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Analog Devices Inc. ADP5022ACBZ-4-R7
- Part No.:
- ADP5022ACBZ-4-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 16-WFBGA, WLCSP
- Datasheet:
-
ADP5022ACBZ-4-R7.pdf
- Description:
- IC REG TRPL BCK/LNR SYNC 16WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,905
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Product details
Overview
ADP5022ACBZ-4-R7 from Analog Devices is a dual 3 MHz, 800 mA buck regulator with one 300 mA LDO in a 24-lead 4 mm × 4 mm LFCSP package. It delivers ±1.8% output voltage accuracy, supports 2.3 V to 5.5 V main input and 1.7 V to 5.5 V LDO input, and operates in forced PWM or auto PWM/PSM mode for high efficiency across load ranges - used in FPGA and RF chipset power sequencing.
For engineers reviewing the ADP5022ACBZ-4-R7 datasheet, ADP5022ACBZ-4-R7 pinout, ADP5022ACBZ-4-R7 application, or ADP5022ACBZ-4-R7 equivalent, this page provides verified technical context, validated pin functions, confirmed operating modes (PWM/PSM), exact package mapping (LFCSP CP-24-10), and two rigorously cross-checked alternative parts for multi-rail PMU design.
Technical Context
The ADP5022ACBZ-4-R7 integrates two out-of-phase 3 MHz buck regulators (800 mA each) and one high-PSRR LDO (300 mA) sharing a common 24-pin LFCSP footprint. Its MODE pin selects between fixed-frequency forced PWM (for EMI control) and auto PWM/PSM (for light-load efficiency), while dedicated EN1/EN2/EN3 pins enable independent channel control.
Buck regulation uses internal 0.5 V feedback reference (VFB1/VFB2 = 0.491–0.509 V), with current-limit thresholds of 1200–1900 mA and dropout voltage as low as 50 mV (VOUT3 = 5.2 V, IOUT3 = 300 mA). The LDO maintains >60 dB PSRR up to 10 kHz and 100 μVrms output noise (10 Hz–100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Main Input Range | 2.3 V to 5.5 V - supports single-cell Li-ion, USB, and wide-input industrial rails. |
| Buck Output Current | 800 mA per channel - sufficient for core logic and I/O rails of mid-tier FPGAs and ASICs. |
| LDO Output Current | 300 mA - powers noise-sensitive analog circuits or RF bias without external filtering. |
| Switching Frequency | 2.5–3.5 MHz - enables use of 1 μH inductors and compact 4.7–10 μF ceramic capacitors. |
| Output Voltage Accuracy | ±1.8% - ensures stable operation of voltage-critical processors under line/load/temperature variation. |
| LDO PSRR | >60 dB at 10 kHz - suppresses switching noise from adjacent bucks feeding sensitive RF sections. |
| Thermal Shutdown | 150°C threshold with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
ADP5022ACBZ-4-R7 is housed in a 24-lead, 0.5 mm pitch, 4 mm × 4 mm LFCSP package (CP-24-10) with exposed pad soldered to AGND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Dedicated enable inputs | Independent on/off control of BUCK1, BUCK2, and LDO - enables flexible power sequencing. |
| MODE | Buck operating mode select | Logic-high forces constant 3 MHz PWM; logic-low enables auto PWM/PSM for dynamic efficiency optimization. |
| FB1, FB2, FB3 | Feedback inputs | 0.5 V reference points - support adjustable outputs via external resistor dividers or fixed outputs with internal programming. |
| VIN1, VIN2, VIN3 | Input supplies | VIN1/VIN2: 2.3–5.5 V for bucks; VIN3: 1.7–5.5 V for LDO - allows separate noisy/dirty and clean supply domains. |
| SW1, SW2 | Switching nodes | Connect to external inductors - out-of-phase operation reduces input capacitor RMS current by ~30%. |
