Datasheet UM375xx Rev06

UM375xx
300mA, Micropower, VLDO Linear Regulator
UM375xxS SOT23-5
UM375xxP SOT353
General Description
The UM375xx series are VLDO (very low dropout) linear regulators designed for low power
portable applications. Typical output noise is only 170μVRMS(UM37512) and maximum dropout is
just 200mV at the load current of 100mA.The internal P-channel MOSFET pass transistor requires
no base current, allowing the device to draw only 90μA during normal operation at the maximum
load current of 300mA.
Other features include high output voltage accuracy, under voltage lockout, stability with ultra low
ESR ceramic capacitors as small as 1μF, thermal overload protection and output current limiting.
The UM375xx series are available in a low profile SOT23-5 and SOT353 package.
Applications
Features







Bluetooth/802.11 Cards
PDAs and Notebook Computers
Portable Instruments and
Battery-Powered Systems
Cellular Phones


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
Pin Configurations
Input Voltage Range: 2.0V to 6.0V
Very Low Dropout: 200mV(Max) at 100mA
Low Noise:170μVRMS (UM37512,10Hz to
100kHz)
±2% Voltage Accuracy at 150mA
Fixed Output Voltage:
1.2V to 5.0V with 100mV Interval
Output Current Limit
Stable with 1μF Output Capacitor
Thermal Overload Protection
Low Profile SOT23-5 and SOT353 Package
Top View
5XX
M: Month Code
UM375xxS
SOT23-5
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UM375xx
VXX
M: Month Code
UM375xxP
SOT353
Pin Description
Pin
Number
Symbol
1
IN
2
GND
3
____________
SHDN
4
NC
5
OUT
Function
Power Supply
Ground
Shutdown Input, Active Low
Not Connected
Voltage Regulated Output
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UM375xx
Ordering Information
Part Number
UM37512S
UM37513S
UM37514S
UM37515S
UM37516S
UM37517S
UM37518S
UM37519S
UM37520S
UM37521S
UM37522S
UM37523S
UM37524S
UM37525S
UM37526S
UM37527S
UM37528S
UM37529S
UM37530S
UM37531S
UM37532S
UM37533S
UM37534S
UM37535S
UM37536S
UM37537S
UM37538S
UM37539S
UM37540S
UM37541S
UM37542S
UM37543S
UM37544S
UM37545S
UM37546S
UM37547S
UM37548S
UM37549S
UM37550S
Output Voltage
1.2V
1.3V
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
5.0V
Packaging Type
SOT23-5
Marking Code
5ED
5EE
5EH
5EJ
5EL
5EM
5EK
5EF
5EC
5ES
5ET
5EY
5EU
5EN
5EZ
5EP
5EQ
5EB
5ER
5EA
5DD
5DE
5DB
5DF
5DH
5DA
5DL
5DT
5DM
5DY
5DJ
5DN
5DV
5DP
5DZ
5DQ
5DR
5D9
5DS
Shipping Qty
3000pcs/7Inch
Tape & Reel
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UM375xx
Ordering Information (Continued)
Part Number
UM37512P
UM37513P
UM37514P
UM37515P
UM37516P
UM37517P
UM37518P
UM37519P
UM37520P
UM37521P
UM37522P
UM37523P
UM37524P
UM37525P
UM37526P
UM37527P
UM37528P
UM37529P
UM37530P
UM37531P
UM37532P
UM37533P
UM37534P
UM37535P
UM37536P
UM37537P
UM37538P
UM37539P
UM37540P
UM37541P
UM37542P
UM37543P
UM37544P
UM37545P
UM37546P
UM37547P
UM37548P
UM37549P
UM37550P
Output Voltage
1.2V
1.3V
1.4V
1.5V
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
5.0V
Packaging Type
SOT353
Marking Code
VL2
VL3
VL4
VL5
VL6
VL7
VL8
VL9
VLA
VM1
VM2
VM3
VM4
VM5
VM6
VM7
VM8
VM9
VMA
VJ1
VJ2
VJ3
VJ4
VJ5
VJ6
VJ7
VJ8
VJ9
VJA
VT1
VT2
VT3
VT4
VT5
VT6
VT7
VT8
VT9
VTA
Shipping Qty
3000pcs/7Inch
Tape & Reel
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UM375xx
Absolute Maximum Ratings (Note 1)
Symbol
VIN
VOUT
TJ
TSTG
Parameter
Value
Unit
Supply Voltage on IN Pin
-0.3 to +7.5
V
Voltage on OUT Pin
-0.3 to +7.5
V
Operating Junction Temperature (Notes 2, 3)
-40 to +125
°C
Storage Temperature Range
-65 to +150
°C
TL
Lead Temperature for Soldering 10 seconds
+300
°C
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be
impaired.
