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PDF SGM2122 Data sheet ( Hoja de datos )
| Número de pieza | SGM2122 | |
| Descripción | 250mA LDO Regulator | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
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SGM2122
Dual, Low Dropout,
250mA LDO Regulators
GENERAL DESCRIPTION
The SGM2122 is a dual, low-power, low-dropout, CMOS
linear voltage regulator. It operates from a 2.5V to 5.5V
input and delivers up to 250mA at each channel.
The SGM2122 is the perfect choice for low voltage, low
power. The ground current is 190μA (both LDO’s enabled
and active) that makes this part attractive for battery
operated power systems. The SGM2122 also offers low
dropout voltage (250mV at 250mA output) to prolong
battery life in portable electronics.
FEATURES
Highly Accurate: ±2%
Ultra-Low Dropout Voltage:
250mV at 250mA Output
190µA No-Load Supply Current
Quick Auto-Discharge in Shutdown Status
Thermal-Overload Protection
Output Current Limit
10nA Logic-Controlled Shutdown
Operating Temperature Range: -40℃ to +85℃
Small Package
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 shutdown protection.
PIN CONFIGURATION (TOP VIEW)
SGM2122
OUT2 1
6 OUT1
GND 2
5 IN
The SGM2122 is available in Green SOT-23-6 package.
It operates over an ambient temperature range of -40℃
to +85℃.
APPLICATIONS
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
MP3 Player
Hand-Held Instruments
Palmtop Computers
Wireless LAN
Portable/Battery-Powered Equipment
EN2 3
4 EN1
SOT-23-6
NOTE: The location of pin 1 on the SGM2122 is determined by
orienting the package marking as shown.
TYPICAL APPLICATION CIRCUIT
OUTPUT2
1μF
ON
OFF
16
OUT2 OUT1
2
GND
5
IN
SGM2122
3 EN2
EN1 4
OUTPUT1
1μF
INPUT
1μF
OFF
ON
SG Micro Corp
www.sg-micro.com
REV. A. 4
1 page  
SGM2122
Dual, Low Dropout,
250mA LDO Regulators
TYPICAL OPERATING CHARACTERISTICS
VIN = VOUT (NOMINAL) + 0.5V or 2.5V (whichever is greater), CIN = 1μF, COUT = 1μF, TA = +25℃, unless otherwise noted.
Output Voltage Accuracy vs. Temperature
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-40
-15 10 35 60
Temperature (℃)
85
Output Voltage vs. Input Voltage
5
No Load
4 VOUT = 2.8V
3
2
1 VOUT = 1.8V SGM2122-E
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
300
250
200
150
100
50
0
0
Dropout Voltage vs. Load Current
TA = +85℃
TA = +25℃
TA = -40℃
VOUT = 2.8V
50 100 150 200
Load Current (mA)
250
Ground Pin Current vs. Temperature
240
SGM2122-E
225
210
195
180
165
150
-40
No Load
-15 10 35 60
Temperature (℃)
85
Ground Pin Current vs. Input Voltage
240
SGM2122-E
200
160
120
80
40
No Load
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
Ground Pin Current vs. Load Current
400
350
300
250
200
150
100
0
Both Output Loaded
50 100 150 200
Load Current (mA)
250
SG Micro Corp
www.sg-micro.com
5
5 Page 
SGM2122
CARTON BOX DIMENSIONS
Dual, Low Dropout,
250mA LDO Regulators
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Reel Type
Length
(mm)
Width
(mm)
7″ (Option)
368 227
7″ 442 410
Height
(mm)
224
224
Pizza/Carton
8
18
SG Micro Corp
www.sg-micro.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SGM2122.PDF ] | |
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