ADP121-AUJZ33R7

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1. DESCRIPTION

The ADP121-AUJZ33R7 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range. The low 30 μA of quiescent current at full load makes the ADP121-AUJZ33R7 ideal for battery-operated portable equipment. The ADP121-AUJZ33R7 is available in output voltages ranging from 1.2 V to 3.3 V. The parts are optimized for stable operation with small 1 μF ceramic output capacitors. The ADP121-AUJZ33R7 delivers good transient performance with minimal board area. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP121-AUJZ33R7 is available in a tiny 5-lead TSOT and 4-ball 0.4 mm pitch halide-free WLCSP packages and utilizes the smallest footprint solution to meet a variety of portable applications. 

2. FEATURES

    1. Input voltage range: 2.3 V to 5.5 V

    2. Output voltage range: 1.2 V to 3.3 V

    3. Output current: 150 mA

    4. Low quiescent current

        - IGND = 11 μA with 0 μA load

        - IGND = 30 μA with 150 mA load

    5. Low shutdown current: <1 μA

    6. Low dropout voltage 90 mV @ 150 mA load

    7. High PSRR

        - 70 dB @ 1 kHz at VOUT = 1.2 V

        - 70 dB @ 10 kHz at VOUT = 1.2 V

    8. Low noise: 40 μV rms at VOUT = 1.2 V

    9. No noise bypass capacitor required

  10. Output voltage accuracy: ±1%

  11. Stable with a small 1 μF ceramic output capacitor

  12. Current limit and thermal overload protection

  13. Logic controlled enable

  14. 5-lead TSOT package

  15. 4-ball 0.4 mm pitch WLCSP

3. APPLICATIONS

    1. Mobile phones

    2. Digital cameras and audio devices

    3. Portable and battery-powered equipment

    4. Post dc-to-dc regulation

    5. Post regulation