Note 2: The UM375xx is tested and specified under pulse load conditions such that TJ≈TA. The
device is guaranteed to meet performance specifications from 0℃ to 70℃. Specifications
over the – 40℃ to 125℃ operating junction temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: This IC includes overtemperature protection that is intended to protect the device during
momentary overload conditions. Junction temperature will exceed 125℃ when
overtemperature protection is active. Continuous operation above the specified maximum
operating junction temperature may impair device reliability.
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UM375xx
Electrical Characteristics
VCC=VOUT+1V(VOUT≥1.5V) or VCC=2.5V(VOUT≤1.5V),TA= -40℃ to +85℃.
Symbol
Parameter
Test Conditions
Min Typ Max
VIN
Input Voltage Range
2.0
6
Output Voltage
VOUT
1.2
5.0
Range
IOUT=0mA
50
120
Operating Quiescent
IQ
Current
IOUT=300mA
90
130
Unit
V
V
μA
_____________
__________
ISHDN
IOUT
ΔVDO
ILIMT
t
SHDN Input
Current
Output Current
_____________
1
SHDN =VIN or GND
300
Output Voltage
Accuracy
1mA≤IOUT≤300mA,
TA= -40℃ to +85℃
Dropout Voltage
Output Current Limit
Startup Time
Response
IOUT=100mA
mA
-2.5
330
RL=68Ω, COUT=1μF
μA
150
450
+2.5
%
200
700
mV
mA
μs
40
_____________
VIL
SHDN Input Low
Voltage
0.4
V
_____________
VIH
TSHDN
ΔTSHDN
SHDN Input High
Voltage
Output Voltage TC
Thermal-Shutdown
Temperature
Thermal-Shutdown
Hysteresis
Line Regulation
(VOUT>4.0V)
Line Regulation
(VOUT≤4.0V)
Load Regulation
(VOUT>4.0V)
Load Regulation
(VOUT≤4.0V)
Output Voltage Noise
PSRR
Power Supply Ripple
Rejection
(VOUT>4.0V)
Power Supply Ripple
Rejection
(VOUT≤4.0V)
ESD Rating
0.6Vcc
V
100
ppm/℃
160
℃
35
℃
VOUT+0.3V≤VIN≤6.0V or
VIN>2.5V
IOUT=10mA
0.5
%/V
0.3
1.2
VIN=VOUT+1V or VIN>2.5V
1mA≤IOUT≤300mA
10Hz to 100kHz
CIN=1μF,
IOUT=10mA
VIN=VOUT+1V
or VIN>2.5V
IOUT=100mA
%
0.6
UM37512
170
UM37533
250
UM37550
295
f=100Hz
40
f=10kHz
30
f=100Hz
60
f=10kHz
30
Human Body Mode
2
μVRMS
dB
kV
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UM375xx
Typical Performance Characteristics
Quiescent Current vs Input Voltage
Output Voltage vs Input Voltage
UM37518, Iout=0mA
UM37518,Iout=100mA
Output Voltage
Voltage
Output
VoltagevsvsInput
Input
Voltage
Output Voltage vs Output Current
3.320
Output Voltage(V)
3.315
UM37518,VIN=2V
3.310
3.305
3.300
3.295
3.290
UM37533,Iload=10mA
3.285
3.280
3.5
4
4.5
5
5.5
6
Input Voltage(V)
OutpoutVoltage
Voltage vs
Output
vs Output
OutputCurrent
Current
Dropout Voltage
vs vs
Output
Current
Dropout
Voltage
Output
Current
3.34
350
3.33
300
Dropout Voltage(mV)
Output Voltage(V)
3.32
3.31
3.30
3.29
3.28
UM37533, VIN=4.3V
3.27
250
200
150
100
UM37533
50
3.26
0
3.25
0
50
100
150
200
Output Current(mA)
250
300
0
25
50
75
100 125 150 175 200 225 250 275 300
Output Current(mA)
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UM375xx
Typical Performance Characteristics (Continued)
Outpout
Voltage vs
Output Voltage
vsTemperature
Temperature
PSRR
PSRR vs
vs Frequency
Frequency
100
3.330
80
3.310
PSRR(dB)
Outpout Voltage(V)
3.320
3.300
3.290
UM37533, VIN=4.3V
3.280
60
40
20
UM37533, Iload=100mA
3.270
-40 -20
0
25
35
45
55 65
75
85
95 105 115 125
Temperature(℃)
Line Transient Response
Vin=4.0V to 5.0V
VOUT=3.3V (50mV/div)
Iload=150mA, 50us/div
0
10
100
1000
10000
100000
Frequency(Hz)
Load Transient Response
IOUT=10mA to 150mA
VOUT=3.3V(100mV/div)
VIN=4.3V, 100us/div
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UM375xx
Pin Function
IN (Pin 1): Power for UM375xx and Load Power is supplied to the devices through the IN pin.
