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Analog Devices Inc. ADP222ACPZ-3325-R7
- Part No.:
- ADP222ACPZ-3325-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-UFDFN Exposed Pad, CSP
- Datasheet:
-
ADP222ACPZ-3325-R7.pdf
- Description:
- IC REG LINEAR 2.5V/3.3V 8LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,625
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Product details
Overview
ADP222ACPZ-3325-R7 from Analog Devices is a dual-output, 300 mA low-noise LDO voltage regulator in an 8-lead 2 mm × 2 mm LFCSP package, featuring fixed 3.3 V and 2.5 V outputs, 70 dB PSRR at 10 kHz, 27–50 µVrms output noise, and 170 mV dropout at full load. It serves as a post-regulation power source for RF front-ends and precision analog circuitry in portable medical devices.
For engineers reviewing the ADP222ACPZ-3325-R7 datasheet, ADP222ACPZ-3325-R7 pinout, ADP222ACPZ-3325-R7 application, or ADP222ACPZ-3325-R7 equivalent, key selection criteria include dual-rail fixed-voltage stability under dynamic load, PSRR performance above 100 kHz, thermal shutdown behavior at 155°C, and compatibility with 1 µF ceramic output capacitors without external compensation.
Technical Context
The ADP222ACPZ-3325-R7 integrates two independent LDO regulators with separate enable inputs (EN1/EN2), fixed 3.3 V and 2.5 V outputs, and SENSE feedback pins for high-accuracy regulation. Its architecture delivers simultaneous low-noise operation without requiring noise-bypass capacitors while maintaining >60 dB PSRR up to 100 kHz under 100 mA load.
Each regulator employs internal current limiting (400 mA typical) and thermal shutdown (155°C threshold, 15°C hysteresis), with ground current scaling from 65 µA (no load, both enabled) to 450 µA (300 mA load, full temperature range). Input UVLO (2.45 V rise, 2.2 V fall) ensures controlled startup across battery discharge profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V and 2.5 V - eliminates external resistor networks and improves long-term accuracy vs. adjustable variants. |
| Max Output Current | 300 mA per channel - supports moderate-power digital ICs and analog signal chains without derating at +85°C. |
| PSRR @ 100 kHz | 60 dB - suppresses switching noise from upstream DC/DC converters in multi-rail systems. |
| Output Noise | 50 µVrms @ 2.8 V, 45 µVrms @ 2.5 V (10 Hz–100 kHz) - enables clean supply for ADCs and RF synthesizers. |
| Dropout Voltage | 170 mV @ 300 mA - allows operation from single-cell Li-ion (3.0 V min) while delivering full-rated output. |
| Quiescent Current | 65 µA (both LDOs enabled, no load) - extends battery runtime in always-on sensor nodes. |
| Operating Input Range | 2.5 V to 5.5 V - compatible with Li-ion, Li-polymer, and regulated 3.3 V/5 V system rails. |
Pinout & Package
ADP222ACPZ-3325-R7 uses an 8-lead, 2 mm × 2 mm LFCSP package with exposed thermal pad (EPAD) that must be connected to GND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN1 | Enable input for first regulator (3.3 V) | Active-high logic; tie to VIN for automatic startup; 1.2 V min VIH ensures robustness against noisy supply rails. |
| 2 - EN2 | Enable input for second regulator (2.5 V) | Independent control enables power sequencing - e.g., delay 2.5 V rail until 3.3 V stabilizes. |
| 3 - GND | Power ground reference | Common return for both LDOs and EPAD; requires low-impedance PCB connection to minimize noise coupling. |
| 4 - SENSE2 | Sense input for VOUT2 (2.5 V) | Remote sensing improves load regulation accuracy by compensating for PCB trace IR drop. |
| 5 - VOUT2 | Regulated 2.5 V output | Must connect ≥1 µF X7R/X5R ceramic capacitor directly to GND; stable with ±30% tolerance caps. |
| 6 - VIN | Input supply (2.5–5.5 V) | Bypass with ≥1 µF ceramic capacitor close to pin; UVLO prevents operation below 2.2 V. |
| 7 - VOUT1 | Regulated 3.3 V output | Same capacitor requirements as VOUT2; independent current limit protects against short-circuit faults. |
| 8 - SENSE1 | Sense input for VOUT1 (3.3 V) | Enables precision regulation at point-of-load; decouples output voltage accuracy from routing losses. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1/EN2 allow precise power sequencing - critical for FPGAs and mixed-signal SoCs requiring ordered rail activation. |
| High PSRR up to 100 kHz | Maintains >60 dB rejection of DC/DC ripple without additional filtering, reducing BOM count and board area. |
| Low-noise operation | 27–50 µVrms noise eliminates need for dedicated noise-reduction capacitors, simplifying layout. |
| Thermal & overcurrent protection | 155°C shutdown with 15°C hysteresis prevents latch-up; current limit triggers at 400 mA to avoid damage during transient overload. |
| Stable with 1 µF ceramics | Eliminates requirement for large tantalum or electrolytic output capacitors - improves reliability and saves space. |
Applications
| Portable Medical Sensors | Wireless Network Modules |
|---|---|
Use Scenario: Continuous glucose monitor with Bluetooth LE radio and analog front-end. IC Role / Device Role / Timing Role: Dual-rail LDO supplies clean 3.3 V for BLE SoC and 2.5 V for precision ADC and op-amp signal conditioning. Use Value: 50 µVrms noise ensures <1 LSB error in 16-bit ADC measurements; 70 dB PSRR isolates RF switching noise from analog path. | Use Scenario: Battery-powered Wi-Fi 6 IoT gateway with dual-band RF transceivers. IC Role / Device Role / Timing Role: Provides isolated 3.3 V for baseband processor and 2.5 V for RF synthesizer VCO supply. Use Value: 170 mV dropout enables full 3.3 V/2.5 V output down to 3.0 V battery voltage; 60 dB PSRR at 100 kHz suppresses DC/DC switching artifacts. |