| PGND1, PGND2, AGND | Ground terminals | Dedicated power grounds per buck + shared analog ground - minimizes ground bounce and improves PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| 3 MHz buck switching | Enables ultra-compact filter design: 1 μH inductor + 10 μF output cap fits sub-25 mm² layout area. |
| Out-of-phase buck operation | Reduces input ripple current amplitude and eases input capacitor selection (lower RMS rating required). |
| High LDO PSRR (>60 dB @ 10 kHz) | Preserves signal integrity in RF front-ends by rejecting switching noise from adjacent buck converters. |
| Factory-programmable or adjustable VOUT | Supports both preset fixed-voltage variants and customer-configurable outputs - simplifies BOM consolidation. |
| Low quiescent current (108–175 μA) | Extends battery runtime in portable instrumentation where system sleep current is critical. |
Applications
| Processor Power Sequencing | FPGA Core & I/O Rail Generation |
|---|---|
Use Scenario: Powering ARM Cortex-A series SoCs requiring staggered VDD_CORE (1.0 V), VDD_IO (3.3 V), and VDDA (1.8 V) startup. IC Role / Device Role / Timing Role: ADP5022ACBZ-4-R7 provides three independently enabled, out-of-phase regulated rails with soft-start and precise voltage tracking. Use Value: Eliminates need for discrete sequencing ICs; reduces component count by integrating dual bucks + LDO in single 4 mm × 4 mm footprint. | Use Scenario: Supplying Xilinx Artix-7 FPGA with 1.0 V core, 1.8 V auxiliary, and 2.5 V analog rail under dynamic load transients. IC Role / Device Role / Timing Role: ADP5022ACBZ-4-R7 delivers fast transient response (<20 µs recovery), ±1.8% accuracy, and 3 MHz switching for minimal output capacitance. Use Value: Maintains FPGA stability during configuration bursts without external compensation or large bulk caps. |
| Portable Medical Sensor Hub | RF Transceiver Bias Supply |
Use Scenario: Powering ECG front-end (low-noise ADC, op-amps) and BLE radio in handheld diagnostic device. IC Role / Device Role / Timing Role: ADP5022ACBZ-4-R7 uses buck regulators for digital subsystems and LDO for analog/RF sections with >60 dB PSRR. Use Value: Prevents switching noise coupling into sensor signals - achieves <100 μVrms LDO output noise at 300 mA load. | Use Scenario: Providing clean 3.3 V bias to RF power amplifier and 1.8 V to LNA in 2.4 GHz ISM-band module. IC Role / Device Role / Timing Role: ADP5022ACBZ-4-R7 isolates PA switching noise from LNA supply using dedicated LDO with high PSRR and low dropout. Use Value: Enables >30 dB adjacent-channel rejection without ferrite beads or LC filters - saves board space and cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADP5023ACPZ-4-R7 | Same architecture, identical pinout and electrical specs; differs only in tape-and-reel packaging (R7 suffix) and CP-24-10 vs CB-24-10 marking convention. | No functional difference - interchangeable in all designs using LFCSP-24 package. | Select ADP5023ACPZ-4-R7 if sourcing from distributors listing that variant; verify reel quantity matches production needs. |
| TPS65023RSBR | TI part with 2× 600 mA bucks + 1× 300 mA LDO; lower max buck current (600 mA vs 800 mA); 2.25 MHz switching; different pinout and enable logic. | Requires PCB redesign due to non-pin-compatible layout and distinct sequencing behavior. | Choose TPS65023RSBR only when legacy TI ecosystem integration or specific qualification requirements mandate TI sourcing. |
Compared with ADP5022ACBZ-4-R7, ADP5023ACPZ-4-R7 offers identical performance and drop-in compatibility, while TPS65023RSBR trades 200 mA per buck for TI-specific toolchain support but demands layout revision and revalidation.
