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Analog Devices Inc. ADP2164ACPZ-3.3-R7
- Part No.:
- ADP2164ACPZ-3.3-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2164ACPZ-3.3-R7.pdf
- Description:
- IC REG BUCK 3.3V 4A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:7,633
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Product details
Overview
ADP2164ACPZ-3.3-R7 from Analog Devices is a 4 A, synchronous step-down DC-to-DC regulator in a 4 mm × 4 mm LFCSP package, delivering fixed 3.3 V output with ±1.5% accuracy across −40°C to +125°C. It operates from 2.7 V to 6.5 V input, integrates 43 mΩ high-side and 29 mΩ low-side MOSFETs, and supports 600 kHz or 1.2 MHz fixed-frequency PWM for point-of-load power in space-constrained industrial and communications systems.
For engineers reviewing the ADP2164ACPZ-3.3-R7 datasheet, ADP2164ACPZ-3.3-R7 pinout, ADP2164ACPZ-3.3-R7 application, or ADP2164ACPZ-3.3-R7 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-chain support for production-grade implementation.
Technical Context
The ADP2164ACPZ-3.3-R7 uses a current-mode, constant-frequency PWM control architecture with integrated slope compensation to ensure stability at duty cycles ≥50%. Its precision enable input (1.2 V threshold, 100 mV hysteresis) and open-drain power-good output provide reliable sequencing and system monitoring.
It features voltage tracking via the TRK pin (0–600 mV range, ±15 mV offset), synchronizable switching (500 kHz–1.4 MHz), selectable 0°/180° phase shift, and robust protection including UVLO (2.5 V fall, 2.6 V rise), OVP (0.66 V FB threshold), OCP (6.2 A peak limit), and thermal shutdown (140°C, 15°C hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 4 A continuous - supports high-current digital loads without external current sharing. |
| Input Voltage Range | 2.7 V to 6.5 V - compatible with single-cell Li-ion, USB PD, and 3.3 V/5 V intermediate rails. |
| Output Voltage | Fixed 3.3 V ±1.5% - eliminates external feedback resistors and reduces BOM count. |
| Switching Frequency | 600 kHz or 1.2 MHz (pin-selectable) - enables compact magnetics and low output ripple. |
| Integrated FETs | 43 mΩ P-channel / 29 mΩ N-channel - achieves >92% efficiency at 3.3 V/3 A with 5 V input. |
| Protection Features | UVLO, OVP, OCP, thermal shutdown - ensures safe operation under fault conditions without external circuitry. |
| Package | 16-lead, 4 mm × 4 mm LFCSP with exposed pad - provides low θJA (38.3°C/W) for thermally demanding layouts. |
Pinout & Package
ADP2164ACPZ-3.3-R7 is housed in a 16-lead, 4 mm × 4 mm LFCSP package with an exposed thermal pad (EPAD) soldered to PCB ground for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SYNC | Synchronization input | Accepts external clock (500 kHz–1.4 MHz); enables multi-phase operation with 0° or 180° phase shift. |
| RT | Frequency setting | GND = 600 kHz, VIN = 1.2 MHz; resistor-to-GND allows programmable frequency (500 kHz–1.4 MHz). |
| TRK | Voltage tracking input | 0–600 mV range; enables coordinated startup with master rail (e.g., FPGA core and I/O supplies). |
| FB | Feedback sense | Internally tied to 3.3 V output - no external divider required for this fixed-voltage variant. |
| PGND (6,7,8) | Power ground | Low-impedance return path for high di/dt switch node current; must connect directly to output capacitor ground. |
| SW (9,10,11) | Switch node output | Drives external inductor; shared among three pins to reduce parasitic inductance and improve EMI performance. |
| PVIN (12,13) | Power input | High-current input rail connection; bypass capacitor required between PVIN and PGND. |
| VIN (14) | Bias supply | Provides internal circuitry bias; decoupled via 10 Ω resistor and 0.1 µF capacitor to GND. |
| EN (15) | Precision enable | 1.2 V threshold with 100 mV hysteresis; internal 1 MΩ pull-down prevents floating-induced turn-on. |
| PGOOD (16) | Power-good indicator | Open-drain output asserting when FB is within ±10% of 0.6 V reference - signals stable 3.3 V regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated soft start | 2048 clock cycles - limits inrush current during startup and prevents output overshoot on cold boot. |
| Start-up into precharged output | Prevents reverse inductor current - avoids discharging pre-biased 3.3 V rails (e.g., hot-swap or rail sequencing). |
| Current mode control | Fast transient response (<15 µs recovery for 0.5 A→3.5 A load step) - maintains regulation under dynamic CPU/FPGA loads. |
| Internal compensation | No external compensation components needed - simplifies layout and accelerates design cycle for 3.3 V PoL use. |
| Hiccup-mode overcurrent protection | 10 consecutive current-limit events trigger 4096-cycle shutdown/restart cycle - protects against sustained short-circuit faults. |
Applications
| Industrial PLC I/O Modules | 5G Small Cell Baseband Power |
|---|---|
Use Scenario: Powering isolated digital I/O channels and analog front-end ADCs in harsh factory environments. IC Role / Device Role / Timing Role: Primary 3.3 V point-of-load regulator supplying microcontroller peripherals and level-shifted communication interfaces. Use Value: 4 A capability supports multiple isolated channels; thermal robustness (−40°C to +125°C) ensures reliability in uncooled enclosures. |
Use Scenario: Delivering clean, sequenced 3.3 V to FPGA fabric and SerDes transceivers in compact 5G radio units. IC Role / Device Role / Timing Role: Synchronized 1.2 MHz buck converter enabling low-noise, low-ripple power for high-speed data paths. Use Value: SYNC pin allows phase alignment with other rails to minimize beat frequencies; TRK enables coordinated startup with 1.2 V core supply. |
| Automotive Infotainment Head Units | Network Switch ASIC Core Supply |
