ADP7104 20 V, 500 mA, Low Noise, CMOS LDO

The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 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 ADP7104 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 ADP7104 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 ADP7104 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 500 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 PLLs
  • Communications and Infrastructure
  • Medical and Healthcare
  • Industrial and Instrumentation
Features and Benefits
  • Input voltage range:
    3.3 V to 20 V
  • Maximum output current:
    500 mA
  • Low Noise: 15 μVRMS for fixed output versions
  • PSRR Performance of 60 dB @ 10 kHz at VOUT=3.3 V
  • Reverse current protection
  • Low dropout voltage:
    350 mV at 500 mA
  • Initial accuracy: ±0.8%
  • See data sheet for additional features
Power Management
Design Tools
Reference Designs
Data Sheets
Documentnote
ADP7104: 20 V, 500 mA, Low Noise, CMOS LDO Data Sheet (Rev. H)PDF 765 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-265: RedyKits for the ADP7104 Low Dropout (LDO) Linear RegulatorPDF 1533 kB
UG-218: User Guide for the ADP7102/ADP7104 Evaluation BoardPDF 532 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADP7104ACPZ-1.5-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-1.8-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-2.5-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-3.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-3.3-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-5.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-9.0-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ACPZ-R7 Production8 ld LFCSP (3x3mm 1.74x2.38 EP) REEL 1500-40 to 125C01.67Y
ADP7104ARDZ-1.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-1.8-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-2.5-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-3.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-3.3-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-5.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-9.0-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
ADP7104ARDZ-R7 Production8 ld SOIC-EP (2.41mm Exposed pad)REEL 1000-40 to 125C01.82Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
AD-FMCADC3-EBZEvaluation Board1295Y
AD-FMCADC7-EBZEvaluation Board-1Y
AD-FREQCVT1-EBZEvaluation Board349Y
ADP7104CP-EVALZADP7104 Evaluation Board LFCSP-1Y
ADP7104CPZ-REDYKITADP7104 REDYKIT LFCSP-1Y
ADP7104RD-EVALZADP7104 Evaluation Board SOIC-1Y
ADP7104RDZ-REDYKITADP7104 REDYKIT SOIC-1Y
AD-PZSDR2400TDD-EBEvaluation Board399.99Y
AD-TRXBOOST1-EBZEvaluation Board249Y
ADZS-SC584-EZBRDEvaluation Board435Y
ADZS-SC584-EZLITEEZ-BRD with ICE-1000 and 2x 180 Day CCES License495Y
EVAL-AD7606-4SDZEvaluation Board65Y
EVAL-AD7606-6SDZEvaluation Board-1Y
EVAL-AD7606SDZEvaluation Board65Y
EVAL-AD7607SDZEvaluation Board65Y
EVAL-AD7608SDZEvaluation Board65Y
EVAL-SDP-CB1ZEvaluation Controller Board99Y
Reference Materials
ADP7104:20 V、500 mA低噪声CMOS LDO数据手册 (Rev. B) adp7104
ADP7104: 20 V, 500 mA, Low Noise, CMOS LDO Data Sheet (Rev. H) adp7104
ADI Linear Regulator Design Tool and Parametric Search adp2108
CN0343 设计与集成文件 aduc7126
CN0280 设计与集成文件 adm8829
CN0276 设计和集成文件 adg1611
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-265: RedyKits for the ADP7104 Low Dropout (LDO) Linear Regulator adp7104
UG-218: User Guide for the ADP7102/ADP7104 Evaluation Board adp7102
Ultralow Noise, High Rejection Low Dropout Regulators adp1740
CN0343：超声测距 aduc7126
CN0276：高性能、10位至16位旋变数字转换器 adg1611
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
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