UNISONIC TECHNOLOGIES CO., LTD
L11830
Preliminary
CMOS IC
3A LOW DROPOUT LINEAR
REGULATOR
DESCRIPTION
The UTC
L11830
belonged to low quiescent current, low
dropout, linear regulators operated from 2.25V to 6V input and are
guaranteed to deliver 3A.
Wide range of preset output voltage
options are available. Built-in low on-resistance transistor provides
low dropout voltage and large output current.
The UTC
L11830
is
designed and optimized for battery-powered systems to work with
low noise.
The UTC
L11830
consumes less than 2μA in shutdown mode.
Other
features include ultra low dropout voltage, current limiting
protection, thermal shutdown protection and high ripple rejection
ratio.
FEATURES
* 3A Guaranteed Output Current
*
low quiescent current: 60μA (typ.)
* 2μA Shutdown Current
* Short Circuit Current Fold-back
* Low Temperature Coefficient
* Current Limiting Protection
* Thermal Shutdown Protection
* Excellent Line/Load Transient
* SENSE Option Improves Load Regulation
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L11830L-xx-TQ2-D-R
L11830G-xx-TQ2-D-R
L11830L-xx-TQ2-D-T
L11830G-xx-TQ2-D-T
L11830L-xx-TQ3-A-R
L11830G-xx-TQ3-A-R
L11830L-xx-TQ3-A-T
L11830G-xx-TQ3-A-T
L11830L-xx-TQ5-R
L11830G-xx-TQ5-R
L11830L-xx-TQ5-T
L11830G-xx-TQ5-T
Note: Pin Assignment: I:V
IN
O:V
OUT
G:GND
S: SHDN
Package
TO-263
TO-263
TO-263
TO-263
TO-263-5
TO-263-5
A: SENSE
Pin Assignment
1 2 3 4 5
I G O -
-
I G O -
-
G O I
-
-
G O I
-
-
I S G A O
I S G A O
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-536.b
L11830
PIN CONFIGURATION
Preliminary
CMOS IC
PIN DESCRIPTION
PIN NAME
V
IN
GND
SHDN
V
OUT
SENSE
DESCRIPTION
Power Input Voltage. Supply voltage can range from 2.25V to 6V. Bypass with a 0.1µF capacitor
to GND.
Ground
Active-Low Shutdown Input. A logic low at SHDN reduces supply current to 0.01µA. Connect
SHDN to V
IN
for normal operation.
Output Voltage
Remote sense pin.
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www.unisonic.com.tw
3 of 6
QW-R502-536.b
L11830
PARAMETER
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
(T
A
=25°С)
SYMBOL
RATINGS
UNIT
Supply Voltage
V
IN
7
V
Power Dissipation
P
D
Internally limited
mW
Junction Temperature
T
J
+150
°С
Operation Temperature
T
OPR
-40 ~ +125
°С
Storage Temperature
T
STG
-65 ~ +150
°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.
THERMAL DATA
PARAMETER
Junction to Ambient
Junction to Case
SYMBOL
θ
JA
θ
JC
RATINGS
64
4
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT
+ 1V whichever is greater, C
IN
=0.1µF, C
OUT
=2.2µF(Ceramic), T
A
= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
V
IN
Note1
6
V
T
A
＝25°С
, I
OUT
= 1mA ~3A
-2
2
%
Output Voltage Accuracy
V
OUT
T
A
＝0~85°С,
I
OUT
= 1mA~3A
-3
3
Maximum Output Current
I
OUT
3
A
Short-Circuit Current Limit
I
LIMIT
V
OUT
>1.2V
4.5
A
Short-Circuit Current
I
SC
V
OUT
<0.4V
1
A
I
OUT
= 0mA
60
350
Ground Pin Current
I
GND
µA
I
OUT
= 1mA to 3A
60
1.5V<=V
OUT
<=1.8V
1000
Dropout Voltage (Note 2 )
V
D
I
OUT
=3A 1.8V<V
OUT
<2.5V
700
mV
2.5<=V
OUT
600
Line Regulation
Load Regulation
Output Voltage Noise
Shutdown Supply Current
Power Supply Rejection
Shutdown Threshold
ΔV
OUT
ΔV
IN
× V
OUT
V
IN
=V
OUT
+V
D
~6V
V
IN
=V
OUT
+1V, I
OUT
=10mA~3A
f=10Hz to100kHz, C
OUT
=2.2μF
SHDN =GND
I
OUT
=100mA
C
OUT
=10μF
f=100Hz
f=1kHz
2
0.08
0.25
30
2
60
45
0.18
1
10
%/V
%
µV
RMS
µA
dB
ΔV
OUT
eN
I
OFF
PSRR
V
IH
V
IL
T
SHDN
DT
SHDN
0.4
V
°С
Thermal Shutdown Temperature
160
Thermal Shutdown Hysteresis
50
Note: 1. V
IN(MIN)
= V
OUT
+ V
DROPOUT
2. The dropout voltage is defined as V
IN
-V
OUT
, which is measured when V
OUT
is V
OUT(NORMAL)
× 98%
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www.unisonic.com.tw
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QW-R502-536.b
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