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Analog Devices Inc. ADP2323ACPZ-R7
- Part No.:
- ADP2323ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADP2323ACPZ-R7.pdf
- Description:
- IC REG CTRLR BUCK 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:795
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Product details
Overview
ADP2323ACPZ-R7 from Analog Devices is a dual-channel synchronous step-down DC-DC regulator integrating two 90 mΩ high-side MOSFETs, supporting dual 3 A outputs or parallel 6 A operation across 4.5 V–20 V input range with ±1% output voltage accuracy down to 0.6 V. It delivers precise power conversion for intermediate rail generation in multi-rail telecom and server systems.
For engineers reviewing the ADP2323ACPZ-R7 datasheet, ADP2323ACPZ-R7 pinout, ADP2323ACPZ-R7 application, or ADP2323ACPZ-R7 equivalent, key selection criteria include programmable 250 kHz–1.2 MHz switching frequency, independent enable/PGOOD per channel, external synchronization with 60°/90°/120° phase shift, PFM/PWM mode selection, and thermal shutdown at 150°C.
Technical Context
The ADP2323ACPZ-R7 employs current-mode PWM control with dual independent channels, each featuring integrated high-side MOSFETs and external low-side N-MOSFET drivers. Its 180° out-of-phase operation reduces input ripple and enables smaller input capacitors.
It supports flexible configuration: dual independent 3 A outputs, parallel single 6 A output, or ratiometric/voltage-tracking operation via TRK1/TRK2 pins. Synchronization capability allows stacking into multiphase solutions with programmable phase offsets up to 120°.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 20 V - Supports wide industrial and telecom input rails including 5 V, 12 V, and 19 V systems. |
| Output Current (per channel) | 3 A - Enables dual independent point-of-load regulation without external current sharing circuitry. |
| Switching Frequency | 250 kHz to 1.2 MHz - Programmable via RT resistor or external SYNC clock to avoid noise coupling in sensitive RF/analog sections. |
| Feedback Accuracy | ±1% at 0.6 V reference - Ensures tight regulation for low-voltage FPGA, ASIC, and processor cores. |
| High-Side RDS(on) | 90 mΩ typical - Reduces conduction loss and improves efficiency at full load, especially critical in 12 V input → 3.3 V/1.8 V conversion. |
| Operating Junction Temp | −40°C to +125°C - Qualified for industrial and extended-temperature embedded applications with no derating required up to 125°C. |
| Protection Features | UVLO, OVP, OCP (adjustable), TSD - Provides autonomous fault response without external supervision, enhancing system reliability. |
Pinout & Package
ADP2323ACPZ-R7 is housed in a thermally enhanced 32-lead LFCSP_WQ package (5 mm × 5 mm × 0.85 mm) with exposed pad soldered to PCB ground plane for optimal thermal performance (θJA = 32.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1, SW2 | Switch Node (Channel 1 & 2) | Connects to inductor and high-side MOSFET drain; requires low-inductance layout to minimize EMI and voltage spikes. |
| BST1, BST2 | Bootstrap Supply Rail | Provides gate drive voltage for high-side MOSFETs; requires 0.1 µF ceramic capacitor between BSTx and corresponding SWx. |
| DL1, DL2 | Low-Side Gate Driver Output | Drives external N-channel MOSFET gates; current limit set by resistor to PGND (RILIM). |
| FB1, FB2 | Feedback Input | Senses output voltage via resistor divider; regulates output to 0.6 V reference with ±1% accuracy. |
| EN1, EN2 | Independent Enable Inputs | Programmable UVLO threshold (1.2 V rising); supports staggered power sequencing in multi-rail systems. |
| PGOOD1, PGOOD2 | Open-Drain Power-Good Outputs | Indicate regulation status with 90% rising threshold and 5% hysteresis; require external pull-up for logic-level signaling. |
| SYNC, SCFG | Synchronization Interface | Configurable as input (external clock sync) or output (internal clock); SCFG selects 60°/90°/120° phase shift for multiphase stacking. |
| TRK1, TRK2 | Voltage Tracking Inputs | Enable ratiometric or coincident tracking of master supply; offset < ±10 mV ensures tight tracking accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3 A / Parallel 6 A Operation | Single IC replaces two discrete regulators or a complex current-sharing design, reducing BOM count and board area. |
| 180° Out-of-Phase Switching | Cuts input RMS current ripple by ~30%, allowing smaller input bulk capacitors and lower EMI filter cost. |
| Adjustable Current Limit (RILIM) | Three preset thresholds (0.8–5.8 A) via single resistor per channel-enables optimization for small inductors or high-reliability designs. |
| Startup into Precharged Output | Prevents reverse current flow when powering up into existing bus voltage-critical for hot-swap and redundant power systems. |
| External Compensation & Soft Start | Independent RC networks on COMP1/COMP2 and SS1/SS2 allow fine-tuned loop stability and controlled inrush current per channel. |
Applications
| Communications Infrastructure | Networking and Servers |
|---|---|
Use Scenario: Powering FPGA I/O banks and transceiver cores in 5G baseband units with strict voltage sequencing and low noise. IC Role / Device Role / Timing Role: Dual-output buck regulator delivering independent 1.8 V and 3.3 V rails with synchronized switching to suppress inter-rail coupling. Use Value: 180° phase shift reduces input capacitor RMS current by 30%, enabling 22 µF instead of 47 µF X7R ceramics and lowering total solution size by 18%. |
Use Scenario: Generating intermediate 5 V and 3.3 V rails from 12 V backplane in enterprise switches with thermal constraints. IC Role / Device Role / Timing Role: Dual-channel regulator operating in forced PWM mode to maintain fixed-frequency noise spectrum away from SerDes bands. Use Value: ±1% feedback accuracy and 0.6 V reference ensure stable core voltage under dynamic load steps up to 3 A/µs, preventing logic errors. |
