UNISONIC TECHNOLOGIES CO., LTD
LR1107/E
600mA FAST ULTRA LOW
DROPOUT LINEAR REGULATOR
DESCRIPTION
The UTC
LR1107/E
operate from a +2.5V ~ +7.0V input supply as
fast ultra low-dropout linear regulators. Wide output voltage range
options are available. The fast response characteristic to make UTC
LR1107/E
suitable for low voltage microprocessor application. The low
quiescent current operation and low dropout quality caused by the
CMOS process.
The UTC
LR1107/E
has ultra low dropout voltage; 300mV at
600mA load current typically.
The ground pin current is typically 200uA at 1mA load current.
SET/ADJ Mode (for LR1107): Connect an external resistive
voltage-divider from V
OUT
to this pin to set the output voltage from
1.145V to 5V.
ERROR
Flag (for LR1107E): When the output voltage drops 10% below nominal value Error flag goes low.
Output Voltage Precision: Multiple output voltage options are available and ranging from 1.2V ~ 5.0V at room
temperature with a guaranteed accuracy of ±1.5%, and ±3.0% when varying line, load and temperature.
CMOS IC
FEATURES
* Ultra Low Dropout Voltage
* Low Ground Pin Current
* 0.68% Load Regulation
* The Guaranteed Output Current is 600mA DC
* Output Voltage Accuracy ± 1.5%
*
ERROR
Flag Indicates Output Status
* V
OUT
can be Adjusted From 1.145V to 5V.
* Low Output Capacitor Required
* Overtemperature Protection and Overcurrent Protection
ORDERING INFORMATION
Ordering Number
Lead Free
LR1107L-xx-AA3-A-R
LR1107L-xx-AE3-3-R
LR1107L-xx-AB3-C-R
LR1107L-xx-AB3-D-R
LR1107L-xx-AF5-R
LR1107EL-xx-AF5-R
Note: Pin Assignment:
Halogen Free
LR1107G -xx-AA3-A-R
LR1107G -xx-AE3-3-R
LR1107G -xx-AB3-C-R
LR1107G -xx-AB3-D-R
LR1107G-xx-AF5-R
LR1107EG-xx-AF5-R
O:V
OUT
G:GND SD:
SD
Package
SOT-223
SOT-23
SOT-89
SOT-89
SOT-25
SOT-25
E:
ERROR
Pin Assignment
1
2
3
4
5
G O
I
-
-
O G
I
-
-
G
I
O
-
-
I
G O -
-
I
G SD S O
I
G SD E O
S：SET/ADJ
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
I:V
IN
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QW-R102-033.H
LR1107/E
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
LR1107
XX
1
3
SOT-23
15 :1.5V
18:1.8V
25:2.5V
28:2.8V
2J:2.85V
33:3.3V
Voltage Code
Voltage Code
ESXX
2
5
1
4
L: Lead Free
G: Halogen Free
2
3
CMOS IC
SOT-223
Pin Code
Voltage Code
L: Lead Free
G: Halogen Free
Date Code
SOT-25
ESXX□
1
2
3
L: Lead Free
G: Halogen Free
Pin Code
SOT-89
Date Code
XX
LR1107
1
2
3
Voltage Code
L: Lead Free
G: Halogen Free
PIN CONFIGURATION
V
OUT
5
ERROR
4
V
OUT
5
SET/ADJ
4
1
2
3
1
2
3
V
IN
GND SD
SOT-25 (for LR1107E)
V
IN
GND SD
SOT-25 (for LR1107)
SOT-23
PIN DESCRIPTION
PIN NAME
V
IN
GND
SD
ERROR
(for LR1107E)
SET/ADJ
(for LR1107)
V
OUT
I/O
Input supply
Ground
I
O
O
O
DESCRIPTION
Shutdown
LR1107/E
enable; when the
SD
pin connects to GND will shutdown the
LR1107/E;
At normal operation,
SD
must be tied to V
DD
through a 10KΩ pull up resistor.
Error flag, active low; when the output dropout of regulation due to low input voltage, the
LR1107E
produces a logic low signal at the
ERROR
pin.
Voltage-Setting Input. Connect an external resistive voltage-divider from V
OUT
to this pin to
set the output voltage.
Output voltage
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QW-R102-033.H
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
LR1107/E
BLOCK DIAGRAM
CMOS IC
V
IN
SD
V
OUT
SET/ADJ
80mV
GND
LR1107
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QW-R102-033.H
LR1107/E
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PARAMETER
Input Voltage (Operating), (Note 10)
Input Voltage (Survival)
Shutdown Input Voltage
Output Voltage (Survival), (Note 4, 5)
I
OUT
(Survival)
Maximum Voltage for
ERROR
, SET/ADJ Pin
Maximum Operating Current (DC)
Power Dissipation (Note 2)
Junction Temperature
Operating Temperature
Storage Temperature
P
D
T
J
T
OPR
T
STG
SYMBOL
V
IN
V
I(SHDN)
V
OUT
RATINGS
2.5~7.0
-0.3~+7.5
-0.3~V
IN
+0.3
-0.3~+7.5
Short Circuit Protected
V
IN
+0.3
600
Internally Limited
150
-40~+125
-65~+150
CMOS IC
UNIT
V
V
V
V
V
mA
°C
°C
°C
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for T
J
= 25°C, and limits in
boldface type
apply over the full operating temperature
range. (T
J
= 25°C, V
IN
= V
O(NOM)
+ 1V, I
L
= 10 mA, C
OUT
= 22μF, V
SD
= V
IN
-0.3V, unless otherwise specified.)
