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LDO51 Datasheet with Chat AI
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    • Part No.LDO51
    ManufacturerSTMICROELECTRONICS
    Size204 Kbytes
    Pages4 pages
    DescriptionIP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator
    Datasheet Summary with AI

    # LDO_51 Low Dropout Voltage Regulator

    ## Overview
    ️· Low power, high PSRR regulator.
    ️· Designed for portable devices powered by single-cell Li-ion or multi-cell NiMH/NiCd batteries.
    ️· Typical applications: Cellular phones, PDAs, smartphones, portable equipment, and analog/mixed-signal power supply.

    ## Key Features
    ️· Input Voltage Range: 3V - 5.5V
    ️· Output Voltage: 2.8V
    ️· Dropout Voltage: 50mV (at 80mA load) / 170mV (guaranteed)
    ️· Output Current: 0.1mA - 80mA
    ️· Quiescent Current: 30µA (at 100µA load) / 130µA (at 80mA load) / 100nA (power down mode)
    ️· PSRR: 60dB (f < 10kHz) / 50dB (f < 100kHz)
    ️· Output Noise Voltage: 1.5 µV/Hz (100Hz) / 550 nV/Hz (1kHz) / 300 µV/Hz (100kHz)
    ️· Short Circuit Current Limit: 180mA - 300mA

    ## Electrical Characteristics
    ️· Line Regulation: 3mV - 6mV
    ️· Load Regulation: 30mV - 45mV

    ️· Line Transient: 1mV
    ️· Load Transient: 1mV
    ️· Settling Time: 25µs
    ️· Recommended Output Capacitor: 1µF (ESR 0.02Ω - 0.6Ω)

    ## Application Notes
    ️· External capacitor (Cout = 1µF) with ESR between 0.02 to 0.6Ω is necessary for regulator stability.
    ️· Device is operational with a minimum input voltage of 2.7V, but characteristics are specified for 3V minimum.

    # LDO_51 Low Dropout Voltage Regulator

    ## Overview
    ️· Low power, high PSRR regulator.
    ️· Designed for portable devices powered by single-cell Li-ion or multi-cell NiMH/NiCd batteries.
    ️· Typical applications: Cellular phones, PDAs, smartphones, portable equipment, and analog/mixed-signal power supply.

    ## Key Features
    ️· Input Voltage Range: 3V - 5.5V
    ️· Output Voltage: 2.8V
    ️· Dropout Voltage: 50mV (at 80mA load) / 170mV (guaranteed)
    ️· Output Current: 0.1mA - 80mA
    ️· Quiescent Current: 30µA (at 100µA load) / 130µA (at 80mA load) / 100nA (power down mode)
    ️· PSRR: 60dB (f < 10kHz) / 50dB (f < 100kHz)
    ️· Output Noise Voltage: 1.5 µV/Hz (100Hz) / 550 nV/Hz (1kHz) / 300 µV/Hz (100kHz)
    ️· Short Circuit Current Limit: 180mA - 300mA

    ## Electrical Characteristics
    ️· Line Regulation: 3mV - 6mV
    ️· Load Regulation: 30mV - 45mV
    ️· Line Transient: 1mV
    ️· Load Transient: 1mV
    ️· Settling Time: 25µs
    ️· Recommended Output Capacitor: 1µF (ESR 0.02Ω - 0.6Ω)

    ## Application Notes
    ️· External capacitor (Cout = 1µF) with ESR between 0.02 to 0.6Ω is necessary for regulator stability.
    ️· Device is operational with a minimum input voltage of 2.7V, but characteristics are specified for 3V minimum.

    Part No.LDO51
    ManufacturerSTMICROELECTRONICS
    Size204 Kbytes
    Pages4 pages
    DescriptionIP Library: High PSRR, Low power, 80mA Low Dropout Voltage Regulator
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