LDO REGULATOR. LR9103 Datasheet

LR9103 REGULATOR. Datasheet pdf. Equivalent


UTC LR9103
UNISONIC TECHNOLOGIES CO., LTD
LR9103
LOW NOISE 150mA LDO
REGULATOR
CMOS IC
DESCRIPTION
The UTC LR9103 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 LR9103, 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 LR9103 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 LR9103.
The UTC LR9103 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
* Ultra Supply Current:
42µA (Typ.)
* Standby Mode:
0.1µA (Typ.)
* Very Low Dropout Voltage:
0.13V (Typ.) @ IOUT =150mA, VOUT =2.85V
* Ripple Rejection:
65dB (Typ.) @ f=1kHz,VOUT=2.85V
* Temperature-Drift Coefficient
±50ppm/°C (Typ.)
of Output Voltage:
* Well Line Regulation:
0.05%/V (Typ.)
*Output Voltage Accuracy:
±1.0%
* Internal Fold Back Protection Circuit: 50mA (Typ.) (Current at short mode)
*CIN=COUT=1.0µF or more (Ceramic capacitors) are recommended to be used with this IC
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LR9103L-xx-AE5-R
LR9103G-xx-AE5-R
LR9103L-xx-AF5-R
LR9103G-xx-AF5-R
LR9103L-xx-AL4-R
LR9103G-xx-AL4-R
LR9103L-xx-K04-1010-R
LR9103G-xx-K04-1010-R
Note: xx: Output Voltage, refer to Marking Information.
Package
SOT-23-5
SOT-25
SOT-343
DFN1010-4
Packing
Tape Reel
Tape Reel
Tape Reel
Tape Reel
LR9103G-xx-AE5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Green Package
(1) R: Tape Reel
(2) AE5: SOT-23-5, AF5: SOT-25, AL4: SOT-343
K04-1010: DFN1010-4
(3) xx: refer to Marking Information
(4) G: Halogen Free and Lead Free, L: Lead Free
www.unisonic.com.tw
Copyright © 2019 Unisonic Technologies Co., Ltd
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LR9103 Datasheet
Recommendation LR9103 Datasheet
Part LR9103
Description LOW NOISE 150mA LDO REGULATOR
Feature LR9103; UNISONIC TECHNOLOGIES CO., LTD LR9103 LOW NOISE 150mA LDO REGULATOR CMOS IC  DESCRIPTION The UTC .
Manufacture UTC
Datasheet
Download LR9103 Datasheet




UTC LR9103
LR9103
MARKING
PACKAGE
VOLTAGE CODE
SOT-23-5
SOT-25
SOT-343
11: 1.1V
12: 1.2V
15: 1.5V
18: 1.8V
22: 2.2V
25: 2.5V
28: 2.8V
30: 3.0V
33: 3.3V
DFN1010-4
A: 1.1V
B: 1.2V
C: 1.5V
D: 1.8V
M: 2.2V
E: 2.5V
G: 2.8V
J: 3.0V
K: 3.3V
PIN CONFIGURATION
MARKING
CMOS IC
PIN DESCRIPTION
SOT-23-5
SOT-25
1
2
PIN NO.
SOT-343
4
2
31
4-
53
DFN1010-4
4
2
3
-
1
PIN NAME
DESCRIPTION
VIN
GND
CE
NC
VOUT
Input Pin
Ground Pin
Chip Enable Pin. Active when this Pin is
high.
No Connection
Output Pin
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-062.L



UTC LR9103
LR9103
BLOCK DIAGRAM
VIN
-
+
Reference
Voltage
Current Limit
CE
CMOS IC
VOUT
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R102-062.L





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