SGM2007/A
GENERAL DESCRIPTION
The SGM2007/A series low-power, low-noise, low-dropout,
CMOS linear voltage regulators operate from a 2.5V to 5.5V
input and deliver up to 300mA. They are the perfect choice
for low voltage, low power applications. An ultra low
ground current（200
µA
at 300mA output ) makes these part
attractive for battery operated power systems. The
SGM2007/A series also offer ultra low dropout voltage
(300mV at 300mA output) to prolong battery life in
portable electronics. Systems requiring a quiet voltage
source, such as RF applications, will benefit from the
SGM2007/A 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 5-pin SOT23 package.
Low Power, Low Dropout,
300mA, RF - Linear Regulators
FEATURES
-
Low Output Noise: 30µV
RMS
typ(10Hz to 100KHz)
-
Ultra-Low Dropout Voltage:
-
-
-
-
-
-
-
300mV at 300mA output
Low 77µA No-Load Supply Current
Low 200µA Operating Supply Current
at 300mA Output
High PSRR (73dB at 1KHz)
Thermal-Overload Protection
Output Current Limit
10nA Logic-Controlled Shutdown
Available in Multiple Output Voltage Versions
Fixed Outputs of 1.8V, 2.5V, 2.7V, 2.8V, 2.85V,
2.9V, 3.0V, 3.3V and 3.6V
Adjustable Output from 1.5V to 5.0V
PIN CONFIGURATIONS
（TOP
VIEW）
SGM2007/A
IN
1
2
5
OUT
APPLICATIONS
Cellular Telephones
Cordless Telephones
PHS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Portable/Battery-Powered Equipment
GND
EN
3
SOT23-5
4
BP/FB
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B
ORDERING INFORMATION
MODEL
SGM2007-1.8
SGM2007-2.5
SGM2007-2.7
SGM2007-2.8
SGM2007-2.85
SGM2007-2.9
SGM2007-3.0
SGM2007-3.3
SGM2007-3.6
SGM2007A
V
OUT
(V)
1.8V
2.5V
2. 7V
2.8V
2.85V
2.9V
3.0V
3.3V
3.6V
adjustable
PIN-
PACKAGE
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
SGM2007-1.8XN5/TR
SGM2007-2.5XN5/TR
SGM2007-2. 7XN5/TR
SGM2007-2.8XN5/TR
SGM2007-2.85XN5/TR
SGM2007-2.9XN5/TR
SGM2007-3.0XN5/TR
SGM2007-3.3XN5/TR
SGM2007-3.6XN5/TR
SGM2007-XN5/TR
PACKAGE
MARKING
X718
X725
X727
X728
X72J
X729
X730
X733
X736
X7AA
PACKAGE
OPTION
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
SOT23-5
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
- 40°C to +125°C
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
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/FB to GND......................................- 0.3V to (V
IN
+ 0.3V)
Power Dissipation, P
D
@ T
A
= 25℃
SOT23-5 .....................................................................................0.4W
Package Thermal Resistance
SOT23-5,
θ
JA
....................................................................... 250℃/W
Operating Temperature Range...........................- 40°C to +125°C
Junction Temperature...........................................................+150°C
Storage Temperature.............................................- 65°C to +150°C
Lead Temperature (soldering, 10s).......................................260°C
ESD Susceptibility
HBM..........................................................................................4000V
MM..............................................................................................400V
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.
PIN DESCRIPTION
PIN
1
2
3
4
4
5
NAME
IN
GND
EN
BP
FB
OUT
FUNCTION
Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1µF capacitor to GND.
Ground.
Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for normal operation.
Reference-Noise Bypass(fixed voltage version only). Bypass with a low-leakage 0.01µF ceramic capacitor for
reduced noise at the output.
Adjustable voltage version only—this is used to set the output voltage of the device.
Regulator Output.
2
SGM2007/A
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
= 300mA, EN = 2V
I
OUT
= 1mA
I
OUT
= 300mA
SYMBOL
V
IN
(V
IN
= V
OUT (NOMINAL)
+ 0.5V
(1)
, T
A
= - 40°C to +125°C, unless otherwise noted. Typical values are at T
A
= + 25°C.)
CONDITIONS
I
OUT
=1mA to 300mA, T
A
= +25°C
V
OUT
+ 0.5V≤V
IN
≤
5.5V
MIN
2.5
-3
300
310
750
77
200
0.8
300
0.03
0.0008
30
78
73
2.0
0.4
T
A
= +25°C
T
A
= +125°C
T
A
= +25°C
T
A
= +125°C
T
A
= +25°C
0.01
0.01
0.01
0.01
30
1
1
380
0.15
0.002
145
TYP
MAX
5.5
+3
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 300mA, 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 +5.0V.)
Note 3:
Time needed for V
OUT
to reach 95% of final value.
３
SGM2007/A
TYPICAL OPERATION CIRCUIT
INPUT
2.5V TO 5.5V
IN
C
IN
1μF
ON
OFF
OUT
OUTPUT
C
OUT
1μF
INPUT
2.5V TO 5.5V
IN
OUT
OUTPUT
SGM
2007A
EN
GND
FB
R
1
C
IN
1μF
ON
OFF
SGM
2007
EN
GND
BP
C
OUT
1μF
R
2
C
BP
0.01μF
Adjustable Voltage Version
Fixed Voltage Version
Standard 1% Resistor Values for Common
Output Voltages of
Adjustable Voltage Version
V
OUT
(V)
1.5
1.8
2.5
2.7
2.8
2.85
2.9
3.0
3.3
3.6
R
1
(kΩ)
13
28
63.4
56
78.7
80.6
75
88.7
95.3
130
R
2
(kΩ)
61.9
61.9
61.9
47
61.9
61.9
56
61.9
57.6
68
Note: V
OUT
= (
R
1
+
R
2
)/
R
2
× 1.233
４
SGM2007/A
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
100
200
Load Current(mA)
300
0
100
200
Load Current(mA)
300
Ground Pin Current vs.Load Current
200
190
180
170
160
150
140
130
120
110
100
90
80
70
0
Ground Pin Current vs.Input Voltage
200
V
OUT
= 2.8V
Ground Pin Current(µA)
160
120
80
No Load
40
0
I
load
= 50mA
Ground Pin Current(µA)
V
OUT
= 3.3V
V
OUT
= 2.8V
100
200
Load Current(mA)
300
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
５
SGM2007/A
嵌入式系统
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