ADP7102 20 V, 300 mA, Low Noise, CMOS LDO

The ADP7102 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 300 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 μF ceramic output capacitor.

The ADP7102 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN − VDO via an external feedback divider.

The ADP7102 output noise voltage is 15 μV rms and is independent of the output voltage. A digital power good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies.

The ADP7102 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 300 mA of output current in a small, low-profile footprint.

APPLICATIONS
  • Regulation to noise sensitive applications: ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks, and phase-locked loops
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation
Features and Benefits
  • Input voltage range:
    3.3 V to 20 V
  • Maximum output current:
    300 mA
  • Low noise: 15 μV rms for fixed output versions
  • PSRR performance of 60 dB at 10 kHz, VOUT = 3.3 V
  • Reverse current protection
  • Low dropout voltage:
    200 mV at 300 mA load
  • Initial accuracy: ±0.8%
  • See data sheet for additional features
    • Power Management
    Design Tools
    Reference Designs
    Data Sheets
    Documentnote
    ADP7102: 20 V, 300 mA, Low Noise, CMOS LDO Data Sheet (Rev. E)PDF 796 kB
    Application Notes
    Documentnote
    AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0)PDF 486.76 K
    AN-1316: Generating Multiple Isolated Bias Rails for IGBT Motor Drives with Flyback, SEPIC, and Ćuk Combination (Rev. 0)PDF 522.41 K
    User Guides
    Documentnote
    UG-582: Evaluating the EVAL-CN0290-SDPZPDF 306 kB
    UG-264: RedyKits for the ADP7102 Low Dropout (LDO) Linear RegulatorPDF 538 kB
    UG-218: User Guide for the ADP7102/ADP7104 Evaluation BoardPDF 532 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADP7102ACPZ-1.5-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-1.8-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-2.5-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-3.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-3.3-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-5.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-9.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ACPZ-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.34Y
    ADP7102ARDZ-1.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-1.8-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-2.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-3.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-3.3-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-5.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-9.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    ADP7102ARDZ-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.54Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    ADP7102CP-EVALZADP7102 (Adj. Model) Evaluation Board LFCSP60Y
    ADP7102CPZ-REDYKITADP7102 REDYKIT LFCSP60Y
    ADP7102RD-EVALZADP7102 (Adj. Model) Evaluation Board SOIC60Y
    ADP7102RDZ-REDYKITADP7102 REDYKIT SOIC60Y
    Reference Materials
    ADP7102: 20 V, 300 mA, Low Noise, CMOS LDO Data Sheet (Rev. E) adp7102
    ADP7102: 20 V、300 mA低噪声CMOS LDO数据手册 (Rev. A) adp7102
    ADI Linear Regulator Design Tool and Parametric Search adp2108
    CN0290 设计与集成文件 adclk905
    CN0281 设计和集成文件 adt7311
    CN-0373 Design and Integration Files adp190
    CN0292 Design & Integration Files adg1204
    AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0) adp1741
    AN-1329：面向可调低压差稳压器的降噪网络 (Rev. 0) adp1741
    AN-1316: 利用反激、 SEPIC 和 Ćuk 组合为 IGBT 电机驱动产生多个隔离偏置轨 (Rev. 0) adp1621
    AN-1316: Generating Multiple Isolated Bias Rails for IGBT Motor Drives with Flyback, SEPIC, and Ćuk Combination (Rev. 0) ad7403
    UG-582: Evaluating the EVAL-CN0290-SDPZ adclk905
    UG-264: RedyKits for the ADP7102 Low Dropout (LDO) Linear Regulator adp7102
    UG-218: User Guide for the ADP7102/ADP7104 Evaluation Board adp7102
    Ultralow Noise, High Rejection Low Dropout Regulators adp1740
    CN0292：用于工业电平信号的完全隔离、鲁棒、4通道、多路复用数据采集系统 adg1204
    CN-0373：隔离式USB转隔离式RS-485/隔离式RS-232接口 adp190
    CN-0290：扩展高性能锁相环的低频范围 adclk905
    CN0281：利用ADuC7060/ADuC7061精密模拟微控制器构建基于汽车SENT接口且带冷结补偿的热电偶温度传感器 adt7311
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