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ADP1720:  50 mA, High Voltage, Micropower Linear Regulator

The ADP1720 is a high voltage, micropower, low dropout linear regulator. Operating over a very wide input voltage range of 4 V to 28 V, the ADP1720 can provide up to 50 mA of output current. With just 28 μA of quiescent supply current and a micropower shutdown mode, this device is ideal for applications that require low quiescent current.

The ADP1720 is available in fixed output ...More

ADP1720:  50 mA, High Voltage, Micropower Linear Regulator

Product Description

The ADP1720 is a high voltage, micropower, low dropout linear regulator. Operating over a very wide input voltage range of 4 V to 28 V, the ADP1720 can provide up to 50 mA of output current. With just 28 μA of quiescent supply current and a micropower shutdown mode, this device is ideal for applications that require low quiescent current.

The ADP1720 is available in fixed output voltages of 3.3 V and 5.0 V. An adjustable version is also available, which allows the output to be set anywhere between 1.225 V and 5.0 V. An enable function that allows external circuits to turn on and turn off the ADP1720 output is available. For automatic startup, the enable (EN) pin can be connected directly to the input rail.

The ADP1720 is optimized for stable operation with small 1 μF ceramic output capacitors, allowing for good transient performance while occupying minimal board space.

The ADP1720 operates from –40°C to +125°C and uses current limit protection and thermal overload protection circuits to prevent damage to the device in adverse conditions.

Available in a small thermally enhanced MSOP package, the ADP1720 provides a compact solution with low thermal resistance.

Applications

  • DC-to-DC post regulation
  • PCMCIA regulation
  • Keep-alive power in portable equipment
  • Industrial applications

    • Data Sheet, Rev. A, 7/07

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    • Wide input voltage range: 4 V to 28 V
    • Maximum output current: 50 mA
    • Low light load current:
      28 μA at 0 μA load
      35 μA at 100 μA load
    • Low shutdown current: 0.7 μA
    • Low dropout voltage: 275 mV @ 50 mA load
    • Initial accuracy: ±0.5%
    • Accuracy over line, load, and temperature: ±2%
    • Stable with small 1μF ceramic output capacitor
    • Fixed 3.3 V and 5.0 V output voltage options
    • Adjustable output voltage option: 1.225 V to 5.0 V
    • Current limit and thermal overload protection
    • Logic controlled enable
    • Vout Preset: 2 Presets 3.3V and 5.0V
    • Vout Adj Range: 1.225V to 5.0V
    • Vin Range (Vmin to Vmax): 4.0 to 28
    • Iout (max): 50mA
    • Supply Current : 2.115mA
    • Vdropout @ Rated Iout: 55mV to 480mV
    • Vout Total Acc: 2% @ 0.1 mA - Iout max
    • Package: MSOP-8
    • # of Outputs: 1
    • Line Regulation: n/a
    • Load Regulation: n/a
    • Shutdown: Yes
    • Operating Temp Range: -40 to +125

