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ADP7104ACPZ-9.0-R7
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Product Detailed Parameters
- Description：IC REG LIN 9V 500MA 8-LFCSP-WD
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：9V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.55V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：900 µA
- Current - Supply (Max)：1.6 mA
- PSRR：-
- Control Features：Enable, Power Good, Under Voltage Lockout
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad, CSP
- Supplier Device Package：8-LFCSP-WD (3x3)
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Overview
The ADP7104ACPZ-9.0-R7 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc., providing a fixed 9 V output with up to 500 mA of current capability. It operates within an input voltage range of 3.3 V to 20 V and features a typical dropout voltage of 350 mV at full load. The device delivers high power supply rejection, achieving 60 dB at 10 kHz for the 9 V version, and maintains a low output noise of 15 µV rms across the 10 Hz to 100 kHz bandwidth. Initial accuracy is specified at ±0.8%, with line regulation at 0.015 %/V and load regulation at 0.2 %/A. Quiescent current is 900 µA under full load conditions.
Feature Summary
- Provides reverse current protection to prevent backward flow through the pass element when output exceeds input.
- Includes a user-programmable precision undervoltage lockout function via the EN/UVLO pin to facilitate multi-supply sequencing.
- Features a digital power-good indicator that transitions low during shutdown, current limit, or thermal overload events.
Applications
- Regulation for noise-sensitive analog circuits such as ADCs and DACs
- Powering precision amplifiers and high-frequency oscillators
- Clock and PLL circuit regulation in communications infrastructure
Procurement Notes
Verify the specific suffix R7 indicates tape and reel packaging configuration. Confirm the ACPZ designation corresponds to the 8-lead LFCSP package type. Ensure the 9.0 output voltage option matches the required system rail. Check RoHS compliance status against current manufacturing revisions.
Selection Notes
Select this component for applications requiring a fixed 9 V rail from higher input voltages up to 20 V. The low noise specification suits sensitive signal chains. Ensure the PCB layout supports the thermal requirements of the LFCSP package for 500 mA loads. Verify that the minimum 1 µF ceramic output capacitor requirement is met with appropriate X5R or X7R dielectrics.
Part Context
This part belongs to the ADP7104 family of high input voltage, low noise CMOS LDO regulators. The series offers multiple fixed output options ranging from 1.5 V to 9 V, alongside an adjustable variant. The ADP7104 is designed for performance in mixed-signal environments, combining high PSRR with compact surface-mount packaging options including LFCSP and SOIC.
Replacement Considerations
Other ADP7104 variants with different fixed output voltages (e.g., ADP7104ACPZ-5.0-R7) share identical pinouts and electrical characteristics except for the regulated output level. Substitution requires confirming the target voltage matches the application design.