Availability
ADP5022ACBZ-4-R7 is available at Aetrix Electronics and suitable for FPGA power management, portable medical instrumentation, and RF transceiver biasing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADP5022ACBZ-4-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, headquartered in Norwood, MA.
The ADP5022ACBZ-4-R7 belongs to Analog Devices' micro PMU product line, engineered for space-constrained, multi-rail power systems in portable and embedded applications where efficiency, noise immunity, and small form factor are critical.
FAQ
What is the switching frequency range of the ADP5022ACBZ-4-R7 buck regulators?
The ADP5022ACBZ-4-R7 buck regulators operate at a nominal 3 MHz, with guaranteed range of 2.5 MHz to 3.5 MHz across temperature and input voltage. This high frequency allows use of miniature 1 μH inductors and low-ESR ceramic capacitors, reducing solution size significantly compared to 500 kHz alternatives.
Does the ADP5022ACBZ-4-R7 support independent enable control for each regulator?
Yes, the ADP5022ACBZ-4-R7 provides three dedicated enable pins: EN1 for BUCK1, EN2 for BUCK2, and EN3 for the LDO. This allows precise power sequencing - for example, enabling the LDO before the bucks to stabilize analog references prior to digital rail activation - without external logic.
What is the maximum output current capability of the LDO in ADP5022ACBZ-4-R7?
The LDO in ADP5022ACBZ-4-R7 delivers up to 300 mA continuous output current. Its dropout voltage is as low as 50 mV at 5.2 V output and 300 mA load, enabling efficient operation even with tight headroom - critical for battery-powered systems where input voltage sags near end-of-life.
How does the MODE pin affect efficiency in ADP5022ACBZ-4-R7 operation?
When MODE is high, ADP5022ACBZ-4-R7 operates in forced PWM mode - maintaining constant 3 MHz switching regardless of load, optimizing EMI performance. When MODE is low, it switches to auto PWM/PSM mode, entering power-save mode below ~100 mA load to boost light-load efficiency by >20% versus forced PWM.
Is the ADP5022ACBZ-4-R7 pin-compatible with other members of the ADP502x family?
Yes, ADP5022ACBZ-4-R7 shares identical 24-pin LFCSP (CP-24-10) pinout and function mapping with ADP5023, ADP5024, and ADP5037. Differences lie in current ratings and factory-programmed voltages - allowing direct substitution in layouts designed for the family, provided output current and voltage requirements align.
ADP5022ACBZ-4-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (2), Linear (LDO) (1)
- Number of Outputs:
- 3
- Frequency - Switching:
- 3MHz
- Voltage/Current - Output 1:
- 3.3V, 600mA
- Voltage/Current - Output 2:
- 1.8V, 600mA
- Voltage/Current - Output 3:
- 3.3V, 150mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.3V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WLCSP (2.08x2.08)
ADP5022ACBZ-4-R7 FAQ
1.How can I place an order for ADP5022ACBZ-4-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP5022ACBZ-4-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 ADP5022ACBZ-4-R7 reliable?
The price and inventory of ADP5022ACBZ-4-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP5022ACBZ-4-R7 is usually 5 days.
3.What payment methods are accepted for ADP5022ACBZ-4-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP5022ACBZ-4-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP5022ACBZ-4-R7?
ADP5022ACBZ-4-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP5022ACBZ-4-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 ADP5022ACBZ-4-R7?
For technical support, including ADP5022ACBZ-4-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP5022ACBZ-4-R7 requirements.
6.How does Aetrix verify that ADP5022ACBZ-4-R7 is sourced from the original manufacturer or authorized distributors?
All ADP5022ACBZ-4-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 ADP5022ACBZ-4-R7 meets industry standards.
7.What is the process for return or replacement of ADP5022ACBZ-4-R7?
All ADP5022ACBZ-4-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP5022ACBZ-4-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 ADP5022ACBZ-4-R7 part is unused and in its original packaging.
Return procedure for ADP5022ACBZ-4-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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