L1131A [UTC]
LOW NOISE 150mA LDO REGULATOR;
| 型号： | L1131A |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW NOISE 150mA LDO REGULATOR |
| 文件： | 总5页 (文件大小：172K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
L1131A
Preliminary
CMOS IC
LOW NOISE 150mA LDO
REGULATOR
DESCRIPTION
The UTC L1131A is a COMS positive linear regulator. One of
it’s feature is the very low quiescent current typical as low as 10μA
and its dropout voltage is extremely low with 150mA output current,
and high ripple rejection. Each of these ICs consists of a voltage
reference unit, an error amplifier, resistor-net for voltage setting, a
short current limit circuit, a chip enable circuit, and so on.
These ICs perform with low dropout voltage and the chip-enable
function. The supply current at no load of this IC is only 4.3μA, and
the line transient response and the load transient response of the
UTC L1131A Series are excellent, thus these ICs are very suitable
for the power supply for hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy.
Since the packages for these ICs are SOT-23-5 therefore high
density mounting of the ICs on boards is possible.
FEATURES
* Low supply current Typ. 4.3μA
* Standby mode Typ. 0.1μA
* Output Voltage Range 1.2V~5.0V
* Excellent line regulation Typ. 0.02%/V
* Built-in fold back protection circuit
* Ceramic capacitors are recommended to be used with this IC
CIN=COUT=1μF
ORDERING INFORMATION
Ordering Number
Package
Packing
Tape Reel
L1131AG-xx-AE5-R
SOT-23-5
Note: xx: Output Voltage, refer to Marking Information.
L1131AG-xx-AE5-R
(1)Packing Type
(1) R: Tape Reel
(2)Package Type
(2) AE5: SOT-23-5
(3)Output Voltage Code
(4)Green Package
(3) xx: refer to Marking Information
(4) G: Halogen Free and Lead Free
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Copyright © 2016 Unisonic Technologies Co., Ltd
QW-R502-A41.e
L1131A
Preliminary
CMOS IC
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
15: 1.5V
25: 2.5V
28: 2.8V
33: 3.3V
SOT-23-5
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
VDD
DESCRIPTION
1
2
3
4
5
Input pin
GND
CE
Ground pin
Chip enable pin
No connection
Output pin
NC
VOUT
BLOCK DIAGRAM
VDD
VOUT
-
+
VREF
Current Limit
CE
GND
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L1131A
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VIN
RATINGS
6.5
UNIT
V
Input Voltage
Input Voltage (CE Pin)
Output Voltage
VCE
6.5
V
VOUT
IOUT
-0.3~VIN+0.3
160
V
Output Current
mA
mW
°C
°C
Power Dissipation
PD
360
Operating Temperature Range
Storage Temperature Range
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
PARAMETER
SYMBOL
VOUT
TEST CONDITIONS
MIN TYP MAX UNIT
V
IN = Set VOUT+1V,
VOUT≤3.0V
×0.985
×0.980
150
×1.015
×1.020
Output Voltage
Output Current
V
1mA ≤ IOUT ≤30mA
VOUT>3.0V
IOUT
VIN-VOUT=1.0V
mA
mV
VIN=Set VOUT+1V, 1mA≤IOUT≤150mA,
1.2V≤VOUT<2.0V,
28
55
Load Regulation
Dropout Voltage
∆VOUT/∆IOUT
2.0V≤VOUT<3.0V
33
35
66
80
mV
mV
3.0V≤VOUT
refer to the ELECTRICAL CHARACTERISTICS by OUTPUT
VOLTAGE
VDIF
ISS
Supply Current
VIN=Set VOUT+1V, IOUT=0mA
4.3
0.1
18
μA
μA
Supply Current (Standby)
Istandby VIN=Set VOUT+1V, VCE =VDD
1.0
Set VOUT+0.5V≤VIN≤6.0V,
∆VOUT/∆VIN
Line Regulation
0.02 0.10
%/V
dB
I
OUT=30mA
f=1kHz
50
45
Ripple Rejection
RR
f=10kHz, Ripple 0.2Vp-p,
VIN-VOUT=1.0V, IOUT=30mA
dB
Input Voltage
VIN
1.8
6.0
V
Output Voltage
Temperature Coefficient
Short Current Limit
IOUT=30mA
-40°C≤TOPT≤85°C
∆VOUT/∆T
±100
ppm/°C
ILIM
IPD
VOUT=0V
60
0.5
6.0
0.3
30
mA
µA
CE Pull-Down Resistance
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
VCEH
VCEL
en
1.5
0.0
V
V
BW=10Hz~100kHz
VCE=0V
µVrms
On Resistance of Nch Tr. for
auto-discharge (Only for D version)
RLOW
70
Ω
ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE
PARAMETER
SYMBOL
VDIF
TEST CONDITIONS
MIN TYP MAX UNIT
VOUT=1.2V
0.65
0.48
0.41
0.35
0.21
0.18
V
V
V
V
V
V
1.5V<VOUT≤1.6V
1.6V<VOUT≤1.7V
1.7V<VOUT≤2.0V
2.0V<VOUT≤2.7V
2.7V<VOUT≤5.0V
Dropout Voltage
IOUT=150mA
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L1131A
Preliminary
CMOS IC
TEST CIRCUIT
VOUT
GND
VDD
UTC
VOUT
V
IOUT
C2
L1131A
Series
C1
CE
*C1=Ceramic 1.0μF
C2=Ceramic 1.0μF
Fig.1 Standard test Circuit
Fig.2 Supply Current Test Circuit
VOUT
VDD
UTC
L1131A
Series
Pulse
Generator
IOUT
C2
CE
GND
*C2=Ceramic 1.0μF
Fig.3 Ripple Rejection, Line Transient
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L1131A
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
(External Components)
C2 Ceramic 1.0μF
Ex. Murata GRM155B30J105KE18B
Kyocera CM05X5R105K06AB
C1 Ceramic 1.0μF
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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