The IN pin should be locally bypassed to ground if the UM375xx series are more than a few
inches away from another source of bulk capacitance. In general, the output impedance of a
battery rises with frequency, so it is usually advisable to include an input bypass capacitor in
battery-powered circuits. A capacitor in the range of 0.1μF to 1μF is usually sufficient.
GND (Pin 2): Ground and Heat Sink. Solder to a ground plane or large pad to maximize heat
dissipation.
_____________
SHDN (Pin 3): Shutdown, Active Low. This pin is used to put the UM375xx into shutdown. The
_____________
SHDN pin cannot be left floating and must be tied to the input pin if not used.
NC (Pin 4): Not Connected.
OUT (Pin 5): Voltage Regulated Output. The OUT pin supplies power to the load. A minimum
output capacitor of 1μF is required to ensure stability. Larger output capacitors may be required
for applications with large transient loads to limit peak voltage transients.
Typical Application Circuit
VIN
IN
VOUT
OUT
UM375xx
1μF
1μF
SHDN
GND
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UM375xx
Package Information
UM375xxS: SOT23-5
Outline Drawing
D
b
θ
Symbol
5
E
E1
4
2
3
L
1
e
c
0.2
e1
A1
A
End View
A2
Top View
Side View
A
A1
A2
b
c
D
E
E1
e
e1
L
θ
DIMENSIONS
MILLIMETERS
Min
Max
1.050
1.250
0.000
0.100
1.050
1.150
0.300
0.500
0.100
0.200
2.820
3.020
1.500
1.700
2.650
2.950
0.950REF
1.800
2.000
0.300
0.600
0°
8°
INCHES
Min
Max
0.041 0.049
0.000 0.004
0.041 0.045
0.012 0.020
0.004 0.008
0.111 0.119
0.059 0.067
0.104 0.116
0.037REF
0.071 0.079
0.012 0.024
0°
8°
Land Pattern
2.40
0.90
0.60
0.95
NOTES:
1. Compound dimension: 2.92×1.60;
2. Unit: mm;
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
0.95
5XX
M
Tape and Reel Orientation
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UM375xx
UM375xxP: SOT353
Outline Drawing
Symbol
D
θ
L
e1
4
2
3
L1
1
E
E1
5
b
20
c
e
Top View
A
A1
A2
End View
Side View
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
DIMENSIONS
MILLIMETERS
Min
Max
0.900
1.100
0.000
0.100
0.877
1.000
0.150
0.350
0.080
0.220
1.800
2.200
1.150
1.350
2.000
2.450
0.650REF
1.200
1.400
0.488REF
0.260
0.460
0°
8°
INCHES
Min
Max
0.035
0.043
0.000
0.004
0.035
0.039
0.006
0.014
0.003
0.009
0.071
0.087
0.045
0.053
0.079
0.096
0.026REF
0.047
0.055
0.020REF
0.010
0.018
0°
8°
Land Pattern
1.94
1.30
0.80
NOTES:
1. Compound dimension: 2.00×1.25;
2. Unit: mm;
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
0.35
VXX
M
Tape and Reel Orientation
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UM375xx
IMPORTANT NOTICE
The information in this document has been carefully reviewed and is believed to be
accurate. Nonetheless, this document is subject to change without notice. Union assumes
no responsibility for any inaccuracies that may be contained in this document, and makes
no commitment to update or to keep current the contained information, or to notify a
person or organization of any update. Union reserves the right to make changes, at any
time, in order to improve reliability, function or design and to attempt to supply the best
product possible.
Union Semiconductor, Inc
Add: Unit 606, No.570 Shengxia Road, Shanghai 201210
Tel: 021-51093966
Fax: 021-51026018
Website: www.union-ic.com
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