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Analog Devices Inc. ADP7102ACPZ-3.0-R7
- Part No.:
- ADP7102ACPZ-3.0-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADP7102ACPZ-3.0-R7.pdf
- Description:
- IC REG LINEAR 3V 300MA 8LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,502
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Product details
Overview
ADP7102ACPZ-3.0-R7 from Analog Devices is a 3.0 V fixed-output, 300 mA CMOS low-dropout linear regulator with 15 μVrms output noise, 200 mV dropout at full load, and ±0.8% initial accuracy. It operates from 3.3 V to 20 V input and delivers ultra-low-noise power for precision analog signal chains in ADC/DAC systems and clocking circuits.
For engineers reviewing the ADP7102ACPZ-3.0-R7 datasheet, ADP7102ACPZ-3.0-R7 pinout, ADP7102ACPZ-3.0-R7 application, or ADP7102ACPZ-3.0-R7 equivalent, key selection criteria include its 15 μVrms noise floor, 60 dB PSRR at 10 kHz, reverse current protection, power-good indicator, and compatibility with 1 μF ceramic output capacitors.
Technical Context
The ADP7102ACPZ-3.0-R7 employs an advanced proprietary CMOS architecture optimized for high PSRR (60 dB @ 10 kHz) and low noise across its 3.3–20 V input range. Its internal error amplifier uses SENSE/ADJ feedback for precise regulation, with dedicated EN/UVLO logic enabling programmable undervoltage lockout and sequencing control.
It integrates foldback current limiting, thermal shutdown at 150°C with 15°C hysteresis, and a digital open-drain power-good (PG) output that asserts low during startup delay, dropout, overcurrent, or thermal fault. The LFCSP package's exposed pad provides low θJA = 40.1°C/W for stable 300 mA operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 3.0 V ±0.8% initial accuracy; −2%/+1% over line/load/temperature ensures stable reference for precision converters. |
| Max output current | 300 mA continuous; supports rail-to-rail analog subsystems without external pass devices. |
| Output noise | 15 μVrms (10 Hz–100 kHz); enables clean biasing of high-resolution ADCs and RF oscillators. |
| Dropout voltage | 200 mV at 300 mA; allows regulation from 3.3 V input down to 3.0 V output with minimal headroom loss. |
| PSRR | 60 dB at 10 kHz; suppresses switching noise from upstream DC/DC converters feeding sensitive analog stages. |
| Quiescent current | 750 μA at 5 V input and 300 mA load; balances low-noise performance with moderate power efficiency. |
| Shutdown current | 40 μA at 12 V input; enables low-power system sleep modes without compromising fast wake-up. |
Pinout & Package
ADP7102ACPZ-3.0-R7 is housed in an 8-lead, 3 mm × 3 mm LFCSP package with exposed thermal pad (EPAD), offering compact footprint and superior thermal performance (θJA = 40.1°C/W). The EPAD must be soldered to PCB ground plane per datasheet recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Regulated output | Delivers stable 3.0 V; requires ≥1 μF ceramic bypass capacitor directly to GND for stability. |
| 2 - SENSE/ADJ | Feedback sense node | Connected internally to output for fixed-voltage mode; senses actual load voltage to compensate for IR drop. |
| 3 - GND | Power ground | Primary return path; connects to EPAD and system ground plane for low-impedance noise rejection. |
| 4 - NC | No connect | Not electrically bonded; must remain unconnected per datasheet Note 1. |
| 5 - EN/UVLO | Enable & UVLO input | Active-high enable; configurable as precision undervoltage lockout with external resistor divider for supply sequencing. |
| 6 - GND | Second ground terminal | Provides additional low-impedance return; ties to same ground net as Pin 3 and EPAD. |
| 7 - PG | Power-good open-drain | Asserts low if VOUT falls below 90% nominal, during shutdown, or under fault; requires external pull-up to VIN or VOUT. |
| 8 - VIN | Input supply | Accepts 3.3–20 V; requires ≥1 μF ceramic bypass capacitor to GND near pin for transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise regulation | 15 μVrms output noise independent of output voltage-critical for 16+ bit ADCs and PLL VCO supplies. |
| Reverse current protection | 0.3 μA max reverse input current prevents backfeed when VOUT > VIN, protecting upstream sources. |
| Programmable UVLO | Adjustable rising threshold (1.18–1.28 V) with hysteresis enables robust multi-rail power sequencing. |
| Stability with small caps | Guaranteed stable with only 1 μF ceramic output capacitor-reduces BOM count and board area vs. traditional LDOs. |
| Integrated fault protection | Foldback current limit + thermal shutdown (150°C, 15°C hysteresis) prevents damage during overload or poor heatsinking. |
Applications
| High-Resolution Data Acquisition | Precision Clock Distribution |
|---|---|
|
Use Scenario: Powering 18-bit SAR ADCs and dual-channel DACs in medical imaging front-ends. IC Role / Device Role / Timing Role: Low-noise 3.0 V analog supply rail decoupling reference and core circuitry. Use Value: 15 μVrms noise avoids quantization degradation; 60 dB PSRR rejects DC/DC ripple at 10 kHz switching frequencies. |
Use Scenario: Biasing VCXOs and crystal oscillator buffers in telecom timing modules. IC Role / Device Role / Timing Role: Ultra-clean 3.0 V supply for oscillator core and buffer amplifiers. Use Value: Sub-20 μVrms noise minimizes phase jitter; low dropout preserves headroom in 3.3 V system rails. |
| Industrial Sensor Signal Conditioning | Medical Instrumentation Power |
|
Use Scenario: Regulating excitation voltage and signal chain rails in strain-gauge and RTD measurement systems. IC Role / Device Role / Timing Role: Primary analog supply for instrumentation amplifiers and sigma-delta modulators. Use Value: ±0.8% initial accuracy and −2%/+1% total variation ensure calibrated gain stability over temperature and line. |
Use Scenario: Providing isolated, low-noise analog rails in portable ECG and EEG monitors. IC Role / Device Role / Timing Role: Critical 3.0 V supply for analog front-end and low-power microcontroller peripherals. Use Value: 40 μA shutdown current extends battery life; PG output enables safe power-up sequencing and fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT3045EDD-3.0#PBF | Lower noise (0.8 μVrms), higher PSRR (76 dB @ 10 kHz), but 200 mA max output and 1.8 V min input. | Better suited for ultra-low-jitter clocking where 300 mA is not required; less suitable for 20 V input systems. | Select LT3045EDD-3.0#PBF when sub-1 μVrms noise is mandatory and load current ≤200 mA. |
| TPL7407LDR | 7-channel NMOS array with integrated flyback diodes; not an LDO-no voltage regulation, no low-noise capability. | Designed for relay/LED driver switching-not a replacement for precision analog regulation. | Do not substitute TPL7407LDR for ADP7102ACPZ-3.0-R7; it serves entirely different functional purpose. |
Compared with LT3045EDD-3.0#PBF, ADP7102ACPZ-3.0-R7 trades 0.8 μVrms noise for 50% higher current (300 mA) and wider input range (up to 20 V), while maintaining adequate noise performance for most high-precision analog systems.
