ADP7182 –28 V, −200 mA, Low Noise, Linear Regulator

The ADP7182 is a CMOS, low dropout (LDO) linear regulator that operates from −2.7 V to −28 V and provides up to −200 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from −27 V down to −1.2 V rails. Using an advanced proprietary architecture, it provides high power supply rejection and low noise, and achieves excellent line and load transient response with a small 2.2 μF ceramic output capacitor.

The ADP7182 is available in fixed output voltage and an adjustable version that allows the output voltage to range from −1.22 V to −VIN + VDO via an external feedback divider.

The following fixed output voltages are available from stock: −5 V (3 mm × 3 mm LFCSP), −1.8 V, −2.5 V, −3 V, −5 V (TSOT), −1.2 V, −1.5 V, −2.5 V, −5 V (2 mm × 2 mm LFCSP). Additional voltages are available by special order.

The ADP7182 regulator output noise is 18 μV rms independent of the output voltage. The enable logic is capable of interfacing with positive or negative logic levels for maximum flexibility. The ADP7182 is available in 5-lead TSOT, 6- and 8-lead LFCSP packages for a small, low profile footprint.

Applications

Features and Benefits
  • Low noise: 18 μV rms
  • Power supply rejection ratio (PSRR): 66 dB at 10 kHz at VOUT = −3 V
  • Positive or negative enable logic
  • Stable with small 2.2 μF ceramic output capacitor
  • Input voltage range: −2.7 V to −28 V
  • Maximum output current: −200 mA
  • Low dropout voltage: −185 mV at −200 mA load
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature
    • +2% maximum/−3% minimum
  • +2% maximum/−3% minimum
  • Low quiescent current, IGND = −650 μA with −200 mA load
  • Low shutdown current: −2 μA
  • Adjustable output from −1.22 V to −VIN + VDO
  • Current-limit and thermal overload protection
  • 6- and 8-lead LFCSP and 5-lead TSOT
  • Supported by ADIsimPower tool
  • Power Management
    Design Tools
    Reference Designs
    Data Sheets
    Documentnote
    ADP7182: –28 V, −200 mA, Low Noise, Linear Regulator Data Sheet (Rev. G)PDF 927.61 K
    Application Notes
    Documentnote
    AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0)PDF 486.76 K
    AN-1359: Low Noise, Dual-Supply Solution Using the ADP5070 for the Precision AD5761R Bipolar DAC in Single-Supply Systems (Rev. A)PDF 0.99 M
    User Guides
    Documentnote
    UG-412: Evaluating the ADP7182 Low Noise, Linear RegulatorPDF 349 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADP7182ACPZ-5.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.45Y
    ADP7182ACPZ-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.45Y
    ADP7182ACPZN-1.2R7 Production6 ld LFCSP (2x2 w/1x1.6 EP)REEL 3000-40 to 125C01.29Y
    ADP7182ACPZN-1.5R7 Production6 ld LFCSP (2x2 w/1x1.6 EP)REEL 3000-40 to 125C01.29Y
    ADP7182ACPZN-2.5R7 Production6 ld LFCSP (2x2 w/1x1.6 EP)REEL 3000-40 to 125C01.29Y
    ADP7182ACPZN-5.0R7 Production6 ld LFCSP (2x2 w/1x1.6 EP)REEL 3000-40 to 125C01.29Y
    ADP7182ACPZN-R7 Production6 ld LFCSP (2x2 w/1x1.6 EP)REEL 3000-40 to 125C01.29Y
    ADP7182AUJZ-1.8-R7 Production5 ld TSOTREEL 3000-40 to 125C01.4Y
    ADP7182AUJZ-2.5-R7 Production5 ld TSOTREEL 3000-40 to 125C01.4Y
    ADP7182AUJZ-3.0-R7 Production5 ld TSOTREEL 3000-40 to 125C01.4Y
    ADP7182AUJZ-5.0-R7 Production5 ld TSOTREEL 3000-40 to 125C01.4Y
    ADP7182AUJZ-R7 Production5 ld TSOTREEL 3000-40 to 125C01.4Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    ADP7182CP-EVALZLFCSP Evaluation Board49Y
    ADP7182UJ-EVALZTSOT Evaluation Board49Y
    Reference Materials
    ADP7182:–28 V、−200 mA、低噪声、线性稳压器 (Rev. B) adp7182
    ADP7182: –28 V, −200 mA, Low Noise, Linear Regulator Data Sheet (Rev. G) adp7182
    ADI Linear Regulator Design Tool and Parametric Search adp2108
    CN0280 设计与集成文件 adm8829
    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-1359: Low Noise, Dual-Supply Solution Using the ADP5070 for the Precision AD5761R Bipolar DAC in Single-Supply Systems (Rev. adp5070
    UG-412: Evaluating the ADP7182 Low Noise, Linear Regulator adp7182
    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
    CN0280:集成隔离式电源、用于太阳能光伏转换器的强大完全隔离式电流检测电路 adm8829