UTC LR9101G-10-AE5-R, LR9101G-10-AL4-R, LR9101G-10-AL5-R, LR9101G-12-AE5-R, LR9101G-12-AL4-R Schematic [ru]
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UNISONIC TECHNOLOGIES CO., LTD
LR9101
CMOS IC
LOW NOISE 300mA LDO
REGULATOR
DESCRIPTION
The UTC LR9101 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 LR9101, 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 LR9101 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 LR9101.
The UTC LR9101 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
* Supply Current: 50µA (Typ.)
* Standby Mode: 0.1µA (Typ.)
* Ripple Rejection: 70dB (Typ.) @f=1kHz,V
*
Well Line Regulation: 0.02%/ V (Typ.)
* CIN=C
be used with this IC
=1µF or more (Ceramic capacitors) are recommended to
OUT
OUT
=2.5V
ORDERING INFORMATION
Ordering Number
Lead Free Halogen Free
LR9101L-xx-AE5-R LR9101G-xx-AE5-R SOT-23-5 Tape Reel
LR9101L-xx-AL4-R LR9101G-xx-AL4-R SOT-343 Tape Reel
LR9101L-xx-AL5-R LR9101G-xx-AL5-R SOT-353 Tape Reel
Note: xx: Output Voltage, refer to Marking Information.
Package Packing
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Copyright © 2014 Unisonic Technologies Co., Ltd QW-R502-A14.E
LR9101 CMOS IC
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOT-23-5
SOT-353
SOT-343
10: 1.0V
12: 1.2V
18: 1.8V
27: 2.7V
25: 2.5V
28: 2.8V
33: 3.3V
Voltage Code
43
1XX
PIN CONFIGURATION
SOT-23-5/SOT-353 SOT-343
PIN DESCRIPTION
PIN NO.
SOT-23-5
SOT-353
1 4 VIN Input Pin
2 2 GND Ground Pin
3 1 CE Chip Enable Pin. Active when this Pin is high.
4 - NC No Connection
5 3 V
SOT-343
PIN NAME DESCRIPTION
Output Pin
OUT
L: Lead Free
G: Halogen Free
21
BLOCK DIAGRAM
V
IN
V
OUT
-
+
Reference
Voltage
Current Limit
CE
GND
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LR9101 CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN 6 V
Input Voltage (CE Pin) VCE 6 V
Output Voltage V
Output Current I
SOT-23-5
Power Dissipation
SOT-343 250 mW
SOT-353 260 mW
Junction Temperature TJ +125 °С
Operating Temperature T
Storage Temperature T
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
-0.3~ VIN+0.3 V
OUT
400 mA
OUT
300 mW
PD
-40~+85 °С
OPR
-55~+125 °С
STG
(TA=25°С, VIN=Set V
OUT
+1V, I
=1mA, CI =CO=1µF, unless otherwise specified)
OUT
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
V
> 2.0V ×0.99 ×1.01 V
Output Voltage V
VIN = Set V
OUT
OUT
+1V,
OUT
V
≤ 2.0V ±20 mV
OUT
Input Voltage VIN 6 V
Load Regulation ∆V
Output Current I
Supply Current ISS I
Supply Current (Standby) I
Short Current Limit I
1mA≤I
OUT
300 mA
OUT
OUT
VCE=0V 0.1 2 µA
ST-BY
V
LIMIT
OUT
≤150mA 20 40 mV
OUT
=0A 50 µA
=0V 200 mA
CE Pull-down Current IPD 0.3 µA
CE Input Voltage
High V
Low V
Output Noise eN BW=10Hz to 100kHz, I
Ripple Rejection RR
Dropout Voltage VD I
Line Regulation
1.5 V
CEH
1.1 V
CEL
=30mA 30 µVrms
OUT
RMS
OUT
=30mA
70 dB
=2.0V, VIN=3V)
<1.2V 0.60
OUT
<1.5V 0.40
OUT
<1.7V 0.24
OUT
<2.0V 0.21
OUT
<2.5V 0.19
OUT
<2.8V 0.17
OUT
≤5.0V 0.15
OUT
0.02 0.10 %/V
∆V
∆V
f=1kHz, Ripple 0.2V
V
=Set V
IN
(In case that V
OUT
1.2V≤V
OUT
V
IN
SET
+1V, I
OUT
OUT
1.0V≤V
1.2V≤V
1.5V≤V
=150mA
1.7V≤V
2.0V≤V
2.5V≤V
2.8V≤V
≤4.0V,
OUT
+0.5V≤VIN≤5V
V
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LR9101 CMOS IC
TEST CIRCUIT
C1
1.0µF
V
IN
UTC
LR9101
CE
Basic Test Circuit
V
OUT
GND
C2
1.0µF
V
IN
V
OUTV
I
OUT
A
C1
I
SS
1.0µF
Test Circuit for Supply Current
UTC
LR9101
V
OUT
C2
1.0µF
GNDCE
TYPICAL APPLICATION CIRCUIT
IN
C1
1.0μF
V
CE
IN
UTC
LR9101
GND
V
OUT
OUT
C2
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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