SGM2005
GENERAL DESCRIPTION
The SGM2005 series low-power, low-noise, low-dropout,
CMOS linear voltage regulators operate from a 2.5V to 5.5V
input and deliver up to 150mA. They are the perfect choice
for low voltage, low power applications. An ultra low
ground current ( 150
µA
at 150mA output ) makes these
parts attractive for battery operated power systems. The
SGM2005 series also offer ultra low dropout voltage
(150mV at 150mA output) to prolong battery life in
portable electronics. Systems requiring a quiet voltage
source, such as RF applications, will benefit from the
SGM2005 series’ ultra low output noise (30µVRMS) and
high PSRR. An external noise bypass capacitor connected
to the device’s BP pin can further reduce the noise level.
The output voltage is preset to voltages in the range of 1.5V
to 5.0V. Other features include a 10nA logic-controlled
shutdown mode, foldback current limit and thermal shut-
down protection.
Devices come in 6-pin DFN-6 package.
Low Power, Low Dropout,
150mA, RF - Linear Regulators
FEATURES
-
Low Output Noise: 30µV
RMS
typ(10Hz to 100KHz)
-
Ultra-Low Dropout Voltage:
-
-
-
-
-
-
-
-
150mV at 150mA output
Low 77µA No-Load Supply Current
Low 150µA Operating Supply Current
at 150mA Output
High PSRR: 73dB at 1KHz
Thermal-Overload Protection
Output Current Limit
Preset Output Voltages (±2.7% Accuracy)
10nA Logic-Controlled Shutdown
Available in Multiple Output Voltage Versions
Fixed Outputs of 1.8V, 2.5V, 2.8V, 3.0V and 3.3V
PIN CONFIGURATIONS
（TOP
VIEW）
SGM2005
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
EN
GND
IN
1
2
3
DFN-6
6
5
4
BP
NC
OUT
NC = NO CONNECT
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B
ORDERING INFORMATION
MODEL
SGM2005-1.8
SGM2005-2.5
SGM2005-2.8
SGM2005-3.0
SGM2005-3.3
V
OUT
(V)
1.8V
2.5V
2.8V
3.0V
3.3V
PIN-
PACKAGE
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
SGM2005-1.8YD6/TR
SGM2005-2.5YD6/TR
SGM2005-2.8YD6/TR
SGM2005-3.0YD6/TR
SGM2005-3.3YD6/TR
PACKAGE
MARKING
Y518
Y525
Y528
Y530
Y533
PACKAGE
OPTION
DFN-6
DFN-6
DFN-6
DFN-6
DFN-6
- 40°C to +85°C
- 40°C to +85°C
- 40°C to +85°C
- 40°C to +85°C
- 40°C to +85°C
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
IN to GND.....................................................................- 0.3V to +6V
Output Short-Circuit Duration ...........................................Infinite
EN to GND...................................................................- 0.3V to +6V
OUT, BP to GND............................................- 0.3V to (V
IN
+ 0.3V)
Power Dissipation, PD @ T
A
= 25°C
DFN-6 ................................................................................... 300mW
Package Thermal Resistance
DFN-6,θ
JA
...........................................................................200℃/W
Operating Temperature Range..............................- 40°C to +85°C
Junction Temperature...........................................................+150°C
Storage Temperature.............................................- 65°C to +150°C
Lead Temperature (soldering, 10s).....................................+260°C
ESD Rating..................................................................................4 kV
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational
sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
TYPICAL OPERATION CIRCUIT
INPUT
2.5V TO 5.5V
IN
C
IN
1μF
ON
OFF
OUT
OUTPUT
SGM
2005
EN
GND
BP
C
OUT
1μF
C
BP
0.01μF
2
SGM2005
ELECTRICAL CHARACTERISTICS
PARAMETER
Input Voltage
Output Voltage Accuracy
(1)
Maximum Output Current
Current Limit
Ground Pin Current
Dropout Voltage
(2)
Line Regulation
(1)
Load Regulation
Output Voltage Noise
Power Supply Rejection Rate
SHUTDOWN
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
Shutdown Exit Delay
(3)
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T
SHDN
ΔT
SHDN
V
IH
V
IL
I
B(SHDN)
I
Q(SHDN)
V
IN
= 2.5V to 5.5V
EN = 0V and EN = 5.5V
EN = 0.4V
C
BP
= 0.01µF
C
OUT
= 1µF, No load
ΔV
LNR
ΔV
LDR
I
LIM
I
Q
No load, EN = 2V
I
OUT
= 150mA, EN = 2V
I
OUT
= 1mA
I
OUT
= 150mA
SYMBOL
V
IN
(V
IN
= V
OUT (NOMINAL)
+ 0.5V
(1)
, T
A
= - 40°C to +85°C, unless otherwise noted. Typical values are at T
A
= + 25°C.)
