UM365XX
300mA, Micropower, VLDO Linear Regulator
UM365XXS
SOT23-3
General Description
The UM365XXS series are VLDO (very low dropout) linear regulators designed for low power
portable applications. Typical output noise is only 100μV
RMS
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, excellent transient response, under voltage
lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, thermal overload
protection and output current limiting.
The UM365XXS series are available in a low profile SOT23-3 package.
Applications
Bluetooth/802.11 Cards
PDAs and Notebook Computers
Portable Instruments and
Battery-Powered Systems
Cellular Phones
Features
Low Dropout: 200mV(max) at 100mA
Maximum Input Voltage: 6.0V
Low Noise:100μV
RMS
(10Hz to 100kHz)
±2%Voltage Accuracy at 150mA
Fast Transient Response
Fixed Output Voltage:
5.0V/4.8V/4.7V/4.5V/4.3V/4.2V/4.0V/3.8V/
3.6V/3.5V/3.3V/3.0V/2.8V/2.7V/2.5V/1.8V/
1.5V/1.3V/1.2V
Output Current Limit
Stable with 1μF Output Capacitor
Thermal Overload Protection
Low Profile SOT23-3 Package
Pin Configurations
Top View
UM365XXS
M: Month Code
SOT23-3
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UM365XX
Pin Description
Pin Number
1
2
3
Symbol
IN
OUT
GND
Power Supply
Voltage Regulated Output
Ground
Function
Ordering Information
Part Number
UM36550S
UM36548S
UM36547S
UM36545S
UM36543S
UM36542S
UM36540S
UM36538S
UM36536S
UM36535S
UM36533S
UM36530S
UM36528S
UM36527S
UM36525S
UM36518S
UM36515S
UM36513S
UM36512S
Output Voltage
5.0V
4.8V
4.7V
4.5V
4.3V
4.2V
4.0V
3.8V
3.6V
3.5V
3.3V
3.0V
2.8V
2.7V
2.5V
1.8V
1.5V
1.3V
1.2V
Packaging Type
Marking Code
U4F
54Q
54P
54J
U4E
U4D
54R
54K
54L
53Z
53U
52R
52Q
52P
52N
52K
52J
52E
52D
Shipping Qty
SOT23-3
3000pcs/7Inch
Tape & Reel
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UM365XX
Absolute Maximum Ratings (Note 1)
Symbol
V
IN
V
OUT
T
J
T
STG
T
L
Voltage on OUT Pin
Output Short-Circuit Duration
Operating Junction Temperature (Notes 2, 3)
Storage Temperature Range
Lead Temperature for Soldering 10 seconds
Parameter
Supply Voltage on IN Pin
Value
-7.5 to +7.5
-0.3 to +7.5
Indefinite
-40 to +125
-65 to +150
+300
°C
°C
°C
Unit
V
V
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be
impaired.
Note 2: The UM365XXS is tested and specified under pulse load conditions such that T
J
≈T
A
. 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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UM365XX
Electrical Characteristics
V
+
=+5±10%,T
A
=-40℃ to +85℃.Typical conditions:Vcc=5V, T
A
=25℃.
Symbol
V
IN
V
OUT
I
Q
I
OUT
Parameter
Input Voltage Range
Output Voltage
Range
Operating Quiescent
Current
Output Current
Output Voltage
Accuracy
ΔV
DO
I
LIMT
t
Dropout Voltage
Output Current Limit
Startup Time
Response
Output Voltage TC
T
SHDN
ΔT
SHDN
Thermal-Shutdown
Temperature
Thermal-Shutdown
Hysteresis
Line Regulation
Load Regulation
Output Voltage Noise
Power Supply Ripple
Rejection
ESD Rating
V
OUT
+0.3V≤V
IN
≤5.5V
or
V
IN
>2.5V
I
OUT
=10mA
V
IN
=V
OUT
+1V or V
IN
>2.5V
1mA≤I
OUT
≤300mA
10Hz to 100KHz
C
IN
=1μF, I
OUT
=10mA
V
IN
=V
OUT
+1V
I
OUT
=100mA
F=100Hz
F=10KHz
60
dB
30
2
KV
1mA≤I
OUT
≤300mA,
T
A
=-40℃ to +85℃
I
OUT
=100mA
R
L
=1Ω
R
L
=68Ω, C
OUT
=1μF
330
Test Conditions
Min
2.5
1.2
I
OUT
=0mA
I
OUT
=300mA
300
-2.5
150
450
20
100
160
20
0.3
0.6
100
+2.5
200
700
70
90
Typ
Max
5.5
5.0
120
130
Unit
V
V
μA
mA
%
mV
mA
μs
ppm/
℃
℃
℃
%/V
%
μV
R
MS
PSRR
Human Body Mode
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UM365XX
Typical Performance Characteristics
Quiescent Current vs Input Voltage
58
56
54
3.34
Output Voltage vs Input Voltage
3.33
3.32
UM36533
UM36533
Quiescent Current(uA)
52
50
48
46
44
42
40
38
36
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Output Voltage(V)
3.31
3.30
3.29
3.28
3.27
3.26
3.25
3.24
3.5
4.0
4.5
5.0
5.5
6.0
6.5
Input voltage(V)
Input Voltage(V)
Dropout Voltage vs Output Current
650
600
550
3.34
Output Voltage vs Output Current
3.33
3.32
UM36533
UM36533
Dropout Voltage(mV)
500
450
400
350
300
250
200
150
100
100
125
150
175
200
225
250
275
300
Output Voltage(V)
3.31
3.30
3.29
3.28
3.27
3.26
3.25
0
50
100
150
200
V
IN
=4.3V
250
300
Output Current(mA)
Output Current(mA)
Output Voltage vs Temperature
3.50
3.48
3.46
3.44
3.42
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
20
30
40
50
60
70
80
o
Load Transient Response
V
OUT
=3.3V (100mV/div)
UM36533
Output Voltage(V)
I
OUT
=1mA to 150mA
V
IN
=4.3V,I
load
=10mA
90
100 110 120 130
V
IN
=4.3V , 50us/div
Temperature( C)
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