SGM2022
GENERAL DESCRIPTION
The SGM2022 is a dual, low-power, low-dropout, CMOS
linear voltage regulators. It operates from a 2.5V to 4.5V
input and delivers up to 150mA at each channel.
The SGM2022 is the perfect choice for low voltage, low
power and RF applications. A low ground current 160
µA
(
both LDO’s enabled and active) makes this part attractive
for battery operated power systems. The SGM2022 also
offers low dropout voltage (135mV at 150mA output) to
prolong battery life in portable electronics.
Separate enable pins control each individual LDO output.
The EN function allows the output of each regulator to be
turned off independently, resulting in greatly reduced
power consumption. Other features include a 10nA
logic-controlled shutdown mode, foldback current limit
and thermal shut- down protection.
Devices come in 6-pin SOT23 package.
Dual, Low Dropout, 150mA
RF - Linear Regulators
FEATURES
-
Highly Accurate: 2%
-
Ultra-Low Dropout Voltage:
-
-
-
-
-
-
-
135mV at 150mA output
Low 160µA No-Load Supply Current
Low 300µA Operating Supply Current
at 150mA Output
Thermal-Overload Protection
Output Current Limit
10nA Logic-Controlled Shutdown
Operating Temperature Range : -40℃ to 85℃
Small Package
PIN CONFIGURATIONS
（TOP
VIEW）
SGM2022
OUT2
GND
EN2
1
2
6
5
OUT1
IN
3
SOT23-6
4
EN1
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Wireless LAN
Portable/Battery-Powered Equipment
TYPICAL OPERATION CIRCUIT
OUTPUT2
OUT2
1μF
OUT1
OUTPUT1
1μF
INPUT
GND
IN
1μF
SGM2022
ON
OFF
EN2
EN1
ON
OFF
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. A
ORDERING INFORMATION
ORDERING
NUMBER
SGM2022-AYN6/TR
SGM2022-CYN6/TR
SGM2022-DYN6/TR
SGM2022-EYN6/TR
SGM2022-GYN6/TR
SGM2022-HYN6/TR
SGM2022-IYN6/TR
SGM2022-KYN6/TR
V
OUT1
2.8V
2.8V
2.8V
2.8V
2.5V
3.3V
3.3V
3.0V
V
OUT2
2.8V
3.0V
2.5V
1.8V
1.8V
2.5V
1.8V
1.8V
PIN-
PACKAGE
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
2022A
2022C
2022D
2022E
2022G
2022H
2022I
2022K
PACKAGE
OPTION
SOT23-6
SOT23-6
SOT23-6
SOT23-6
SOT23-6
SOT23-6
SOT23-6
SOT23-6
- 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
- 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
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
IN to GND.....................................................................- 0.3V to +5V
Output Short-Circuit Duration ...........................................Infinite
EN to GND...................................................................- 0.3V to +5V
OUT to GND...................................................- 0.3V to (V
IN
+ 0.3V)
Power Dissipation, P
D
@ T
A
= 25℃
SOT23-6 ....................................................................................0.24W
Package Thermal Resistance
SOT23-6,
θ
JA
....................................................................... 250
℃
/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 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
5
6
NAME
OUT2
GND
EN2(1)
EN1(1)
IN
OUT1
Channel 2 Output Voltage
Common Ground.
On/Off Control 2，A logic low reduces the supply current to 10nA.
On/Off Control 1，A logic low reduces the supply current to 10nA.
Supply Input.
Channel 2 Output Voltage
FUNCTION
Note(1): If EN1 and EN2 are both low, both regulators and the reference turn off.
2
SGM2022
ELECTRICAL CHARACTERISTICS
(V
IN
= V
OUT (NOMINAL)
+ 0.5V or 2.5V (whichever is greater), T
A
= - 40°C to +85°C, Typical values are at T
A
= + 25°C, for each LDO unless
otherwise specified.)
