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    SGM2028

    500mA, Ultra Low Dropout, Low Power, RF Linear Regulator
     
    500mA, Ultra Low Dropout, Low Power, RF Linear Regulator
    GENERAL DESCRIPTION

    The SGM2028 is a low-power, low-noise, low-dropout, CMOS linear voltage regulator that operates from a 2.5V to 5.5V input voltage. It is the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The SGM2028 also offers ultra low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM2028’s 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.

    Other features include output current limit and thermal shutdown protection.

    The SGM2028 is available in a Green SOT-23-5 package. It operates over an ambient temperature range of -40 to +85.

    PIN CONFIGURATIONS

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    FEATURES
    • 500mA Guaranteed Output Current

    • Ultra Low Dropout Voltage

    • Low Output Noise

    • Thermal-Overload Protection

    • Output Current Limit

    • High PSRR (73dB at 1kHz)

    • 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

    • Available Fixed Output Voltages: 2.8V, 3.0V and 3.3V

    • Adjustable Output from 1.2V to 5.0V

    • -40 to +85 Operating Temperature Range

    • Available in a Green SOT-23-5 Package

    APPLICATIONS

    Cellular Telephones
    Cordless Telephones
    PCMCIA Cards
    Modems
    MP3 Player
    Hand-Held Instruments
    Palmtop Computers
    Electronic Planners
    Portable/Battery-Powered Equipment

    ORDERING INFORMATION
    Part NumberStatusPackagePinsPb-FreeTemp Range
    SGM2028-2.8YN5G/TRProductionSOT-23-55Y-40℃ to +85℃
    SGM2028-3.0YN5G/TRProductionSOT-23-55Y-40℃ to +85℃
    SGM2028-3.3YN5G/TRProductionSOT-23-55Y-40℃ to +85℃
    SGM2028-ADJYN5G/TRProductionSOT-23-55Y-40℃ to +85℃

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