ADP1741:  2 A, Low Dropout, CMOS Linear Regulator

The ADP1740/ADP1741 are CMOS, low dropout linear regulators that operate from 1.6 V to 3.6 V and provide up to 2 A of output current. These Low VIN / VOUT LDOs are ideal for ...More

ADP1741:  2 A, Low Dropout, CMOS Linear Regulator

Product Description

The ADP1740/ADP1741 are CMOS, low dropout linear regulators that operate from 1.6 V to 3.6 V and provide up to 2 A of output current. These Low VIN / VOUT LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5V down to 1.8V I/O rails, and powering core voltages down to 0.75V. Using an advanced proprietary architecture, they provide high power supply rejection, low noise, and achieve excellent line and load transient response with just a small 4.7 µF ceramic output capacitor.

The ADP1740 is available in 7 fixed output voltage options. The ADP1741 is available in an adjustable version, which allows output voltages that range from 0.75 V to 3.0 V via an external divider. The ADP1740/ADP1741 allows an external soft start capacitor to be connected to program the start-up.

A power good output allows power system monitors to digitally check the health of the output power rail voltage. The ADP1740/ADP1741 are available in a 16-lead, 4 mm × 4 mm LFCSP, making them not only very compact solutions, but also providing excellent thermal performance for applications requiring up to 2 A of output current in a small, low profile footprint.

Applications

  • Notebook computers
  • Memory components
  • Telecommunications equipment
  • Network equipment
  • DSP/FPGA/microprocessor supplies
  • Instrumentation equipment/data acquisition systems

    • Features

    • Maximum output current: 2 A
    • Input voltage range: 1.6 V to 3.6 V
    • Low shutdown current: <1 μA
    • Low dropout voltage: 200 mV @ 2 A load
    • Initial accuracy: ±1%
    • Accuracy over line, load, and temperature: ±2.5%
    • 7 fixed output voltage options with soft start (ADP1740): 0.75 V to 2.5 V
    • Adjustable output voltage options with soft start (ADP1741): 0.75 V to 3.0 V
    • Stable with small 4.7 μF ceramic output capacitor
    • Excellent load/line transient response
    • Current limit and thermal overload protection
    • Power Good indicator
    • Logic-controlled enable

    技术指标

    Vout Preset Voltages (V) Adj. 0.75V to 3V
    Vin Range (Vmin to Vmax) 1.6 to 3.6
    Iout (max) 2A
    Supply Current (max) 1.8mA
    V-dropout@Rated Iout (mV) 350mV
    Tot Accuracy (±%) 2.5%
    Package LFCSP-16
    # of Outputs 1
    Line Regulation 1mV/V
    Shutdown Yes
    Operating Temp Range -40 to +125

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    订阅新产品资料
    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 Yes 1.2A, Low-Vin, Adjustable-Vout Low Dropout Linear Regulator +1.6 to +3.6 -40 to +125 $0.95
    ADP1710 16 Presets From 0.75-3.3V 0.8V to 5.0V 150mA 2.5 to 5.5 1.3mA 150mV to 180mV 1% @ Iout = 1mA 2% @ 0.1 mA - Iout max Yes