Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LR5966
CMOS IC
5A LOW DROPOUT LINEAR
REGULATOR
„
DESCRIPTION
The UTC LR5966 belonged to low quiescent current(60μA typ.),
low dropout, linear regulators operating from 2.25V to 6V input and
are guaranteed to deliver 5A. 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 LR5966 are
designed and optimized for battery-powered systems to work with
low noise.
The UTC LR5966 consume less than 0.01μA in shutdown
mode. Other features include ultra low dropout voltage, current
limiting protection, thermal shutdown protection and high ripple
rejection ratio.
„
FEATURES
* 5A Guaranteed Output Current
* 0.01μA Shutdown Current
* Low Temperature Coefficient
* Current Limiting Protection
* Thermal Shutdown Protection
* Excellent Line/Load Transient
„
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LR5966L-xx-TN5-R
LR5966G-xx-TN5-R
LR5966L-xx-TN5-T
LR5966G-xx-TN5-T
Note: Pin Assignment: I:VIN O:VOUT G:GND
S: SHDN
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Copyright © 2011 Unisonic Technologies Co., Ltd
Package
TO-252-5
TO-252-5
1
S
S
Pin Assignment
2
3
4
5
I
G O A
I
G O A
Packing
Tape Reel
Tube
A: SET
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QW-R102-046.a
LR5966
CMOS IC
MARKING INFORMATION
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PACKAGE
VOLTAGE CODE
TO-252-5
33 :3.3V
MARKING
PIN CONFIGURATION
„
5
4
3
2
1
SET
VOUT
GND
VIN
SHDN
PIN DESCRIPTION
„
PIN NO
PIN NAME
1
SHDN
2
3
4
VIN
GND
VOUT
5
SET
DESCRIPTION
Active-Low Shutdown Input. A logic low at SHDN reduces supply current to 0.01µA.
Connect SHDN to VIN for normal operation.
Power Input Voltage. Supply voltage can range from 2.25V to 6V.
Ground
Output Voltage
When this pin is connected to ground, turns to fixed output voltage operation.
When this pin is connected to an external resistor divider, turns to adjustable output
voltage mode operation.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R102-046.a
LR5966
BLOCK DIAGRAM
+
„
CMOS IC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-046.a
LR5966
„
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°С)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VIN
7
V
Power Dissipation
PD
1250
mW
Junction Temperature
TJ
+125
°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 (TA= 25°C, unless otherwise specified)
VIN = VOUT + 1V or VIN =2.25V whichever is greater, CIN =1µF, COUT =2.2µF(Ceramic)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Input Voltage
VIN
2.25
TA=25°С , IOUT= 1mA ~5A
-2
Output Voltage Accuracy
VOUT
TA=0~85°С, IOUT= 1mA~5A
-3
Maximum Output Current
IOUT
Short-Circuit Current Limit
ILIMIT
VOUT>1.2V
Measured on SET, VIN=2.8V,
0.784
Reference Current
VREF
IOUT=10mA
IOUT = 0mA
Ground Pin Current
IGND
IOUT= 1mA to 5A
1.5V<=VOUT<=1.8V
Dropout Voltage (Note)
VD
IOUT=5A
1.8V<VOUT<2.5V
2.5<=VOUT
Line Regulation
ΔVOUT
ΔVIN × VOUT
Load Regulation
Output Voltage Noise
Shutdown Supply Current
Power Supply Rejection
ΔVOUT
eN
IOFF
PSRR
TYP
MAX
6
2
3
5
7.5
0.8
%
A
A
0.816
60
90
V
µA
1800
1000
650
mV
VIN=VOUT+VD~6V
0.08
0.18
%/V
VIN=VOUT+1V, IOUT=10mA~5A
f=10Hz to100kHz,COUT=2.2μF
0.25
30
0.01
60
45
1
%
µVRMS
µA
SHDN =GND
IOUT=100mA
COUT=10μF
f=100Hz
f=1kHz
5
dB
VIH
1.6
VIL
0.6
Thermal Shutdown Temperature
TSHDN
160
Thermal Shutdown Hysteresis
DTSHDN
50
Note: The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.
Shutdown Threshold
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
UNIT
V
V
°С
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LR5966
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CMOS IC
TYPICAL APPLICATION CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-046.a
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