ADP1710AUJZ-2.5-R7 Integrated Circuits (ICs)

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1. DESCRIPTION

The ADP1710AUJZ-2.5-R7/ADP1711 are low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 150 mA of output current. Utilizing a novel scaling architecture, ground current drawn is a very low 40 μA, when driving a 100 μA load, making the ADP1710AUJZ-2.5-R7/ADP1711 ideal for batteryoperated portable equipment. The ADP1710AUJZ-2.5-R7 and the ADP1711 are each available in sixteen fixed output voltage options. The ADP1710AUJZ-2.5-R7 is also available in an adjustable version, which allows output voltages that range from 0.8 V to 5 V via an external divider. The ADP1711 allows for a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1710AUJZ-2.5-R7/ADP1711 are optimized for stable operation with small 1 μF ceramic output capacitors, allowing for good transient performance while occupying minimal board space. An enable pin controls the output voltage on both devices. There is also an under-voltage lockout circuit on both devices, which disables the regulator if IN drops below a minimum threshold. An internal soft start gives a typical start-up time of 80 μs. Short-circuit protection and thermal overload protection circuits prevent damage to the devices in adverse conditions. Both the ADP1710AUJZ-2.5-R7 and the ADP1711 are available in tiny 5­lead TSOT packages, for the smallest footprint solution to all your power needs. 

2. FEATURES

    1. Maximum output current: 150 mA

    2. Input voltage range: 2.5 V to 5.5 V

    3. Light load efficient

        - IGND = 35 μA with zero load

        - IGND = 40 μA with 100 μA load

    4. Low shutdown current: <1 μA

    5. Low dropout voltage: 150 mV @ 150 mA load

    6. Initial accuracy: ±1%

    7. Accuracy over line, load, and temperature: ±2%

    8. Stable with small 1μF ceramic output capacitor

    9. 16 fixed output voltage options: 0.75 V to 3.3 V (ADP1710)

  10. Adjustable output voltage option: 0.8 V to 5.0 V (ADP1710 Adjustable)

  11. 16 fixed output voltage options with reference bypass: 0.75 V to 3.3 V (ADP1711)

  12. High PSRR: 69 dB @ 1 kHz

  13. Low noise: 40 μVRMS

  14. Excellent load/line transient response

  15. Current limit and thermal overload protection

  16. Logic controlled enable

  17. 5-lead TSOT package

3. APPLICATIONS

    1. Mobile phones

    2. Digital camera and audio devices

    3. Portable and battery-powered equipment

    4. Post dc-dc regulation