SGM2031
Low Power, Low Dropout,
RF Linear Regulators
GENERAL DESCRIPTION
The SGM2031 series low-power, low-dropout, CMOS
linear voltage regulators operate from a 2.5V to 5.5V
input voltage in an ultra small package. They are the
perfect choice for low voltage, low power applications.
A low ground current makes this part attractive for
battery operated power systems. The SGM2031 series
also offer ultra low dropout voltage to prolong battery
life in portable electronics. Systems requiring a quiet
voltage source, such as RF applications, will benefit
from the SGM2031 series’ low output noise and high
PSRR.
Other
features
include
a
10nA
logic-controlled
shutdown mode, foldback current limit and thermal
shut-down protection.
The SGM2031 is available in Green UTDFN-1×1-4L
package. It operates over an ambient temperature
range of -40℃ to +85℃.
FEATURES
Low Dropout Voltage
Thermal-Overload Protection
Output Current Limit
High PSRR (72dB at 1kHz)
10nA Logic-Controlled Shutdown
Available in Multiple Output Voltage Versions
Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.6V, 2.8V,
2.85V, 3.0V and 3.3V
-40℃ to +85℃ Operating Temperature Range
Available in Green UTDFN-1×1-4L Package
APPLICATIONS
Cellular Telephones
Cordless Telephones
PHS Telephones
PCMCIA Cards
Modems
MP3 Player
TYPICAL APPLICATION
INPUT
2.5V to 5.5V
C
IN
1μF
ON
OFF
3
4
Hand-Held Instruments
Palmtop Computers
OUTPUT
C
OUT
1μF
IN
OUT
1
Electronic Planners
Portable/Battery-Powered Equipment
SGM2031
EN
GND
2
SG Micro Corp
www.sg-micro.com
MAY 2016 – REV. B. 2
SGM2031
PACKAGE/ORDERING INFORMATION
MODEL
SGM2031-1.2
SGM2031-1.5
SGM2031-1.8
SGM2031-2.5
SGM2031-2.6
SGM2031-2.8
SGM2031-2.85
SGM2031-3.0
SGM2031-3.3
SPECIFIED
PACKAGE
V
OUT
TEMPERATURE
(V) DESCRIPTION
RANGE
1.2
1.5
1.8
2.5
2.6
2.8
2.85
3.0
3.3
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
UTDFN-1×1-4L
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
ORDERING
NUMBER
Low Power, Low Dropout,
RF Linear Regulators
PACKAGE
MARKING
64
9F
51
A0
B8
52
B9
53
57
PACKING
OPTION
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
Tape and Reel, 10000
SGM2031-1.2YUDH4G/TR
SGM2031-1.5YUDH4G/TR
SGM2031-1.8YUDH4G/TR
SGM2031-2.5YUDH4G/TR
SGM2031-2.6YUDH4G/TR
SGM2031-2.8YUDH4G/TR
SGM2031-2.85YUDH4G/TR
SGM2031-3.0YUDH4G/TR
SGM2031-3.3YUDH4G/TR
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
NOTE: Order number is defined as the follow:
ORDER NUMBER
SGM2031 - X X X G / TR
Tape and Reel
Green Product
Package Type
UDH4
UTDFN-1×1-4L
Operating Temperature Range
Y
-40℃ to +85℃
Output Voltages
1.2
1.5
1.8
2.5
2.6
2.8
2.85
3.0
3.3
1.2V
1.5V
1.8V
2.5V
2.6V
2.8V
2.85V
3.0V
3.3V
SG Micro Corp
www.sg-micro.com
MAY 2016
2
SGM2031
IN to GND ............................................................ -0.3V to 6V
Output Short-Circuit Duration....................................... Infinite
EN to GND ........................................................... -0.3V to V
IN
OUT to GND .......................................... -0.3V to (V
IN
+ 0.3V)
Power Dissipation, P
D
@ T
A
= +25℃
UTDFN-1×1-4L .......................................................... 400mW
Package Thermal Resistance
UTDFN-1×1-4L, θ
JA
................................................. 280℃/W
Junction Temperature .................................................+150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
HBM ............................................................................. 4000V
MM ................................................................................. 400V
Low Power, Low Dropout,
RF Linear Regulators
Stresses beyond those listed may cause permanent damage
to the device. Functional operation of the device at these or
any other conditions beyond those indicated in the
operational section of the specification is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
ABSOLUTE MAXIMUM RATINGS
OVERSTRESS CAUTION
ESD SENSITIVITY CAUTION
Input Voltage Range ...........................................2.5V to 5.5V
Operating Temperature Range ...................... -40℃ to +85℃
RECOMMENDED OPERATING CONDITIONS
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure.
Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause
the device not to meet its published specifications.
SG Micro Corp reserves the right to make any change in
circuit design, specification or other related things if
necessary without notice at any time.
DISCLAIMER
SG Micro Corp
www.sg-micro.com
MAY 2016
3
SGM2031
PIN CONFIGURATION
(TOP VIEW)
Low Power, Low Dropout,
RF Linear Regulators
IN
4
EN
3
NC
1
2
OUT
GND
UTDFN-1×1-4L
PIN DESCRIPTION
PIN
1
2
3
4
Exposed
Pad
NAME
OUT
GND
EN
IN
NC
Regulator Output.
Ground.
Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for
normal operation.
Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1μF
capacitor to GND.
No Connection.
FUNCTION
SG Micro Corp
www.sg-micro.com
MAY 2016
4
SGM2031
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT (NOMINAL)
+ 0.5V , Full = -40℃ to +85℃, unless otherwise noted.)
PARAMETER
Input Voltage
Output Voltage Accuracy
(1)
Maximum Output Current
(1), (5)
Current Limit
(1)
Ground Pin Current
Dropout Voltage
(2)
Line Regulation
(1)
Load Regulation
Output Voltage Noise
Power Supply Rejection Ratio
SHUTDOWN
(3)
Low Power, Low Dropout,
RF Linear Regulators
(1)
SYMBOL
V
IN
I
OUT
= 0.1mA
I
LIM
I
Q
CONDITIONS
TEMP
+25℃
+25℃
+25℃
+25℃
MIN
2.5
-3
250
260
TYP
MAX
5.5
+3
UNITS
V
%
mA
mA
No Load, EN = 2V
I
OUT
= 1mA
I
OUT
= 250mA
V
IN
= 2.5V or (V
OUT
+ 0.5V) to 5.5V,
I
OUT
= 1mA
I
OUT
= 0.1mA to 250mA, C
OUT
= 1µF, V
OUT
>
2V
I
OUT
= 0.1mA to 250mA, C
OUT
= 1µF, V
OUT
≤
2V
f = 10Hz to 100kHz, C
OUT
= 10µF
I
OUT
= 50mA, C
OUT
= 1μF,
V
IN
= V
OUT
+ 1V
f = 217Hz
f = 1kHz
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
Full
Full
+25℃
Full
+25℃
Full
+25℃
1.5
95
0.9
230
0.02
0.002
0.004
140
72
72
200
400
0.05
0.005
0.008
µA
mV
%/V
%/mA
µV
RMS
dB
dB
ΔV
LNR
ΔV
LDR
e
n
PSRR
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
Shutdown Exit Delay
(4)
THERMAL PROTECTION
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
V
IH
V
IL
I
B(SHDN)
I
Q(SHDN)
V
IN
= 2.5V to 5.5V, V
EN
= -0.3V to V
IN
EN = 0V and EN = 5.5V
EN = 0.4V
C
OUT
= 1μF, No Load
0.3
0.01
0.01
0.01
0.01
10
1
1
V
μA
μA
μs
T
SHDN
ΔT
SHDN
150
15
℃
℃
NOTES:
1. V
IN
= V
OUT (NOMINAL)
+ 0.5V or 2.5V, whichever is greater.
2. The dropout voltage is defined as V
IN
- V
OUT
, when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+ 0.5V.
(Only applicable for V
OUT
= +2.5V to +5.0V.)
3. V
EN
= -0.3V to V
IN
4. Time needed for V
OUT
to reach 90% of final value.
5. Maximum output current is affected by PCB layout, size of metal trace, the thermal conduction path between metal layers,
operating temperature and the other environment factor of system.
SG Micro Corp
www.sg-micro.com
MAY 2016
5
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