UTC LR1148G-AD-AF5 Schematic [ru]
UNISONIC TECHNOLOGIES CO., LTD
W
LR1148 CMOS IC
600mA LO
REGULATOR
DESCRIPTION
The UTC LR1148 belonged to low-noise, low-dropout, linear
regulators operate from 2.3V to 6V input and are guaranteed to
deliver 600mA. 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 LR1148 is designed and
optimized for battery-powered systems to work with low noise.
The UTC LR1148 consumes 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
* 600mA Guaranteed Output Current
* 0.01μA Shutdown Current
* Ultra Low Dropout Voltage
* Low Temperature Coefficient
* Current Limiting Protection
* Thermal Shutdown Protection
* Excellent Line/Load Transient
DROPOUT LINEAR
ORDERING INFORMATION
Ordering Number Package
LR1148G-xx-AF5-R SOT-25 I G S A O Tape Reel
Note: Pin Assignment: I:VIN O:V
LR1148G-xx-AF5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Green Package
G:GND S:EN A: ADJ
OUT
(1) R: Tape Reel
(2) AF5: SOT-25
(3) xx: refer to Marking Information
(4) G: Halogen Free and Lead Free
Pin Assignment
1234 5
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOT-25 AD: ADJ
Packing
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Copyright © 2014 Unisonic Technologies Co., Ltd QW-R502 -A74.b
LR1148 CMOS IC
PIN CONFIGURATION
V
OUT
ADJ
45
2
1
GND
V
IN
3
EN
PIN DESCRIPTION
PIN NAME DESCRIPTION
VIN
GND Ground
EN
V
Output Voltage
OUT
ADJ
BLOCK DIAGRAM
Power Input Voltage. Supply voltage can range from 2.3V to 6V. Bypass with a 1µF capacitor to
GND.
Active-Low Shutdown Input. A logic low at EN reduces supply current to 0.01µA. Connect EN to
V
for normal operation.
IN
Voltage-adjust Input. Connect an external resistive voltage-divider from V
output voltage between 0.8V and 5V.
to ADJ to set the
OUT
V
IN
ON
Thermal
Sensor
EN
SHDN
Current Limit
OFF
V
OUT
V
REF
-
AMP
+
ADJ
GND
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