    Functional Block Diagram for ADP1720

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    类似产品

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    Part# Vout Preset Vout Adj Range Iout (max) Vin Range (Vmin to Vmax) Supply Current 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
    ADP170 31 Presets From 0.8-3.0V n/a 300mA 1.6 to 3.6 260µA 66mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 300 mA, Low Quiescent Current, Low Dropout, CMOS Linear Regulator +1.6 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
    ADP171 n/a 0.8V to 3.0V 300mA 1.6 to 3.6 260µA 66mV 1% @ Iout = 10mA 2% @ 1 mA - Iout max Yes 300 mA, Low Quiescent Current, Low Dropout, CMOS Linear Regulator +1.6 to +3.6 -40 to +125 $0.33
    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
    ADP220 Dual Presets--0.8 to 3.3V n/a 200mA 2.5 to 5.5 220µA 150mV 1% @ Iout = 10mA 2% @ 0.1 mA - Iout max Yes Dual, 200 mA, Low Noise, High PSRR, Low-dropout Linear Voltage Regulator +2.5 to +5.5 -40 to +125 $0.58
    ADP221 Dual Presets--0.8 to 3.3V n/a 200mA 2.5 to 5.5 220µA 150mV 1% @ Iout = 10mA 2% @ 0.1 mA - Iout max Yes Dual, 200 mA, Low Noise, High PSRR, Low-dropout Linear Voltage Regulator w/active pull-down +2.5 to +5.5 -40 to +125 $0.58
    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 150 mA, Low Dropout, CMOS Linear Regulator +2.5 to +5.5 -40 to +125 $0.41
    ADP1711 16 Presets From 0.75-3.3V n/a 150mA 2.5 to 5.5 1.3mA 150mV to 180mV 1% @ Iout = 1mA 2% @ 0.1 mA - Iout max Yes 150 mA, Low Dropout, CMOS, Linear Regulator +2.5 to +5.5 -40 to +125 $0.45
    ADP1712 16 Presets From 0.75-3.3V 0.8V to 5.0V 300mA 2.5 to 5.5 420µA 200mV to 400mV 1% @ Iout = 10mA 2% @ 0.1 mA - Iout max Yes 300 mA, Low Dropout, CMOS, Linear Regulator w/ fixed or adj output voltage +2.5 to +5.5 -40 to +125 $0.47
    ADP1713 16 Presets From 0.75-3.3V n/a 300mA 2.5 to 5.5 420µA 170mV to 200mV 1% @ Iout = 10mA 2% @ 0.1 mA - Iout max Yes 300 mA, Low Dropout, CMOS, Low Noise Linear Regulator +2.5 to +5.5 -40 to +125 $0.49
    ADP1714 16 Presets From 0.75-3.3V n/a 300mA 2.5 to 5.5 420µA 170mV to 200mV 1% @ Iout = 10mA 2% @ 0.1 mA - Iout max Yes 300 mA, Low Dropout, CMOS Linear Regulator w/ External-Voltage Tracking Capability +2.5 to +5.5 -40 to +125 $0.51
    ADP1716 16 Presets From 0.75-3.3V n/a 500mA 2.5 to 5.5 650µA 50mV to 500mV 1% @ Iout = 10mA 2% @ 10 mA - Iout max Yes 500mA Low-Dropout Linear Regulator with Tracking +2.5 to +5.5 -40 to +125 $0.97
    ADP1715 16 Presets From 0.75-3.3V 0.8V to 5.0V 500mA 2.5 to 5.5 650µA 50mV to 500mV 1% @ Iout = 10mA 2% @ 10 mA - Iout max Yes 500 mA Low-Dropout CMOS Linear Regulator with Soft Start +2.5 to +5.5 -40 to +125 $0.83
    ADP3367 1 Preset 5.0V 1.3V to 16V 300mA 2.5 to 16.5 14mA 300mV to 500mV n/a 2% @ 0.1 mA - Iout max Yes Fixed +5V or Adj 1.3V-16V, Low-Dropout Linear Voltage Regulator +2.5 to +16.5 -40 to +85 $1.81
    ADP3334 n/a 1.4V to 10V 500mA 2.6 to 11 10mA 200mV to 400mV n/a 1.8% @ 0.1 mA - Iout max Yes Adjustable 1.5V-10V Output, High Accuracy, Low Iq, 500 mA anyCAP­® Low Dropout Regulator +2.6 to +11 -40 to +85 $0.87
    ADP3331 n/a 1.5V to 11.75V 200mA 2.6 to 12 4mA 140mV to 230mV - 1.4% @ 0.1 mA - Iout max Yes Adjustable 1.5V-10V Output, Ultralow Iq, 200 mA, anyCAP® Low Dropout Regulator in SOT-23 +2.6 to +12 -40 to +85 $0.62
    ADP3333 8 Presets From 1.5-5V n/a 300mA 2.6 to 12 5.5mA 140mV to 230mV n/a 1.8% @ 0.1 mA - Iout max Yes High Accuracy Ultralow Iq, 300 mA, anyCAP® Low Dropout Regulator +2.6 to +12 -25 to +85 $0.83
    ADP3335 10 Presets From 1.8-5V n/a 500mA 2.6 to 12 10mA 200mV to 400mV n/a 1.8% @ 0.1 mA - Iout max Yes High Accuracy, Ultralow Quiescent Current, 500mA, anyCAP® Low Dropout Regulator +2.6 to +12 -40 to +85 $0.91
    ADP3336 n/a 1.5V to 10V 500mA 2.6 to 12 10mA 200mV to 400mV n/a 1.8% @ 0.1 mA - Iout max Yes Small, Adjustable 1.5V-10V Output, 500 mA anyCAP® Low Dropout Regulator +2.6 to +12 -40 to +85 $0.92
    ADP3338 7 Presets From 1.5-5V n/a 1A 2.7 to 8 30mA 190mV to 400mV n/a 1.4% @ 0.1 mA - Iout max No High Accuracy, Ultralow Quiescent Current, 1A, anyCAP™ Low Dropout Regulator +2.7 to +8 -40 to +85 $1.10
    ADP3339 7 Presets From 1.5-5V n/a 1.5A 2.8 to 6 40mA 230mV to 480mV n/a 1.5% @ 0.1 mA - Iout max No High-Accuracy, Ultralow Iq, 1.5 A, anyCAP® Low Dropout Regulator +2.8 to +6 -40 to +85 $1.18
    ADP3309 7 Presets From 2.7-3.6V n/a 100mA 2.8 to 12 2mA 120mV to 240mV - 2.2% @ 0.1 mA - Iout max Yes anyCAP®, 100 mA, Low Dropout Linear Regulator +2.8 to +12 -20 to +85 $0.54
    ADP3330 7 Presets from 2.5-5V n/a 200mA 2.9 to 12 4mA 140mV to 230mV n/a 1.4% @ 0.1 mA - Iout max Yes High Accuracy, Ultralow I(Q), 200 mA, anyCAP® Low Dropout Regulator in SOT23 +2.9 to +12 -40 to +85 $0.62
    ADP3301 5 Presets From 2.7-5V n/a 100mA 3 to12 0.3mA 100mV to 200mV - 1.4% @ 0.1 mA - Iout max Yes High Accuracy, anyCAP®, 100 mA, Low Dropout Linear Regulator +3 to +12 -20 to +85 $1.06
    ADP3303 5 Presets From 2.7-5V n/a 200mA 3.2 to 12 0.4mA 180mV to 400mV - 1.4% @ 0.1 mA - Iout max Yes High Accuracy, anyCAP®, 200 mA, Low Dropout Linear Regulator +3.2 to +12 -20 to +85 $1.11
    ADP667 1 Preset 5.0V 1.3V to 16V 250mA 3.5 to 16.5 20mA 150mVto 250mV n/a 4% Yes Fixed +5V or Adj 1.3V-16V Output, Low-Dropout Linear Voltage Regulator +3.5 to +16.5 -40 to +85 $1.76
    ADP1720 2 Presets 3.3V and 5.0V 1.225V to 5.0V 50mA 4.0 to 28 2.115mA 55mV to 480mV 0.5% @ Iout =0.1 mA 2% @ 0.1 mA - Iout max Yes 50 mA, High-Voltage, Micro-power LDO Linear Regulator in MSOP +4 to +28 -40 to +125 $0.50
    ADP1706 16 Presets From 0.75-3.3V, Soft Start 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 +5.5 to +2.5 -40 to +125 $1.09
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