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Analog Devices Inc. ADP2164ACPZ-R7
- Part No.:
- ADP2164ACPZ-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-WQFN Exposed Pad, CSP
- Datasheet:
-
ADP2164ACPZ-R7.pdf
- Description:
- IC REG BUCK ADJ 4A 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,770
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Product details
Overview
ADP2164ACPZ-R7 from Analog Devices is a 4 A, synchronous step-down DC-to-DC regulator in a 4 mm × 4 mm LFCSP package, operating from 2.7 V to 6.5 V input and delivering adjustable output from 0.6 V to VIN with ±1.5% accuracy. It integrates 43 mΩ high-side and 29 mΩ low-side MOSFETs, supports fixed (600 kHz/1.2 MHz) or adjustable (500 kHz–1.4 MHz) switching frequency, and features power-good output, voltage tracking, and precision enable for point-of-load conversion in communications and industrial systems.
For engineers reviewing the ADP2164ACPZ-R7 datasheet, ADP2164ACPZ-R7 pinout, ADP2164ACPZ-R7 application, or ADP2164ACPZ-R7 equivalent, key selection considerations include its 4 A continuous output capability, 16-lead LFCSP thermal performance (θJA = 38.3°C/W), current-mode control architecture, integrated soft start, and synchronization support for multi-rail noise reduction.
Technical Context
The ADP2164ACPZ-R7 employs a fixed-frequency peak current-mode PWM control scheme with internal slope compensation to ensure stability at duty cycles ≥50%. Its transconductance error amplifier compares FB voltage against a 0.6 V reference, generating COMP voltage that sets peak inductor current.
It implements dual protection logic: hiccup-mode overcurrent response triggered after ten consecutive 6.2 A peak current limit events, and thermal shutdown at 140°C with 15°C hysteresis. The device starts into precharged outputs and supports coincident/ratiometric voltage tracking via the TRK pin with ±15 mV offset tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 4 A continuous - supports high-density POL rails without external current sharing. |
| Input Voltage Range | 2.7 V to 6.5 V - compatible with single-cell Li-ion, USB PD, and intermediate bus architectures. |
| Output Voltage Range | 0.6 V to VIN - enables core voltage regulation down to sub-1 V for modern SoCs and FPGAs. |
| Switching Frequency | 500 kHz to 1.4 MHz adjustable - allows optimization of inductor size, efficiency, and EMI profile. |
| Feedback Accuracy | ±1.5% over −40°C to +125°C - ensures tight output regulation across automotive and industrial temperature ranges. |
| Integrated FETs | 43 mΩ P-channel / 29 mΩ N-channel - minimizes conduction loss and eliminates external MOSFET layout complexity. |
| Power-Good Output | Open-drain with 16-cycle deglitch and ±10% window - provides reliable system sequencing and fault detection. |
Pinout & Package
ADP2164ACPZ-R7 is housed in a thermally enhanced 16-lead, 4 mm × 4 mm LFCSP package with exposed pad (EPAD) soldered to PCB ground for optimal thermal dissipation (θJA = 38.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SYNC | Synchronization input | Accepts external clock (500 kHz–1.4 MHz); phase alignment (0° or 180°) determined by RT pin connection. |
| RT | Frequency setting | GND = 600 kHz, VIN = 1.2 MHz, resistor-to-GND = programmable 500 kHz–1.4 MHz. |
| TRK | Voltage tracking input | Enables ratiometric or coincident startup with master rail; ±15 mV offset ensures accurate tracking. |
| FB | Feedback sense input | Monitors output via resistor divider; 0.6 V reference with 0.1 µA bias current limits divider error. |
| SW | Switch node output | Drives external inductor; handles full 4 A load current with low-loss transitions due to integrated FETs. |
| EN | Precision enable | 1.2 V threshold with 100 mV hysteresis and 1 MΩ pull-down - enables robust power sequencing. |
| PGOOD | Power-good indicator | Open-drain output asserts high when FB is within ±10%; 16-cycle deglitch prevents false triggers. |
Key Features
| Feature | Design Value |
|---|---|
| Current-mode PWM control | Delivers fast transient response and inherent cycle-by-cycle current limiting without external sensing. |
| Integrated soft start | 2048-clock-cycle ramp prevents inrush current; supports safe startup into precharged outputs. |
| Voltage tracking input (TRK) | Enables synchronized power-up of multiple rails - critical for FPGA, ASIC, and multi-core processor sequencing. |
| 100% duty cycle operation | Maintains regulation under low dropout conditions - essential for battery-powered systems near end-of-life. |
| Comprehensive protection suite | UVLO (2.5 V fall), OVP (0.66 V FB threshold), OCP (6.2 A peak), thermal shutdown (140°C) - reduces system-level fault handling burden. |
Applications
| Communications Baseband | Industrial PLC I/O Module |
|---|---|
Use Scenario: Powering FPGA fabric and transceiver banks in 5G small cell baseband units requiring tight voltage tolerance and low noise. IC Role / Device Role / Timing Role: Primary POL regulator delivering 1.2 V @ 4 A with synchronized switching to suppress beat frequencies across multiple rails. Use Value: 1.2 MHz operation enables compact 0.8 µH inductors; integrated soft start and tracking ensure glitch-free FPGA configuration sequence. |
Use Scenario: Supplying isolated analog front-end ADCs and digital I/O drivers in modular PLC backplanes with wide ambient temperature range. IC Role / Device Role / Timing Role: High-efficiency buck converter regulating 3.3 V or 2.5 V from 5 V intermediate bus, leveraging ±1.5% accuracy and thermal shutdown. Use Value: 38.3°C/W θJA and exposed pad allow operation up to +85°C ambient without derating; UVLO prevents brownout-induced firmware corruption. |
| Consumer Audio SoC | Test & Measurement Instrumentation |
Use Scenario: Generating clean 1.0 V core supply for high-performance audio DSPs in portable wireless speakers with battery input. IC Role / Device Role / Timing Role: Adjustable-output buck regulator supporting 0.6 V–VIN range, using EN pin for controlled wake/sleep sequencing. Use Value: 43/29 mΩ FETs achieve >92% efficiency at 1 A–4 A loads; low quiescent current (895 µA) extends battery runtime. |
