UR1171AHG-S08-R [UTC]
1.5A LDO REGULATOR;
| 型号： | UR1171AHG-S08-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | 1.5A LDO REGULATOR |
| 文件： | 总5页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UR1171
Preliminary
CMOS IC
1.5A LDO REGULATOR
DESCRIPTION
The UTC UR1171 is a typical LDO (linear regulator) with the
features of high output voltage accuracy, low supply current, low
ON-resistance, and high ripple rejection.
During operation of the UTC UR1171, the dropout voltage is
very low and the response of line transient and load transient are
very well.
Internally, there’re many functions of UTC UR1171 which can
be seen in the block figure. There are a voltage reference unit, an
error amplifier, resistor-net for voltage setting, a current limit circuit,
and a chip enable circuit in each UTC UR1171.
SOP-8
The UTC UR1171 can be used as an ideal of the power supply
for hand-held communication equipment, such as: power source for
portable communication equipment, power source for electrical
appliances, for example, cameras, VCRs and camcorders and
power source for battery-powered equipment.
FEATURES
* Low standby current (TYP=0.1µA)
* Supply current (TYP=80µA)
* Output current (MIN=1.5A@VIN=VOUT+1.0V)
* Output voltage accuracy (±2.0%)
* Output voltage (1.2V~5.0V)
* Low dropout voltage (TYP=0.09V@VOUT=3.0V, IOUT=300mA)
* Line regulation (TYP=0.05%/V)
* Low temperature-drift coefficient of output voltage
* Built-in thermal shunt circuit
* Built-in current limit circuit
ORDERING INFORMATION
Ordering Number
Lead Free
Package
Packing
Halogen Free
UR1171xxL-S08-T
UR1171xxL-S08-R
UR1171xxG-S08-T
UR1171xxG-S08-R
SOP-8
SOP-8
Tube
Tape Reel
UR1171xxL-S08-T
(1) T: Tube, R: Tape Reel
(2) S08: SOP-8
(1)Packing Type
(2)Package Type
(3) L: Lead Free, G: Halogen Free
(4) AH: 1.5A/Active High
(3)Lead Free
(4)Enable Threshold Level
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Copyright © 2013 Unisonic Technologies Co., Ltd
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UR1171
Preliminary
CMOS IC
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
VOUT
GND
CE
DESCRIPTION
1
2, 5
3
Output Pin
Ground Pin
Chip Enable Pin
No Connection
Input Pin
4, 7, 8
6
NC
VDD
BLOCK DIAGRAM
VDD
6
1
2
VOUT
GND
-
+
Vref
Current Limit
and OTP
GND
3
5
CE
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UR1171
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VIN
RATINGS
7.0
UNIT
V
Input Voltage
Input Voltage(CE or CE Input Pin)
Output Voltage
VCE
-0.3~VIN+0.3
-0.3~VIN+0.3
3.5
V
VOUT
IOUT
V
Output Current
A
Power Dissipation
PD
606
mW
°C
°C
Operating Temperature
Storage Temperature
TOPT
TSTG
-40~85
-55~125
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.
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
UR1171AH
PARAMETER
SYMBOL
VIN
TEST CONDITIONS
MIN
TYP MAX UNIT
Input Voltage
6.0
160
V
µA
µA
V
Supply Current
Standby Current
Output Voltage
Output Current
Load Regulation
ISS
VIN-VOUT=1.0V, VCE=VIN
80
ISTB
VIN-VOUT=1.0V, VCE=0V
VIN-VOUT=1.0V, IOUT=200mA
VIN-VOUT=1.0V
0.1
2.0
VOUT
IOUT
x0.98
1.5
x1.02
A
∆VOUT/∆IOUT VIN-VOUT=1.0V, 1mA≤IOUT≤300mA
IOUT=300mA, VOUT=1.5≤VOUT<1.6
10
60
mV
V
0.16
0.14
0.13
0.12
0.10
0.09
0.35
0.32
0.28
0.24
0.21
0.18
IOUT=300mA, VOUT=1.6≤VOUT<1.7
V
IOUT=300mA, VOUT=1.7≤VOUT<1.8
VDIF
V
Dropout Voltage
IOUT=300mA, VOUT=1.8≤VOUT<2.0
V
IOUT=300mA, VOUT=2.0≤VOUT<2.5
IOUT=300mA, VOUT=2.5≤VOUT≤5.0
V
V
1.5≤VOUT<1.6
1.6≤VOUT≤5.0
1.5≤VOUT<4.7
4.7≤VOUT≤5.0
IOUT=200mA, VOUT=2.1V≤VIN<6.0V
Line Regulation
∆VOUT/∆VIN
0.05
50
0.30
%/V
dB
IOUT=200mA, VOUT+0.5V≤VIN≤6.0V
f=1kHz, Ripple 0.5 VP-P,VIN−VOUT=1.0V
f=1kHz, Ripple 0.5VP-P, VIN=5.75V
Ripple Rejection
Output Voltage
RR
ppm
/°C
mA
MΩ
V
∆VOUT/∆T IOUT=10mA, -40°C ≤ TA ≤ 85°C
±100
Temperature Coefficient
Short Current Limit
ILIM
RPD
VOUT=0V
200
5.0
Pull-down resistance for CE pin
CE Input Voltage “H”
2.5
1.5
10.0
VIN
VCEH
Thermal Shutdown Detector
Threshold Temperature
Thermal Shutdown Released
Temperature
TTSD
TTSR
Junction Temperature
Junction Temperature
150
120
°C
°C
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UR1171
Preliminary
CMOS IC
TEST CIRCUIT
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UR1171
Preliminary
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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