CONDITIONS
I
OUT
=1mA to150mA, T
A
= +25°C
V
OUT
+ 0.5V≤V
IN
≤
5.5V
MIN
2.5
-2.7
150
160
600
77
150
1
150
0.03
0.0008
30
78
73
2.0
0.4
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
0.01
0.01
0.01
0.01
30
1
1
190
0.15
0.002
145
TYP
MAX
5.5
+2.7
UNITS
V
%
mA
mA
µA
mV
%/V
%/mA
µV
RMS
dB
dB
V
IN
= 2.5V or (V
OUT
+ 0.5V) to 5.5V,
I
OUT
= 1mA
I
OUT
= 0.1mA to 150mA, C
OUT
= 1µF
f = 10Hz to 100KHz, C
BP
= 0.01µF,
C
OUT
= 10µF
C
BP
= 0.1µF, I
LOAD
= 50mA,
C
OUT
= 1µF
f = 100Hz,
f = 1KHz,
e
n
PSRR
V
µA
µA
µs
160
15
℃
℃
Specifications subject to change without notice.
Note 1:
V
IN
= V
OUT(NOMINAL)
+ 0.5V or 2.5V, whichever is greater.
Note 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 +3.3V.)
Note 3:
Time needed for V
OUT
to reach 95% of final value.
３
SGM2005
TYPICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT(NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 0.01µF, T
A
= +25℃, unless otherwise noted.
Output Voltage vs.Load Current
2.9
3.4
Output Voltage vs.Load Current
Output Voltage(V)
Output Voltage(V)
V
OUT
= 2.8V
2.85
3.35
2.8
3.3
2.75
3.25
V
OUT
= 3.3V
3.2
2.7
0
50
100
Load Current(mA)
150
0
50
100
Load Current(mA)
150
Ground Pin Current vs.Load Current
160
150
Ground Pin Current(µA)
Ground Pin Current(µA)
200
Ground Pin Current vs.Input Voltage
V
OUT
= 2.8V
160
I
load
= 50mA
140
130
120
110
100
90
80
70
60
0
50
100
Load Current(mA)
150
V
OUT
= 2.8V
V
OUT
= 3.3V
120
80
No Load
40
0
0
1
2
3
4
Input Voltage(V)
5
6
Ground Pin Current vs.Input Voltage
200
V
OUT
= 3.3V
Ground Pin Current(µA)
160
120
80
40
0
0
1
2
3
4
Input Voltage(V)
5
6
I
load
= 50mA
Output Voltage(V)
5
4
3
2
1
0
0
6
Output Voltage vs.Input Voltage
No Load
V
OUT
= 3.3V
No Load
V
OUT
= 2.8V
1
2
3
4
Input Voltage(V)
5
6
４
SGM2005
TYPICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT(NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 0.01µF, T
A
= +25℃, unless otherwise noted.
Output Voltage vs.Temperature
2.9
I
LOAD
= 150mA
Output Voltage(V)
Output Voltage vs.Temperature
3.4
I
LOAD
= 150mA
Output Voltage(V)
3.35
2.85
2.8
3.3
2.75
V
OUT
= 2.8V
2.7
-40 -25 -10
5
20 35 50
Temperature(℃)
65
80
95
3.25
V
OUT
= 3.3V
3.2
-40 -25 -10
5
20 35 50
Temperature(℃)
65
80
95
Ground Pin Current vs.Temperature
260
240
Ground Pin Current(μA)
220
Dropout Voltage vs.Load Current
220
200
180
Dropout Voltage(mV)
160
140
120
100
80
60
40
20
0
95
200
180
160
140
120
100
80
60
-40 -25 -10
5
20 35 50
Temperature(℃)
65
80
I
LOAD
= 150mA
V
OUT
= 2.8V
V
OUT
= 3.3V
T
A
= +85℃
T
A
= +25℃
T
A
= -40℃
V
OUT
= 2.8V
0
15
30
45 60 75 90 105 120 135 150
Load Current(mA)
Dropout Voltage vs.Load Current
180
160
Dropout Voltage(mV)
T
A
= +85℃
T
A
= +25℃
T
A
= -40℃
Current limit(mA)
1000
900
800
700
600
500
400
300
200
100
Current limit vs.Temperature
140
120
100
80
60
40
20
0
0
15
30
45
60 75 90 105 120 135 150
Load Current(mA)
V
OUT
= 3.3V
V
OUT
= 3.3V
V
OUT
= 2.8V
-50 -35 -20
-5 10 25 40
Temperature(℃)
55
70
85
５
SGM2005
ARM技术
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