Use Scenario: Providing stable 1.8 V and 2.5 V supplies to precision DACs, op-amps, and reference buffers in benchtop multimeters and signal analyzers. IC Role / Device Role / Timing Role: Dual-rail POL solution using TRK pin for ratiometric startup and PGOOD for interlock signaling to microcontroller. Use Value: ±15 mV TRK-to-FB offset ensures <0.5% tracking error; internal compensation eliminates loop tuning effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS544B20RJER | 4 A, 1.5 V to 18 V input, 500 kHz–2.2 MHz sync range, 0.6 V reference, but requires external compensation. | Wider input range suits 12 V intermediate buses; higher max frequency enables smaller magnetics but increases EMI risk. | Select when input exceeds 6.5 V or when design requires >1.4 MHz switching; verify loop stability with external compensation network. |
| MP2315GJ-Z | 4 A, 4.5 V to 26 V input, fixed 500 kHz, no SYNC/TRK/PGOOD, ±2% FB accuracy, 100 mΩ/60 mΩ FETs. | Lacks tracking, synchronization, and precision enable - suitable only for simple, cost-sensitive non-sequenced rails. | Choose only for basic 5 V–12 V input applications where advanced features are unnecessary and lower BOM cost is prioritized. |
Compared with TPS544B20RJER and MP2315GJ-Z, ADP2164ACPZ-R7 delivers superior thermal performance in compact LFCSP, tighter feedback accuracy, and integrated sequencing features - making it optimal for space-constrained, multi-rail, and temperature-critical designs.
Availability
ADP2164ACPZ-R7 is available at Aetrix Electronics and suitable for communications infrastructure, industrial automation, and consumer electronics applications requiring stable component supply, high reliability, and long-term manufacturability.
Supply support for ADP2164ACPZ-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, communications, and automotive markets.
The ADP2164ACPZ-R7 belongs to Analog Devices' high-efficiency, high-current DC-to-DC regulator product line, designed specifically for demanding point-of-load applications where thermal density, sequencing integrity, and wide-input flexibility are critical.
FAQ
What is the maximum junction temperature and thermal shutdown behavior of the ADP2164ACPZ-R7?
The ADP2164ACPZ-R7 activates thermal shutdown at 140°C junction temperature and remains latched off until temperature falls below 125°C due to 15°C hysteresis. During shutdown, both high-side and low-side FETs turn off. Upon recovery, the device initiates integrated soft start. This behavior protects against sustained overload or poor PCB thermal design while ensuring safe restart after cooling.
Can the ADP2164ACPZ-R7 be used to regulate output voltages below 1.0 V, and what accuracy is maintained?
Yes, the ADP2164ACPZ-R7 supports output voltages as low as 0.6 V using an external resistor divider on the FB pin. Its feedback reference is guaranteed at 0.591 V to 0.609 V over −40°C to +125°C, enabling ±1.5% output accuracy even at sub-1 V levels - critical for powering advanced processor cores and low-voltage memory interfaces.
How does the ADP2164ACPZ-R7 handle startup into a precharged output capacitor?
The ADP2164ACPZ-R7 prevents reverse inductor current during startup into a precharged output by holding the low-side FET off until the soft start voltage exceeds the FB pin voltage. This avoids discharging the output capacitor and ensures monotonic, glitch-free voltage ramp - essential for systems with hot-swap or backup power requirements.
What are the exact pin connections required to configure the ADP2164ACPZ-R7 for 1.2 MHz fixed-frequency operation with in-phase synchronization?
To configure the ADP2164ACPZ-R7 for 1.2 MHz fixed-frequency operation with in-phase synchronization, connect the RT pin directly to VIN and drive the SYNC pin with an external 1.2 MHz clock. The device will lock to the external clock and operate in phase. No additional resistors or dividers are needed - this configuration is explicitly validated in the datasheet's oscillator and synchronization section.
Does the ADP2164ACPZ-R7 support output voltage tracking, and how is the TRK pin implemented?
Yes, the ADP2164ACPZ-R7 supports both coincident and ratiometric voltage tracking via its TRK pin. When driven by a resistor divider from a master rail, the TRK pin biases the error amplifier to force the slave output to track the master. The TRK-to-FB offset is tightly controlled at ±15 mV, ensuring tracking accuracy better than 0.5% - verified in Figure 28 of the datasheet.
ADP2164ACPZ-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:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 6.5V
- 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-R7 FAQ
1.How can I place an order for ADP2164ACPZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2164ACPZ-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-R7 reliable?
The price and inventory of ADP2164ACPZ-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-R7 is usually 5 days.
3.What payment methods are accepted for ADP2164ACPZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2164ACPZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2164ACPZ-R7?
ADP2164ACPZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2164ACPZ-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-R7?
For technical support, including ADP2164ACPZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2164ACPZ-R7 requirements.
6.How does Aetrix verify that ADP2164ACPZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2164ACPZ-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-R7 meets industry standards.
7.What is the process for return or replacement of ADP2164ACPZ-R7?
All ADP2164ACPZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2164ACPZ-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-R7 part is unused and in its original packaging.
Return procedure for ADP2164ACPZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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