ADP1707 1 A, Low Dropout, CMOS Linear Regulator with Tracking

The ADP1706/ADP1707/ADP1708 are CMOS, low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 1 A of output current. Using an advanced proprietary architecture, they provide high power supply rejection and achieve excellent line and load transient response with a small 4.7 μF ceramic output capacitor.

The ADP1706/ADP1707 are available in 16 fixed output volt-age options. The ADP1708 is available in an adjustable version, which allows output voltages that range from 0.8 V to 5.0 V via an external divider. The ADP1706 allows an external soft start capacitor to be connected to program the start-up time; the ADP1707 and ADP1708 contain internal soft start capacitors that give a typical start-up time of 100 μs. The ADP1707 includes a tracking feature that allows the output to follow an external voltage rail or reference.

The ADP1706/ADP1707/ADP1708 are available in an 8-lead, exposed paddle SOIC package and an 8-lead, 3 mm × 3 mm exposed paddle LFCSP, making them not only very compact solutions but also providing excellent thermal performance for applications requiring up to 1 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 and Benefits
  • Maximum output current: 1 A
  • Input voltage range: 2.5 V to 5.5 V
  • Low shutdown current: <1 μA
  • Low dropout voltage: 345 mV @ 1 A load
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature: ±2.5%
  • 16 fixed output voltage options with soft start: 0.75 V to 3.3 V (ADP1706)
  • 16 fixed output voltage options with tracking 0.75 V to 3.3 V (ADP1707)
  • Adjustable output voltage option: 0.8 V to 5.0 V (ADP1708)
  • Stable with small 4.7 μF ceramic output capacitor
  • Excellent load/line transient response
  • Current limit and thermal overload protection
Power Management
Design Tools
Data Sheets
Documentnote
ADP1706/ADP1707/ADP1708: 1 A, Low Dropout, CMOS Linear Regulator Data Sheet (Rev. A)PDF 518.09 K
Application Notes
Documentnote
AN-1072: How to Successfully Apply Low Dropout RegulatorsPDF 105 kB
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADP1707ACPZ-1.3-R7 Last Time Buy8 ld LFCSP (3x3mm 1.74x1.45mm EP)REEL 1500-40 to 125C01.12Y
ADP1707ACPZ-1.8-R7 Production8 ld LFCSP (3x3mm)REEL 1500-40 to 125C01.12Y
ADP1707ACPZ-2.5-R7 Last Time Buy8 ld LFCSP (3x3mm)REEL 1500-40 to 125C01.12Y
ADP1707ACPZ-3.0-R7 Last Time Buy8 ld LFCSP (3x3mm)REEL 1500-40 to 125C01.12Y
ADP1707ACPZ-3.3-R7 Production8 ld LFCSP (3x3mm)REEL 1500-40 to 125C01.12Y
ADP1707ARDZ-1.0-R7 Last Time Buy8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-1.1-R7 Last Time Buy8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-1.2-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-1.3-R7 Last Time Buy8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-1.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-1.8-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-2.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-3.0-R7 Last Time Buy8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
ADP1707ARDZ-3.3-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.12Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
ADP1707-3.3-EVALZEvaluation Board60.72Y
ADP1706/ADP1707/ADP1708: 1 A, Low Dropout, CMOS Linear Regulator Data Sheet (Rev. A) adp1706
ADI Linear Regulator Design Tool and Parametric Search adp2108
AN-1072: How to Successfully Apply Low Dropout Regulators adp2108
AN-1072: 在系统中成功运用低压差稳压器 (Rev. 0) adp2108