| Point-of-Sale Terminals | Credit Card Readers |
Use Scenario: Handheld EMV-compliant terminal with contactless reader and display driver. IC Role / Device Role / Timing Role: Powers secure element (3.3 V) and smart card interface (2.5 V) with independent enable control. Use Value: Independent EN1/EN2 supports EMV power-on sequence; ±1% output accuracy meets ISO/IEC 7816-3 voltage tolerance. | Use Scenario: Compact magnetic stripe and chip reader with integrated USB interface. IC Role / Device Role / Timing Role: Supplies 3.3 V to microcontroller and 2.5 V to card interface IC with minimal quiescent current. Use Value: 65 µA no-load current extends standby time beyond 1 year on coin cell; SENSE pins maintain voltage accuracy across flex-cable drops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSM1012DUALTR | Fixed 3.3 V / 1.8 V outputs; 200 mA per channel; 45 µVrms noise; no SENSE pins. | Lacks remote sensing - less suitable for high-accuracy analog loads with PCB IR drop. | Select when 1.8 V rail required and sensing not needed; lower cost but reduced regulation precision. |
| TPS7A202533PDBVR | Single-channel dual-LDO in same 2 mm × 2 mm WSON; 300 mA each; 10 µVrms noise; no UVLO. | Lower noise but no input undervoltage lockout - requires external supervision for battery cutoff. | Prefer for ultra-low-noise analog biasing where UVLO is managed externally; not pin-compatible. |
Compared with TSM1012DUALTR and TPS7A202533PDBVR, ADP222ACPZ-3325-R7 uniquely combines fixed 3.3 V/2.5 V outputs, SENSE-based accuracy, integrated UVLO, and 70 dB PSRR at 10 kHz - making it optimal for battery-powered instrumentation demanding simultaneous rail stability and noise immunity.
Availability
ADP222ACPZ-3325-R7 is available at Aetrix Electronics and suitable for portable medical devices, wireless network equipment, and point-of-sale terminals requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for ADP222ACPZ-3325-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The ADP222 product line delivers dual-output, low-noise LDOs optimized for space-constrained, battery-powered applications where PSRR, dropout, and quiescent current directly impact system runtime and signal integrity.
FAQ
What output voltages does the ADP222ACPZ-3325-R7 provide?
The ADP222ACPZ-3325-R7 provides fixed 3.3 V on VOUT1 and fixed 2.5 V on VOUT2. These values are factory-trimmed and do not require external resistors. Output accuracy is ±1% over temperature and load, verified per the ADP222 datasheet Rev. E specifications.
Does the ADP222ACPZ-3325-R7 support remote voltage sensing?
Yes, the ADP222ACPZ-3325-R7 supports remote sensing via dedicated SENSE1 and SENSE2 pins. Connecting SENSE1 to the load side of VOUT1's output capacitor improves regulation accuracy by compensating for PCB trace resistance, especially critical in compact layouts with high-current analog circuits.
What is the minimum input voltage required for the ADP222ACPZ-3325-R7 to regulate properly?
The ADP222ACPZ-3325-R7 requires a minimum input voltage of 2.5 V, but functional regulation depends on headroom: for 3.3 V output, VIN must exceed 3.47 V (3.3 V + 170 mV dropout) at 300 mA. Below that, the device enters dropout mode with degraded PSRR and line regulation.
Can both regulators on the ADP222ACPZ-3325-R7 be enabled independently?
Yes, EN1 controls the 3.3 V regulator and EN2 controls the 2.5 V regulator. Each has independent logic thresholds (VIH = 1.2 V, VIL = 0.4 V), enabling flexible power sequencing - for example, asserting EN1 before EN2 to stabilize the main processor rail prior to powering peripheral interfaces.
Is the ADP222ACPZ-3325-R7 compatible with 1 µF ceramic output capacitors?
Yes, the ADP222ACPZ-3325-R7 is explicitly characterized and stabilized with 1 µF ±30% X7R or X5R ceramic capacitors on both outputs. Y5V and Z5U types are not recommended due to capacitance loss under DC bias and temperature drift.
ADP222ACPZ-3325-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V, 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.26V @ 300mA, 0.26V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 450 µA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LFCSP-UD (2x2)
ADP222ACPZ-3325-R7 FAQ
1.How can I place an order for ADP222ACPZ-3325-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP222ACPZ-3325-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 ADP222ACPZ-3325-R7 reliable?
The price and inventory of ADP222ACPZ-3325-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP222ACPZ-3325-R7 is usually 5 days.
3.What payment methods are accepted for ADP222ACPZ-3325-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP222ACPZ-3325-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP222ACPZ-3325-R7?
ADP222ACPZ-3325-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP222ACPZ-3325-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 ADP222ACPZ-3325-R7?
For technical support, including ADP222ACPZ-3325-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP222ACPZ-3325-R7 requirements.
6.How does Aetrix verify that ADP222ACPZ-3325-R7 is sourced from the original manufacturer or authorized distributors?
All ADP222ACPZ-3325-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 ADP222ACPZ-3325-R7 meets industry standards.
7.What is the process for return or replacement of ADP222ACPZ-3325-R7?
All ADP222ACPZ-3325-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP222ACPZ-3325-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 ADP222ACPZ-3325-R7 part is unused and in its original packaging.
Return procedure for ADP222ACPZ-3325-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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