GENERAL DEscriptION
The SGM2028 is a low dropout voltage, low power and low noise RF linear regulator. It is capable of supplying 500mA output current with typical dropout voltage of only 270mV. The operating input voltage range is from 2.5V to 5.5V.
Other features include logic-controlled shutdown mode, short-circuit current limit and thermal shutdown protection.
The SGM2028 is available in a Green SOT-23-5 package. It operates over an operating temperature range of -40℃ to +85℃.
FEATURES
Operating Input Voltage Range: 2.5V to 5.5V
Fixed Output Voltages: 2.8V, 3.0V, 3.3V
Adjustable Output Voltage Range: 1.2V to 5.0V
500mA Guaranteed Output Current
Output Voltage Accuracy: ±3% at +25℃
High PSRR: 73dB (TYP) at 1kHz
Ultra-Low Dropout Voltage: 270mV (TYP) at 500mA
Low Output Noise: 30μVRMS (TYP)
Thermal Shutdown Protection
Output Current Limit
SGM2028-2.8, SGM2028-3.0 and SGM2028-ADJ: 110kΩ Pull Down Resistor at EN Pin
SGM2028-3.3: No Pull Down Resistor at EN Pin
-40℃ to +85℃ Operating Temperature Range
Available in a Green SOT-23-5 Package
APPLICATIONS
Modems
MP3 Players
Cellular Telephones
PCMCIA Cards
Palmtop Computers
Portable Electronics