PARAMETER
Input Voltage
Output Voltage Accuracy
Maximum Output Current
Current Limit
Ground Pin Current
Dropout Voltage (Note1)
Line Regulation
Load Regulation
Power Supply Rejection Rate
SHUTDOWN
EN Input Threshold
EN Input Bias Current
Shutdown Supply Current
Shutdown Exit Delay(Note2)
THERMAL PROTECTION
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
T
SHDN
ΔT
SHDN
160
15
℃
℃
V
IH
V
IL
I
B(SHDN)
I
Q(SHDN)
V
IN
= 2.5V to 4.5V
EN = 0V and EN = 4.5V
EN1 = EN2 = 0.4V
C
OUT
= 1µF, No load
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
2.0
0.4
0.02
0.02
0.01
0.01
20
5
5
V
µA
µA
µs
ΔV
LNR
ΔV
LDR
PSRR
I
LIM
I
Q
EN= 2V, both LDOs
I
OUT
= 1mA
I
OUT
= 150mA
V
IN
= 2.5V or (V
OUT
+ 0.5V) to 4.5V,
I
OUT
= 1mA
I
OUT
= 0.1mA to 150mA, C
OUT
= 1µF
I
LOAD
= 50mA, C
OUT
= 1µF
f = 100Hz,
No load
I
OUT
= 150mA
SYMBOL
V
IN
I
OUT
= 0.1mA, V
OUT
≥2.5V,
T
A
= +25°C
150
160
500
160
300
0.9
135
0.02
0.004
74
200
0.08
0.01
CONDITIONS
MIN
2.5
TYP
MAX
4.5
2
UNITS
V
%
mA
mA
µA
mV
%/V
%/mA
dB
Specifications subject to change without notice.
Note 1:
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 2:
Time needed for V
OUT
to reach 95% of final value.
３
SGM2022
TYPICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT (NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25℃, unless otherwise noted.
Ground Pin Current vs.Load Current
400
370
Ground Pin Current(µA)
310
280
250
220
190
160
130
100
0
50
100
Load Current(mA)
150
Both outputs loaded
0
0
0.5
1
1.5 2 2.5 3
Input Voltage(V)
3.5
4
4.5
Ground Pin Current(µA)
240
SGM2022-C
200
160
120
80
40
No Load
Ground Pin Current vs.Input Voltage
340
Ground Pin Current vs.Temperature
240
SGM2022-C
Ground Pin Current(μA)
210
180
150
120
90
60
-40 -25 -10
5
20 35 50
Temperature(℃)
65
80
95
No Load
Output Voltage vs.Input Voltage
5
No Load
4
Output Voltage(V)
3
2
1
SGM2022-C
0
0
0.5
1
1.5 2 2.5 3
Input Voltage(V)
3.5
4
4.5
V
OUT
= 2.8V
V
OUT
= 3.0V
Dropout Voltage vs.Load Current
200
Output Voltage Accuracy(%)
Output Voltage Accuracy vs.Temperature
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
180
Dropout Voltage(mV)
160
140
120
100
80
60
40
20
0
0
20
40
60
80
100
Load Current(mA)
120
140
V
OUT
= 2.8V
T
A
= +85℃
T
A
= +25℃
T
A
= -40℃
-40 -25 -10
5
20 35 50
Temperature(℃)
65
80
95
４
SGM2022
TYPICAL OPERATING CHARACTERISTICS
V
IN
= V
OUT (NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25℃, unless otherwise noted.
Power-Supply Rejection Ratio
vs.Frequency
90
80
70
60
PSRR(dB)
50
40
30
20
10
0
0.01
0.1
C
OUT
= 1μF
1
10
Frequency(kHz)
100
1000
C
OUT
= 10μF
100
CH to CH Isolation(dB)
Channel to Channel Isolation vs.
Frequency
I
LOAD
= 50mA
V
IN
= V
OUT
+1V
SGM2022-C
90
80
70
60
50
40
30
20
0.01
I
LOAD
= 50mA
V
IN
= V
OUT
+1V
SGM2022-C
0.1
1
10
Frequency(kHz)
100
1000
５
SGM2022
电子工程世界
