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PDF LR9270 Data sheet ( Hoja de datos )
| Número de pieza | LR9270 | |
| Descripción | 800mA LDO REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LR9270 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
LR9270
Preliminary
800mA LDO REGULATOR
CMOS IC
DESCRIPTION
The UTC LR9270 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 LR9270, 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 LR9270 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 LR9270.
The UTC LR9270 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
* Ultra-Low supply current
* Output voltage (stepwise setting with a step of 0.1V in the range
of 1.2V~4.0V)
* Output current (MIN=800mA@VIN=VOUT+1.0V)
* Low dropout voltage
* Line regulation
* High output voltage accuracy
* Low temperature-drift coefficient of output voltage
* Built-in thermal shunt circuit
* Built-in current limit circuit
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LR9270xL-xx-AB5-R
LR9270xG-xx-AB5-R
LR9270xL-xx-AF5-R
LR9270xG-xx-AF5-R
Package
SOT-89-5
SOT-25
LR9270xL-xx-AB5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Lead Free
(5)Enable Threshold Level
(1) T: Tube, R: Tape Reel
(2) AB5: SOT-89-5, AF5: SOT-25
(3) xx: refer to Marking Information
(4) L: Lead Free, G: Halogen Free
(5) H: High, L: Low
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-A62.a
1 page  
LR9270
Preliminary
CMOS IC
ELECTRICAL CHARACTERISTICS(Cont.)
LR9270H-xx
PARAMETER
Input Voltage
Supply Current
Standby Current
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Line Regulation
Ripple Rejection
Output Voltage
Temperature Coefficient
Short Current Limit
Pull-down resistance for CE
pin
CE Input Voltage “H”
CE Input Voltage “L”
Thermal Shutdown Detector
Threshold Temperature
Thermal Shutdown Released
Temperature
SYMBOL
VIN
ISS
ISTB
VOUT
IOUT
∆VOUT/∆IOUT
VDIF
∆VOUT/∆VIN
RR
TEST CONDITIONS
VIN-VOUT=1.0V, VCE=VIN
VIN=6.0V, VCE=GND
VIN-VOUT=1.0V, IOUT=100mA
VIN-VOUT=1.0V
VIN-VOUT=1.0V, 1mA≤IOUT≤300mA
VOUT=1.5
VOUT=1.6
IOUT=300mA
VOUT=1.7
VOUT=1.8≤VOUT≤2.0
VOUT=2.1≤VOUT≤2.4
VOUT=2.5≤VOUT≤4.0
IOUT=100mA, VOUT+0.5V≤VIN≤8.0V
f=1kHz,Ripple 0.5Vp-p
∆VOUT/∆T -40°C≤TOPT≤ 85°C
ILIM VOUT=0V
RPD
VCEH
VCEL
TTSD
Junction Temperature
MIN
x0.98
800
1.25
1.5
TYP
80
0.1
30
0.35
0.30
0.25
0.20
0.15
0.12
0.05
50
±100
40
2.5
150
MAX
6.0
160
1.0
x1.02
100
0.45
0.35
0.30
0.25
0.20
0.18
0.30
5
0.25
UNIT
V
µA
µA
V
mA
mV
V
V
V
V
V
V
%/V
dB
ppm
/°C
mA
MΩ
V
V
°C
TTSR
Junction Temperature
120 °C
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R502-A62.a
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LR9270.PDF ] | |
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