Availability
ADP7102ACPZ-3.0-R7 is available at Aetrix Electronics and suitable for high-resolution data acquisition, precision clock distribution, industrial sensor signal conditioning, and medical instrumentation requiring stable component supply and long-term manufacturability.
Supply support for ADP7102ACPZ-3.0-R7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADP7102ACPZ-3.0-R7 belongs to Analog Devices' ADP710x family of high-voltage, low-noise LDOs designed specifically for powering noise-sensitive analog and RF circuits in industrial, medical, and communications infrastructure.
FAQ
What is the maximum input voltage rating for the ADP7102ACPZ-3.0-R7?
The ADP7102ACPZ-3.0-R7 has an absolute maximum input voltage rating of +22 V relative to GND. However, its specified operating input range is 3.3 V to 20 V. Operation above 20 V may compromise reliability or parametric performance, and is not guaranteed by the datasheet. Always maintain VIN within the 3.3–20 V operational window for full specification compliance.
Does the ADP7102ACPZ-3.0-R7 require an external capacitor on the SENSE/ADJ pin?
No-the ADP7102ACPZ-3.0-R7 is a fixed-output variant, so the SENSE/ADJ pin is internally connected to VOUT and does not require external resistors or capacitors. It functions solely as a high-impedance sense node for load regulation; connecting external components is unnecessary and may impair performance.
Can the ADP7102ACPZ-3.0-R7 be used with a 1 μF ceramic output capacitor?
Yes-the ADP7102ACPZ-3.0-R7 is explicitly characterized and guaranteed stable with a minimum 1 μF X7R or X5R ceramic output capacitor. This eliminates the need for larger, less reliable electrolytic or tantalum capacitors, reducing board space and improving long-term reliability in demanding environments.
How does the power-good (PG) output behave during startup of the ADP7102ACPZ-3.0-R7?
The PG output of the ADP7102ACPZ-3.0-R7 remains low until VOUT reaches 90% of its nominal 3.0 V value, then transitions high after a typical start-up time of 800 μs. It reasserts low immediately upon detecting dropout, thermal shutdown, current limit, or EN deactivation-providing deterministic system-level power monitoring.
Is the ADP7102ACPZ-3.0-R7 RoHS compliant and lead-free?
Yes-the ADP7102ACPZ-3.0-R7 is RoHS compliant and features a lead-free finish per JEDEC J-STD-020 moisture sensitivity level 3. Its LFCSP package uses Pb-free solderable terminations and meets all applicable environmental directives for commercial and industrial applications.
ADP7102ACPZ-3.0-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.325V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 900 µA
- Current - Supply (Max):
- 1.4 mA
- PSRR:
- -
- Control Features:
- Enable, Power Good, Under Voltage Lockout
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LFCSP-WD (3x3)
ADP7102ACPZ-3.0-R7 FAQ
1.How can I place an order for ADP7102ACPZ-3.0-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP7102ACPZ-3.0-R7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADP7102ACPZ-3.0-R7 reliable?
The price and inventory of ADP7102ACPZ-3.0-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP7102ACPZ-3.0-R7 is usually 5 days.
3.What payment methods are accepted for ADP7102ACPZ-3.0-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP7102ACPZ-3.0-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP7102ACPZ-3.0-R7?
ADP7102ACPZ-3.0-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP7102ACPZ-3.0-R7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADP7102ACPZ-3.0-R7?
For technical support, including ADP7102ACPZ-3.0-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP7102ACPZ-3.0-R7 requirements.
6.How does Aetrix verify that ADP7102ACPZ-3.0-R7 is sourced from the original manufacturer or authorized distributors?
All ADP7102ACPZ-3.0-R7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADP7102ACPZ-3.0-R7 meets industry standards.
7.What is the process for return or replacement of ADP7102ACPZ-3.0-R7?
All ADP7102ACPZ-3.0-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP7102ACPZ-3.0-R7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADP7102ACPZ-3.0-R7 part is unused and in its original packaging.
Return procedure for ADP7102ACPZ-3.0-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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