SGM2122 Datasheet, PDF (1/11 Pages) SG Micro Corp – Dual, Low Dropout, 250mA LDO Regulators

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
1
6
OUT2 OUT1
2
GND
5
IN
SGM2122
3 _EN2
EN1 ⁴
OUTPUT1
1μF
INPUT
1μF
ON
OFF
SG Micro Corp
www.sg-micro.com
REV. A. 4