My Inquiry
My Account
Analog Devices Inc. ADP2325ACPZ-R7
- Part No.:
- ADP2325ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADP2325ACPZ-R7.pdf
- Description:
- IC REG CTRLR BUCK 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:646
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADP2325ACPZ-R7 from Analog Devices is a dual-channel synchronous step-down DC/DC regulator with integrated 48 mΩ high-side MOSFETs, supporting 5 A per channel (or 10 A in parallel mode), 4.5 V to 20 V input, and 0.6 V minimum output voltage. It delivers precise ±1% output accuracy and operates across −40°C to +125°C junction temperature for industrial power rail conversion.
For engineers reviewing the ADP2325ACPZ-R7 datasheet, ADP2325ACPZ-R7 pinout, ADP2325ACPZ-R7 application, or ADP2325ACPZ-R7 equivalent, key selection factors include dual-phase current-mode control, 180° out-of-phase switching for reduced input ripple, programmable 250 kHz–1.2 MHz frequency, PFM/PWM mode selection, and independent enable/power-good signaling for robust sequencing in multi-rail systems.
Technical Context
The ADP2325ACPZ-R7 implements a current-mode PWM architecture with two independent channels, each integrating a high-side MOSFET and driving an external low-side N-channel MOSFET. Its 180° phase shift between channels minimizes input current ripple and allows smaller input capacitance.
It supports flexible configuration: dual 5 A outputs, parallel 10 A single output, or ratiometric/coincident voltage tracking via TRK1/TRK2 pins. Synchronization capability (300–1200 kHz) with 60°/90°/120° programmable phase shift enables multi-phase stacking without external controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 20 V - supports wide-input industrial and telecom rails including 12 V and 19 V systems. |
| Output Current Capability | Dual 5 A or parallel 10 A - enables scalable power delivery for FPGA, ASIC, or multi-core processor rails. |
| Output Voltage Accuracy | ±1% over line/load/temperature - ensures stable regulation for sensitive digital loads without post-regulation. |
| Switching Frequency Range | 250 kHz to 1.2 MHz - adjustable via RT resistor or external sync clock to avoid noise-sensitive bands (e.g., AM radio, audio). |
| High-Side RDS(on) | 48 mΩ typical - reduces conduction loss and thermal stress at full load, enabling compact thermal design. |
| Operating Junction Temp | −40°C to +125°C - qualified for harsh environments including industrial motor drives and base station power supplies. |
| Package | 32-lead LFCSP_WQ (5 mm × 5 mm, 0.5 mm pitch) - exposes thermal pad for efficient PCB heat dissipation. |
Pinout & Package
The ADP2325ACPZ-R7 is housed in a 32-lead LFCSP_WQ package with exposed thermal pad soldered to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGOOD1 / PGOOD2 | Open-drain power-good status | Signals valid output regulation per channel; requires external pull-up for system sequencing and fault monitoring. |
| EN1 / EN2 | Independent enable inputs | Logic-controlled startup with 1.28 V rising threshold; supports staggered power-up of multi-rail systems. |
| FB1 / FB2 | Feedback voltage sense | 0.6 V reference enables precise output setting via resistor divider; supports parallel operation when shorted. |
| SYNC / SCFG | Synchronization I/O with configuration | Configurable as input (for master clock sync) or output (for multi-phase stack); SCFG selects phase shift (60°/90°/120°). |
| TRK1 / TRK2 | Voltage tracking inputs | Enable ratiometric or coincident sequencing of multiple rails (e.g., core and I/O voltages) without external circuitry. |
| DL1 / DL2 | Low-side gate drivers | Drive external N-MOSFETs; current limit set by resistor to PGND - allows optimization for small inductors or fast transient response. |
| BST1 / BST2 | Bootstrap supply rails | Require 0.1 µF ceramic capacitor from BSTx to SWx - sustains high-side gate drive during 100% duty cycle conditions. |
| RT | Frequency programming | Resistor-to-GND sets switching frequency; enables EMI tuning and efficiency optimization across load range. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel current-mode control | Enables independent regulation and dynamic load response per rail while maintaining tight cross-regulation in shared-input configurations. |
| 180° phase-shifted operation | Reduces RMS input current ripple by ~30%, allowing smaller input capacitors and lower EMI filter cost. |
| Programmable PFM/PWM mode | PFM extends light-load efficiency (>85% at 10 mA), while forced PWM maintains fixed frequency for noise-sensitive applications like ADCs or RF circuits. |