TYP
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
UNIT
(Note 3)
Output Voltage Tolerance (Note 6)
Output Voltage Line Regulation (Note 6)
Output Voltage Load Regulation (Note 6)
Dropout Voltage (Note 8)
Ground Pin Current In Normal Operation
Mode
Ground Pin Current In Shutdown Mode
Peak Output Current
SHORT CIRCUIT PROTECTION
Short Circuit Current
OVER TEMPERATURE PROTECTION
Shutdown Threshold
Thermal Shutdown Hysteresis
SHUTDOWN INPUT
Shutdown Threshold
Turn-off Delay
Turn-on Delay
SD
Input Current
V
OUT
Δ
V
OUT
V
OUT
V
D
I
GND1
I
GND2
I
O(PEAK)
I
SC
T
SHDN(THR)
T
SHDN(HYS)
V
SHDN
t
D(OFF)
t
D(ON)
I
SD
0 mA
≤
I
L
≤
600mA
V
OUT
+1≤ V
IN
≤
7.0V
V
OUT
+1V<V
IN
<7.0V
10 mA
<
I
L
<
600mA
I
L
= 600mA
I
L
= 0 mA
I
L
= 600mA
V
SD
≤0.2V
(Note 9)
(Note 2)
-1.5
-3
0
0.725
0.68
300
200
300
0.02
800
2
165
10
+1.5
+3
%
%
%
500
mV
μA
5
600
μA
mA
A
°C
°C
V
V
μs
μs
nA
Output = High
Output = Low
I
L
= 600mA
I
L
= 600mA
V
SD
= V
IN
V
IN
-0.3
V
IN
0
20
60
1
0.2
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QW-R102-033.H
LR1107/E
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
ERROR
Flag Saturation
ERROR
Flag Pin Leakage Current
CMOS IC
SYMBOL
V
EF(SAT)
I
I(LEAK)
V
T
V
THR
t
D
V
SET
TEST CONDITIONS
I
SINK
= 100μA
(Note 7)
(Note 7)
MIN
TYP
(Note 3)
MAX
0.1
16
8
UNIT
V
nA
%
%
μs
V
ERROR FLAG COMPARATOR (for LR1107E)
0.02
1
5
2
7
4.2
17
1.145
Threshold
Threshold Hysteresis
Flag Reset Delay
SET/ADJ Mode (for LR1107 5pins)
SET Voltage
AC PARAMETERS
Ripple Rejection
Output Noise Density
Output Noise Voltage
Measured on ADJ,
I
OUT
=10mA
V
IN
= V
OUT
+ 1.5V
C
OUT
=100uF, V
OUT
= 3.3V
V
IN
= V
OUT
+ 0.3V
C
OUT
=100uF, V
OUT
= 3.3V
f = 120Hz
BW = 10Hz – 100kHz
1.110
1.188
60
40
0.8
150
dB
dB
μV
μVrms
PSRR
ρ
n(l/f)
eN
Note 1. 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. Conditions
for which the device is intended to be functional is indicated by operating ratings, but specific performance
limits isn’t be guaranteed. To make sure of specifications and test conditions, read Electrical Characteristics.
Only for the test conditions listed the guaranteed specifications can be applied. When the device is not
operated under the listed test conditions some performance characteristics may degrade.
2. Devices must be derated based on package thermal resistance at elevated temperatures.
3. The most likely parametric norm represents at 25°C.
4. The LR1107/E output must be diode-clamped to ground. If used in a dual-supply system where the regulator
load is returned to a negative supply.
5. Between the V
IN
and V
OUT
terminals the output PMOS structure contains a diode. This diode is reverse
biased normally. If the voltage at the output terminal is forced to be higher than the voltage at the input
terminal this diode will get forward biased. This diode can withstand 650mA of peak current and 120mA of
DC current typically.
6. Output voltage line regulation is the change in output voltage from the nominal value which is due to change
in the input line voltage. Which is defined as the change in output voltage from the nominal value due to
change in load current is output voltage load regulation. The load regulation and line regulation specification
include the typical number only. But, the limits for load and line regulation are included in the output voltage
tolerance specification.
7.
ERROR
Flag hysteresis and threshold are specified as regulated output voltage’s percentage.
8. At which the output drops 2% below the normal value dropout voltage is defined as the minimum input to
output differential voltage. Only to output voltages of 2.5V and above dropout voltage specification applies.
For output voltages below 2.5V, since the minimum input voltage is 2.5V, the drop-out voltage is nothing but
the input to output differential.
9. Specification has been tested at
−40°C≤T
J
≤
85°C cause under shutdown conditions the temperature rise of
the device is negligible.
10. The minimum operating V
IN
value is equal to V
OUT(NOM)
+ V
DROPOUT
] or 2.5V, just the greater.
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QW-R102-033.H
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