| Industrial Instrumentation | Healthcare and Medical |
Use Scenario: Supplying isolated ADC/DAC signal chains and microcontroller subsystems in portable test equipment with battery+adapter input. IC Role / Device Role / Timing Role: Dual buck converter with independent EN1/EN2 enabling selective power gating of analog and digital domains during sleep modes. Use Value: PFM mode reduces light-load quiescent current to 3 mA, extending battery life by >40% in standby versus fixed-frequency alternatives. |
Use Scenario: Providing tightly regulated 1.2 V and 2.5 V rails for imaging sensor arrays and real-time processing SoCs in ultrasound systems. IC Role / Device Role / Timing Role: Regulator configured in ratiometric tracking mode (TRK1/TRK2) to maintain precise voltage ratios during temperature drift. Use Value: < ±10 mV TRK-to-FB offset ensures <0.5% tracking error over −40°C to +85°C, preserving ADC linearity and SNR. |
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 |
|---|---|---|---|
| TPS543B20RTWR | Single-channel 15 A output; no dual independent outputs; integrates both high- and low-side MOSFETs; 4.5 V–18 V input. | Requires two devices for dual 3 A outputs; lacks TRK/SCFG/SYNC flexibility; higher peak efficiency at 12 V→1.2 V but less versatile sequencing. | Choose when maximum single-rail current (>6 A) is needed and dual independent control is unnecessary. |
| ISL8203MIRZ | Dual 3 A with integrated high-/low-side MOSFETs; 2.9 V–18 V input; fixed 600 kHz fSW; no external SYNC or phase shift. | No synchronization capability limits multiphase scalability; no adjustable current limit or PFM mode; smaller 7 mm × 7 mm QFN package. | Choose for space-constrained designs where fixed-frequency simplicity outweighs advanced timing control needs. |
Compared with TPS543B20RTWR and ISL8203MIRZ, ADP2323ACPZ-R7 uniquely combines dual independent 3 A outputs, 180° phase shift, programmable synchronization, and adjustable current limiting-making it the only option supporting scalable multiphase stacks and precision voltage tracking in a single 5 mm × 5 mm footprint.
Availability
ADP2323ACPZ-R7 is available at Aetrix Electronics and suitable for communications infrastructure, networking servers, and industrial instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADP2323ACPZ-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, industrial, automotive, and communications markets since 1965.
The ADP2323ACPZ-R7 belongs to Analog Devices' Power Management portfolio, designed specifically for high-efficiency, flexible multi-rail DC-DC conversion in space- and thermal-constrained embedded systems.
FAQ
What is the maximum input voltage supported by the ADP2323ACPZ-R7?
The ADP2323ACPZ-R7 supports an absolute maximum input voltage of +22 V on PVIN1 and PVIN2 pins, with recommended operational range from 4.5 V to 20 V. Exceeding 20 V may trigger overvoltage protection or reduce long-term reliability; sustained operation above 20 V is not specified in the datasheet.
Can the ADP2323ACPZ-R7 operate with only one channel enabled?
Yes, the ADP2323ACPZ-R7 supports independent channel control: EN1 and EN2 can be driven separately to enable or disable Channel 1 and Channel 2. When one channel is disabled, its associated circuits enter low-power state while the other channel continues full operation with no performance impact.
How does the ADP2323ACPZ-R7 handle startup into a precharged output?
The ADP2323ACPZ-R7 incorporates dedicated circuitry to detect precharged output conditions and disables high-side MOSFET turn-on until the output voltage falls below the regulation threshold. This prevents reverse current flow through the inductor and protects external components during hot-swap or redundant supply transitions.
What is the purpose of the SCFG pin on the ADP2323ACPZ-R7?
The SCFG (Synchronization Configuration) pin configures the SYNC pin's function: connecting SCFG to INTVCC sets SYNC as a clock output; pulling SCFG to GND via resistor configures SYNC as an input with selectable 60°, 90°, or 120° phase shift-enabling precise multiphase power stage alignment without external logic.
Does the ADP2323ACPZ-R7 support output voltage tracking, and how is it implemented?
Yes, the ADP2323ACPZ-R7 supports both ratiometric and coincident voltage tracking via TRK1 and TRK2 pins. A voltage divider from a master rail drives the TRKx pin, and internal circuitry forces the corresponding FBx node to track within ±10 mV offset-enabling tightly coupled startup/shutdown sequences for FPGAs and processors.
ADP2323ACPZ-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)
ADP2323ACPZ-R7 FAQ
1.How can I place an order for ADP2323ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2323ACPZ-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 ADP2323ACPZ-R7 reliable?
The price and inventory of ADP2323ACPZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2323ACPZ-R7 is usually 5 days.
3.What payment methods are accepted for ADP2323ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2323ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2323ACPZ-R7?
ADP2323ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2323ACPZ-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 ADP2323ACPZ-R7?
For technical support, including ADP2323ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2323ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2323ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2323ACPZ-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 ADP2323ACPZ-R7 meets industry standards.
7.What is the process for return or replacement of ADP2323ACPZ-R7?
All ADP2323ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2323ACPZ-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 ADP2323ACPZ-R7 part is unused and in its original packaging.
Return procedure for ADP2323ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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