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PDF L1131C Data sheet ( Hoja de datos )
| Número de pieza | L1131C | |
| Descripción | LOW NOISE 150mA LDO REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
L1131C
Preliminary
LOW NOISE 150mA LDO
REGULATOR
CMOS IC
DESCRIPTION
The UTC L1131C 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 normal operation of UTC L1131C, the dropout voltage is
very low, and the response of line transient and load transient are
very well.
Inside each UTC L1131C, there’re many functions which can be
seen in the block figure, for example, a voltage reference unit, an
error amplifier, resistor-net for voltage setting, a current limit circuit,
and a chip enable circuit.
The UTC L1131C can be used as an ideal of power source for
hand-held communication equipment, such as cameras, VCRs,
camcorders and other battery-powered equipment.
FEATURES
* Ultra Supply Current: 75µA(typ.)
* Standby Mode: 0.1µA(typ.)
* Very Low Dropout Voltage: 0.28V(typ.) @IOUT=150mA, VOUT=2.5V
* Ripple Rejection: 70dB(typ.)@f=1kHz
60dB(typ.)@f=10kHz
* Temperature-Drift Coefficient
of Output Voltage: ±100ppm/°C(typ.)
* Well Line Regulation: 0.02%/V(typ.)
* Output Voltage Accuracy: ±2.0%(typ.)
* Internal Fold Back Protection Circuit
* CIN=COUT=1µF or more (Ceramic capacitors) are recommended to
be used with this IC
* Halogen Free
ORDERING INFORMATION
Ordering Number
L1131CG-xx-AF5-R
Note: Pin Assignment: I:VIN
O:VOUT
Package
SOT-25
G:GND C:CE
1
I
N:NC
Pin Assignment
234
GCN
5
O
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2009 Unisonic Technologies Co., Ltd
1 of 6
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1 page  
L1131C
Preliminary
CMOS IC
ELECTRICAL CHARACTERISTICS(Cont.)
L1131C-2.5V
PARAMETER
Output Voltage
Input Voltage
Load Regulation
Output Current
Supply Current
Supply Current (Standby)
Short Current Limit
CE Input Voltage
Output Noise
CE Pull-down Resistance
High
Low
Ripple Rejection
Dropout Voltage
Line Regulation
Output Voltage
Temperature Coefficient
On Resistance of Nch for Auto
Discharge
SYMBOL
TEST CONDITIONS
VOUT
VIN = Set VOUT+1V
1mA ≤ IOUT ≤30mA
VIN
ΔVOUT
ΔIOUT
VIN = Set VOUT+1V
1mA ≤ IOUT≤ 150mA
IOUT VIN−VOUT = 1.0V
ISS VIN = Set VOUT+1V, IOUT = 0mA
IST-BY VIN= Set VOUT+1V VCE = GND
ILIMIT VOUT = 0V
VCEH
VCEL
eN BW = 10Hz ~ 100kHz
RPD
RR Ripple 0.5Vp−p
f=1kHz
VIN−VOUT = 1.0V, IOUT = 30mA f=10kHz
VD
ΔVOUT
ΔVIN
ΔVOUT
ΔT
IOUT=150mA
Set VOUT+0.5V ≤VIN≤6.0V
IOUT = 30mA
IOUT = 30mA
−40°C ≤ TOPR ≤85°C
MIN
2.45
150
1.5
0.0
0.7
TYP
22
75
0.1
40
30
2.0
70
60
0.28
0.02
±100
MAX UNIT
2.55 V
6.0 V
40 mV
95
1.0
VIN
0.3
8.0
0.50
mA
μA
μA
mA
V
V
µVrms
MΩ
dB
dB
V
0.10 %/V
ppm/°С
RLOW VCE = 0V
60 Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-308.b
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L1131C.PDF ] | |
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