UNISONIC TECHNOLOGIES CO., LTD L11830
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.
CMOS IC
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 Package TO-263 TO-263 TO-263 TO-263 TO-263-5 TO-263-5 A: SENSE Pin Assignment 12345 IGOIGOGOI GOI ISGAO ISGAO Packing Tape Reel Tube Tape Reel Tube Tape Reel Tube
www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd
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L11830
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
CMOS IC
TO-263
15 18 25 33
:1.5V :1.8V :2.5V :3.3V
TO-263-5
15 18 25 33
:1.5V :1.8V :2.5V :3.3V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-536.a
L11830
PIN CONFIGURATION
CMOS IC
PIN DESCRIPTION
PIN NAME VIN GND SHDN VOUT 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 VIN for normal operation. Output Voltage Remote sense pin.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-536.a
L11830
BLOCK DIAGRAM
VIN
CMOS IC
ON SHDN
Current Limit
SHDN
Thermal Sensor
OFF
VOUT
VREF
SENSE
+
ERR AMP
-
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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L11830
ABSOLUTE MAXIMUM RATING (Ta=25°С)
CMOS IC
PARAMETER SYMBOL RATINGS UNIT Supply Voltage VIN 7 V Power Dissipation TO-263/TO-263-5 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 TO-263/TO-263-5 TO-263/TO-263-5 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
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