ADP1712:  300 mA, Low Dropout CMOS Linear Regulator

The ADP1712/ADP1713/ADP1714, available in a tiny, 5-lead TSOT package, are low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 300 mA of output current. The low 170 mV ...More

ADP1712:  300 mA, Low Dropout CMOS Linear Regulator

Product Description

The ADP1712/ADP1713/ADP1714, available in a tiny, 5-lead TSOT package, are low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 300 mA of output current. The low 170 mV dropout voltage at a 300 mA load improves efficiency and allows operation over a wide input voltage range. Using a novel scaling architecture, ground current is a very low 75 μA when driving a 100 μA load, making the ADP1712/ ADP1713/ADP1714 ideal for battery-operated portable equipment.

The ADP1712/ADP1713/ADP1714 are available in 16 fixed output voltage options. The ADP1712 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 ADP1712 fixed version allows an external capacitor to be connected to program the soft-start time. The ADP1713 allows a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1714 includes a tracking feature, which allows the output to follow an external voltage rail or reference.

The ADP1712/ADP1713/ADP1714 are optimized for stable operation with small 2.2 μF ceramic output capacitors, allowing good transient performance while occupying minimal board space. An enable pin controls the output voltage on all devices, and an undervoltage lockout circuit disables the regulator if IN drops below a minimum threshold. The parts also have short circuit protection and thermal overload protection, which prevent damage to the devices in adverse conditions.

Applications

  • Mobile phones
  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • Post dc-dc regulation

    • Data Sheet, Rev. 0, 1/07

    Features

    • Maximum output current: 300 mA
    • Input voltage range: 2.5 V to 5.5 V
    • Light load efficient IGND = 75 μA with
      100 μA load
    • Low shutdown current: <1 μA
    • Very low dropout voltage: 170 mV @
      300 mA load
    • Initial accuracy: ±1%
    • Accuracy over line, load, and temperature: ±2%
    • 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1712)
    • Adjustable output voltage option: 0.8 V to 5.0 V (ADP1712 Adjustable)
    • 16 fixed output voltage options with reference bypass: 0.75 V to 3.3 V (ADP1713)
    • 16 fixed output voltage options with tracking: 0.75 V to 3.3 V (ADP1714)
    • Low output noise: 40 μV rms

    Diagrams

    ADP1712 Diagram
    Typical Application Circuit Diagram for ADP1712

    Specifications

    Vout Preset Voltages (V) 16 Options 0.75V to 3.3V
    Vin Range (Vmin to Vmax) 2.5 to 5.5
    Iout (max) 300mA
    Supply Current (max) 420µA
    V-dropout@Rated Iout (mV) 200mV
    Tot Accuracy (±%) 2%
    Package TSOT-5
    # of Outputs 1
    Line Regulation n/a
    Load Regulation n/a
    Shutdown Yes
    Operating Temp Range -40 to +125

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    Part# Vout Preset Vout Adj Range Iout (max) Vin Range (Vmin to Vmax) Supply Current (max) Vdropout @ Rated Iout Vout Setpoint Acc Vout Total Acc Shutdown Product Description Pos Supply Operating Temp Range Price* (1000-4999)
    ADP120 16 Presets From 1.2-3.3V n/a 100mA 2.3 to 5.5 35µA 60mV to 80mV 1% @ Iout = 10mA 2% @ 10 mA - Iout max Yes 100 mA, Low Quiescent Current, CMOS Linear Regulator +2.3 to +5.5 -40 to +125 $0.26
    ADP121 16 Presets From 1.2-3.3V n/a 150mA 2.5 to 5.5 40µA 90mV to 120mV 1% @ Iout = 10mA 2% @ 10 mA - Iout max Yes 150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT +2.3 to +5.5 -40 to +125 $0.27
    ADP130 31 Presets From 0.8-3.0V n/a 350mA 1.2 to 3.6 220µA 70mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 350 mA, Low VIN, Low Quiescent Current, CMOS Linear Regulator +1.2 to +3.6 -40 to +125 $0.33
    ADP1707 16 Presets From 0.75-3.3V, With Tracking n/a 1A 2.5 to 5.5 1.55mA 345mV to 365mV 1% @ Iout = 10mA 1.5% @ 0.1 mA - Iout max Yes 1 A, Low Dropout, CMOS Linear Regulator +2.5 to +5.5 -40 to +125 $1.12
    ADP1708 n/a 0.8V to 5.0V 1A 2.5 to 5.5 1.55mA 345mV to 365mV n/a 1.5% @ 0.1 mA - Iout max Yes 1 A, Low Dropout, CMOS Linear Regulator +2.5 to +5.5 -40 to +125 $1.09
    ADP1740 7 Presets--0.75 to 2.5V n/a 2A 1.6 to 3.6 1.8mA 350mV 1% @ Iout= 100mA 2% @ 1 mA - Iout max Yes 2 A, Low Dropout, CMOS Linear Regulator +1.6 to +3.6 -40 to +125 $1.20
    ADP1741 n/a 0.75V to 3.0V 2A 1.6 to 3.6 1.8mA 350mV 1% @ Iout= 100mA 2% @ 1 mA - Iout max Yes 2 A, Low Dropout, CMOS Linear Regulator with Adj. Output +1.6 to +3.6 -40 to +125 $1.20
    ADP1752 7 Presets--0.75 to 2.5V n/a 800mA 1.6 to 3.6 1.4mA 140mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 800mA Low-Vin LDO Regulator +1.6 to +3.6 -40 to +125 $0.90
    ADP1753 n/a 0.75V to 3.0V 800mA 1.6 to 3.6 1.4mA 140mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 800mA Low-Vin, Adjustable-Vout LDO Regulator +1.6 to +3.6 -40 to +125 $0.90
    ADP1754 7 Presets--0.75 to 2.5V n/a 1.2A 1.6 to 3.6 1.4mA 200mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 1.2A, Low-Vin, Low Dropout Linear Regulator +1.6 to +3.6 -40 to +125 $0.95
    ADP1755 n/a 0.75V to 3.0V 1.2A 1.6 to 3.6 1.4mA 200mV 1% @ Iout = 10mA 2% @ 10 mA - Iout max