Datasheet

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:VIN O:VOUT G:GND
S: SHDN
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
Package
TO-263
TO-263
TO-263
TO-263
TO-263-5
TO-263-5
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
A: SENSE
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L11830
„
Preliminary
CMOS IC
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
TO-263
15
18
25
33
50
:1.5V
:1.8V
:2.5V
:3.3V
:5.0V
TO-263-5
15
18
25
33
50
:1.5V
:1.8V
:2.5V
:3.3V
:5.0V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MARKING
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L11830
Preliminary
„
PIN CONFIGURATION
„
PIN DESCRIPTION
PIN NAME
VIN
GND
SHDN
VOUT
SENSE
CMOS IC
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 VIN for normal operation.
Output Voltage
Remote sense pin.
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L11830
„
Preliminary
CMOS IC
BLOCK DIAGRAM
VIN
ON
OFF
Thermal
Sensor
Current Limit
SHDN
SHDN
VOUT
VREF
SENSE
+
ERR AMP
-
GND
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L11830
„
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°С)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VIN
7
V
Power Dissipation
PD
Internally limited
mW
Junction Temperature
TJ
+150
°С
Operation Temperature
TOPR
-40 ~ +125
°С
Storage Temperature
TSTG
-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
θJA
θJC
RATINGS
64
4
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(VIN = VOUT + 1V whichever is greater, CIN =0.1µF, COUT =2.2µF(Ceramic), TA= 25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
VIN
Note1
6
V
TA=25°С , IOUT= 1mA ~3A
-2
2
%
Output Voltage Accuracy
VOUT
TA=0~85°С, IOUT= 1mA~3A
-3
3
Maximum Output Current
IOUT
3
A
Short-Circuit Current Limit
ILIMIT
VOUT>1.2V
4.5
A
Short-Circuit Current
ISC
VOUT<0.4V
1
A
IOUT = 0mA
60
350
Ground Pin Current
IGND
µA
IOUT= 1mA to 3A
60
1.5V<=VOUT<=1.8V
1000
Dropout Voltage (Note 2 )
VD
IOUT=3A 1.8V<VOUT<2.5V
700
mV
2.5<=VOUT
600
Line Regulation
ΔVOUT
ΔVIN × VOUT
Load Regulation
Output Voltage Noise
Shutdown Supply Current
Power Supply Rejection
Shutdown Threshold
ΔVOUT
eN
IOFF
PSRR
VIN=VOUT+VD~6V
0.08
0.18
%/V
VIN=VOUT+1V, IOUT=10mA~3A
f=10Hz to100kHz, COUT=2.2μF
0.25
30
1
%
µVRMS
2
10
µA
SHDN =GND
IOUT=100mA
COUT=10μF
VIH
VIL
TSHDN
DTSHDN
f=100Hz
f=1kHz
60
45
dB
2
0.4
Thermal Shutdown Temperature
160
Thermal Shutdown Hysteresis
50
Note: 1. VIN(MIN)= VOUT+ VDROPOUT
2. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) × 98%
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
V
°С
5 of 6
QW-R502-536.b
L11830
„
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
For To-263
For TO-263-5
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 6
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