| External compensation | Allows full loop stability optimization for diverse output capacitors (polymer, MLCC, electrolytic) and inductor values across operating conditions. |
| Startup into precharged output | Prevents reverse current flow during hot-plug or brownout recovery - critical for systems with backup capacitors or battery-backed rails. |
| Comprehensive protection suite | Includes UVLO, OVP, hiccup-mode overcurrent, thermal shutdown, and soft-start - eliminates need for external supervisors in most designs. |
Applications
| Communications Infrastructure | Networking and Servers |
|---|---|
Use Scenario: Powering FPGA transceivers and SerDes lanes in 5G remote radio units requiring tightly regulated 1.2 V and 3.3 V rails. IC Role / Device Role / Timing Role: Dual-output buck regulator delivering independent, sequenced, and tracked voltages with <1% tolerance and <10 µs transient response. Use Value: Eliminates discrete sequencing ICs and reduces BOM count by integrating tracking, soft start, and power-good signals per channel. | Use Scenario: Generating intermediate 5 V and 3.3 V rails for switch ASICs and PHYs in 10/25 GbE switches with strict EMI limits. IC Role / Device Role / Timing Role: Synchronized dual-phase controller operating at 600 kHz with 180° phase shift to minimize input ripple and meet CISPR-32 Class B conducted emissions. Use Value: Reduces required input bulk capacitance by 40% versus single-phase solutions, saving board space and cost. |
| Industrial Automation | Healthcare Imaging Systems |
Use Scenario: Supplying isolated microcontroller cores and analog front-ends in PLC I/O modules with wide 12–24 V DC input. IC Role / Device Role / Timing Role: Wide-input dual buck managing 3.3 V logic and 5 V sensor bias rails, featuring UVLO hysteresis and thermal derating up to 125°C ambient. Use Value: Ensures reliable startup and continuous operation under variable industrial bus voltages and elevated enclosure temperatures. | Use Scenario: Powering high-speed ADCs and FPGA-based image reconstruction engines in portable ultrasound devices. IC Role / Device Role / Timing Role: Low-noise, PFM-capable regulator delivering ultra-stable 1.8 V and 2.5 V rails with <10 mV p-p ripple in battery-powered mode. Use Value: Extends battery life via >90% light-load efficiency while maintaining signal integrity through low-output-impedance regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS544B20RJER | Single-chip dual 4 A solution with integrated low-side FETs; fixed 500 kHz–2.2 MHz frequency; no external sync phase shift. | Lower external component count but lacks TRK/SCFG/SYNC flexibility; limited to ≤18 V input. | Choose for simpler designs where integrated low-side FETs reduce layout complexity and input voltage stays ≤18 V. |
| ISL91211AIRZ-T7A | Triple-output PMIC with 3 A/3 A/2 A channels; supports DVS and I²C programmability; 2.5–5.5 V input only. | Targeted at mobile SoCs; unsuitable for 12–20 V industrial inputs or high-current parallel operation. | Choose only for battery-powered, low-voltage multi-rail applications requiring dynamic voltage scaling and I²C control. |
Compared with TPS544B20RJER and ISL91211AIRZ-T7A, the ADP2325ACPZ-R7 uniquely supports 20 V input, 10 A parallel mode, 180° phase shift, and external synchronization with programmable phase - making it optimal for high-reliability, wide-input, multi-phase industrial and infrastructure power systems.
Availability
ADP2325ACPZ-R7 is available at Aetrix Electronics and suitable for communications infrastructure, industrial automation, and healthcare imaging systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADP2325ACPZ-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 precision instrumentation, industrial, automotive, and communications markets.
The ADP2325ACPZ-R7 belongs to Analog Devices' high-efficiency power management product line, designed specifically for demanding multi-rail DC/DC conversion in infrastructure and industrial equipment where reliability, thermal performance, and design flexibility are critical.
FAQ
What is the maximum input voltage rating for the ADP2325ACPZ-R7?
The ADP2325ACPZ-R7 has an absolute maximum PVIN rating of +22 V, with recommended operational input range from 4.5 V to 20 V. Exceeding 20 V continuously may trigger overvoltage protection or degrade long-term reliability. The device's internal UVLO circuit activates at 4.4 V (rising) and releases at 3.7 V (falling), ensuring clean startup under varying input conditions. Always refer to Table 2 (Absolute Maximum Ratings) and Table 1 (Specifications) in the official ADP2325ACPZ-R7 datasheet for safe operating margins.
