LR5966G-XX-TN5-R [UTC]
5A LOW DROPOUT LINEAR REGULATOR; 5A低压差线性稳压器
| 型号： | LR5966G-XX-TN5-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | 5A LOW DROPOUT LINEAR REGULATOR |
| 文件： | 总5页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
Pin Assignment
Package
Packing
Lead Free
Halogen Free
1
S
S
2
I
3
G
G
4
O
O
5
A
A
LR5966L-xx-TN5-R
LR5966L-xx-TN5-T
LR5966G-xx-TN5-R
LR5966G-xx-TN5-T
TO-252-5
TO-252-5
Tape Reel
Tube
I
Note: Pin Assignment: I:VIN O:VOUT G:GND S: SHDN A: SET
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LR5966
CMOS IC
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
TO-252-5
33 :3.3V
PIN CONFIGURATION
5
4
3
SET
VOUT
GND
VIN
2
1
SHDN
PIN DESCRIPTION
PIN NO
PIN NAME
DESCRIPTION
Active-Low Shutdown Input. A logic low at SHDN reduces supply current to 0.01µA.
Connect SHDN to VIN for normal operation.
1
SHDN
2
3
4
VIN
Power Input Voltage. Supply voltage can range from 2.25V to 6V.
GND
VOUT
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.
5
SET
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LR5966
CMOS IC
BLOCK DIAGRAM
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LR5966
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°С)
PARAMETER
SYMBOL
VIN
RATINGS
7
UNIT
V
Supply Voltage
Power Dissipation
PD
1250
mW
°С
Junction Temperature
Operation Temperature
Storage Temperature
TJ
+125
TOPR
TSTG
-40 ~ +125
-65 ~ +150
°С
°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
SYMBOL
θJA
RATINGS
UNIT
°C/W
°C/W
Junction to Ambient
Junction to Case
64
4
θJC
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
Input Voltage
SYMBOL
VIN
TEST CONDITIONS
MIN
2.25
-2
TYP
MAX
UNIT
6
2
3
V
TA＝25°С , IOUT= 1mA ~5A
TA＝0~85°С, IOUT= 1mA~5A
Output Voltage Accuracy
VOUT
%
-3
Maximum Output Current
Short-Circuit Current Limit
IOUT
5
A
A
ILIMIT
VOUT>1.2V
7.5
Measured on SET, VIN=2.8V,
Reference Current
Ground Pin Current
VREF
IGND
0.784
0.8
0.816
V
I
OUT=10mA
IOUT = 0mA
60
90
µA
IOUT= 1mA to 5A
1.5V<=VOUT<=1.8V
1800
1000
650
Dropout Voltage (Note)
Line Regulation
VD
IOUT=5A
mV
1.8V<VOUT<2.5V
2.5<=VOUT
ΔV
OUT
ΔV ×V
IN OUT
VIN=VOUT+VD~6V
0.08
0.18
1
%/V
Load Regulation
ΔVOUT
eN
VIN=VOUT+1V, IOUT=10mA~5A
f=10Hz to100kHz，COUT=2.2μF
0.25
30
%
µVRMS
µA
Output Voltage Noise
Shutdown Supply Current
IOFF
SHDN =GND
0.01
60
5
I
C
OUT=100mA
OUT=10μF
f=100Hz
f=1kHz
Power Supply Rejection
Shutdown Threshold
PSRR
dB
V
45
VIH
VIL
1.6
0.6
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSHDN
DTSHDN
160
50
°С
Note: The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.
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LR5966
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.
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