Use Scenario: Regulating 3.3 V for display interface controllers and audio codecs in AEC-Q200–aligned infotainment systems. IC Role / Device Role / Timing Role: Fixed-output buck regulator providing stable voltage under wide-input automotive transients (cold crank, load dump). Use Value: UVLO (2.5 V) and OVP (0.66 V FB threshold) protect against battery anomalies; LFCSP package withstands mechanical shock/vibration. |
Use Scenario: Supplying 3.3 V to multi-gigabit Ethernet PHYs and packet buffer memory in enterprise switches. IC Role / Device Role / Timing Role: High-efficiency, low-noise DC/DC stage minimizing thermal footprint in dense 1U chassis designs. Use Value: 43/29 mΩ FETs achieve >93% efficiency at 3.3 V/3 A, reducing heatsink requirements; 100% duty cycle supports low-dropout operation during brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS54332DDA | 3 A max output, 3.5–28 V input, adjustable only, no TRK or SYNC | Lacks voltage tracking and synchronization - unsuitable for multi-rail sequencing or noise-sensitive RF systems | Choose if cost sensitivity outweighs 3.3 V fixed-output convenience and advanced control features. |
| MP2315DJ-LF-Z | 3 A max output, 4.5–28 V input, fixed 3.3 V option, no PGOOD or TRK | No power-good signaling or tracking - limits use in safety-critical or coordinated-power systems | Select only for simple, non-sequenced 3.3 V loads where thermal derating below 4 A is acceptable. |
Compared with TPS54332DDA and MP2315DJ-LF-Z, ADP2164ACPZ-3.3-R7 uniquely delivers 4 A at 3.3 V with full sequencing support (TRK, PGOOD, EN), synchronization, and industrial temperature range - making it the only choice for high-density, multi-rail embedded systems requiring guaranteed 3.3 V delivery.
Availability
ADP2164ACPZ-3.3-R7 is available at Aetrix Electronics and suitable for industrial PLCs, 5G small cells, automotive infotainment head units, network switch ASICs, and FPGA-based edge computing platforms requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ADP2164ACPZ-3.3-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 ADP2164ACPZ-3.3-R7 belongs to Analog Devices' high-efficiency, high-current DC/DC regulator product line, designed specifically for space-constrained point-of-load applications demanding precision, reliability, and advanced power management features.
FAQ
What is the maximum output current of the ADP2164ACPZ-3.3-R7?
The ADP2164ACPZ-3.3-R7 delivers up to 4 A continuous output current at 3.3 V under typical thermal conditions (θJA = 38.3°C/W, 2-layer board). Derating applies above +85°C ambient or with reduced airflow; full 4 A is maintained up to +125°C junction temperature with proper PCB thermal design using the exposed pad.
Does the ADP2164ACPZ-3.3-R7 require external feedback resistors?
No. The ADP2164ACPZ-3.3-R7 is a fixed-output variant: its internal feedback network is trimmed to regulate precisely at 3.3 V, so the FB pin is internally connected to the output. External resistors are unnecessary - simplifying layout and eliminating resistor tolerance errors that affect accuracy.
Can the ADP2164ACPZ-3.3-R7 synchronize to an external clock?
Yes. The ADP2164ACPZ-3.3-R7 accepts an external clock signal on the SYNC pin across 500 kHz to 1.4 MHz. When RT is tied to VIN, switching occurs 180° out of phase; when RT is grounded or resistor-connected, it operates in phase - enabling ripple cancellation in multi-phase configurations.
What protection features does the ADP2164ACPZ-3.3-R7 include?
The ADP2164ACPZ-3.3-R7 integrates undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), thermal shutdown, and hiccup-mode fault recovery. OVP triggers at 0.66 V on FB (≈3.63 V out), OCP limits peak switch current to 6.2 A, and thermal shutdown activates at 140°C with 15°C hysteresis.
Is the ADP2164ACPZ-3.3-R7 suitable for automotive applications?
The ADP2164ACPZ-3.3-R7 operates across −40°C to +125°C junction temperature and meets key automotive stress requirements (e.g., UVLO, OVP, thermal shutdown), but it is not AEC-Q200 qualified. For production automotive ECUs, confirm qualification status with Analog Devices; for prototyping or non-safety-critical infotainment, it is widely deployed with appropriate system-level validation.
ADP2164ACPZ-3.3-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 4A
- Frequency - Switching:
- 500kHz ~ 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LFCSP (4x4)
ADP2164ACPZ-3.3-R7 FAQ
1.How can I place an order for ADP2164ACPZ-3.3-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2164ACPZ-3.3-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 ADP2164ACPZ-3.3-R7 reliable?
The price and inventory of ADP2164ACPZ-3.3-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2164ACPZ-3.3-R7 is usually 5 days.
3.What payment methods are accepted for ADP2164ACPZ-3.3-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2164ACPZ-3.3-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2164ACPZ-3.3-R7?
ADP2164ACPZ-3.3-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2164ACPZ-3.3-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 ADP2164ACPZ-3.3-R7?
For technical support, including ADP2164ACPZ-3.3-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2164ACPZ-3.3-R7 requirements.
6.How does Aetrix verify that ADP2164ACPZ-3.3-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2164ACPZ-3.3-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 ADP2164ACPZ-3.3-R7 meets industry standards.
7.What is the process for return or replacement of ADP2164ACPZ-3.3-R7?
All ADP2164ACPZ-3.3-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2164ACPZ-3.3-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 ADP2164ACPZ-3.3-R7 part is unused and in its original packaging.
Return procedure for ADP2164ACPZ-3.3-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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