Can the ADP2325ACPZ-R7 operate with only one channel enabled?
Yes, the ADP2325ACPZ-R7 supports independent channel control: EN1 and EN2 are separate logic inputs, allowing Channel 1 or Channel 2 to be disabled while the other remains active. When one channel is disabled, its associated high-side MOSFET and driver are fully turned off, reducing quiescent current to ~30 µA total. The enabled channel continues full regulation with full feature set - including soft start, power-good assertion, and current limiting. This capability is confirmed in the "Precision Enable/Shutdown" section of the ADP2325ACPZ-R7 datasheet (Rev. A, Page 16).
Does the ADP2325ACPZ-R7 require external low-side MOSFETs?
Yes, the ADP2325ACPZ-R7 integrates only the high-side N-channel MOSFETs (48 mΩ typical RDS(on)). It requires external low-side N-channel MOSFETs driven by DL1 and DL2 outputs. The current-limit threshold is set by a resistor from DLx to PGND, enabling optimization for specific MOSFET gate charge and conduction loss trade-offs. This architecture provides design flexibility unattainable with fully integrated dual-buck ICs and is explicitly detailed in the "Low-Side Driver (DLx PINS)" section of the ADP2325ACPZ-R7 datasheet (Page 4).
How is output voltage accuracy maintained across temperature for the ADP2325ACPZ-R7?
The ADP2325ACPZ-R7 achieves ±1% output voltage accuracy over −40°C to +125°C junction temperature via a trimmed 0.6 V internal reference (VFB = 0.594 V to 0.606 V, typ.) and low-drift error amplifier (transconductance gm = 370–630 µS). Figure 17 in the ADP2325ACPZ-R7 datasheet shows feedback voltage variation of <±1.5 mV across temperature, directly supporting the ±1% system-level accuracy claim when using standard 0.5% resistors in the feedback divider. No external calibration is needed.
What thermal management guidance applies to the ADP2325ACPZ-R7 in high-power operation?
The ADP2325ACPZ-R7 uses a 32-lead LFCSP_WQ package with θJA = 32.7°C/W on a JEDEC 4-layer board. For 10 A parallel operation at 12 VIN/3.3 VOUT, thermal derating curves (Figures 42 & 44) show usable output current drops to ~4.5 A at 110°C case temperature. To sustain full load, use ≥6 thermal vias under the exposed pad, 2 oz copper on inner layers, and airflow ≥200 LFM. The device enters thermal shutdown at 150°C with 15°C hysteresis, as specified in the ADP2325ACPZ-R7 datasheet (Page 6).
ADP2325ACPZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Number of Outputs:
- 2
- Output Phases:
- 2
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 20V
- Frequency - Switching:
- 600kHz
- Duty Cycle (Max):
- 90%
- Synchronous Rectifier:
- No
- Clock Sync:
- Yes
- Serial Interfaces:
- -
- Control Features:
- Enable, Frequency Control, Power Good, Soft Start, Tracking
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LFCSP-WQ (5x5)
ADP2325ACPZ-R7 FAQ
1.How can I place an order for ADP2325ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2325ACPZ-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 ADP2325ACPZ-R7 reliable?
The price and inventory of ADP2325ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2325ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP2325ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2325ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2325ACPZ-R7?
ADP2325ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2325ACPZ-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 ADP2325ACPZ-R7?
For technical support, including ADP2325ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2325ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2325ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2325ACPZ-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 ADP2325ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP2325ACPZ-R7?
All ADP2325ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2325ACPZ-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 ADP2325ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADP2325ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP2325ACPZ-R7 Tags
-
UCC28C45DR
Texas Instruments
-
UCC28C40DR
Texas Instruments
-
UCC28C43DR
Texas Instruments
-
ZXSC410E6TA
Diodes Incorporated
-
LM3524DMX/NOPB
Texas Instruments
-
LM3489MMX/NOPB
Texas Instruments
-
MIC2102YML-TR
Microchip Technology
-
LM5148RGYR
Texas Instruments
-
TL598CDR
Texas Instruments
-
LM5155DSSR
Texas Instruments
-
LM25085MYX/NOPB
Texas Instruments
-
UCC2813DTR-0
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
