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Analog Devices Inc. ADP2386ACPZN-R7
- Part No.:
- ADP2386ACPZN-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 24-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADP2386ACPZN-R7.pdf
- Description:
- IC REG BUCK ADJ 6A 24LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:16,077
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Product details
Overview
ADP2386ACPZN-R7 from Analog Devices is a synchronous step-down DC-to-DC regulator with integrated 44 mΩ high-side and 11 mΩ low-side MOSFETs, delivering up to 6 A continuous output current from a 4.5 V–20 V input, supporting adjustable output voltage down to 0.6 V, and operating across −40°C to +125°C junction temperature for industrial power rail conversion.
For engineers reviewing the ADP2386ACPZN-R7 datasheet, ADP2386ACPZN-R7 pinout, ADP2386ACPZN-R7 application, or ADP2386ACPZN-R7 equivalent, key selection considerations include its peak-current-mode PWM control, external frequency programming via RT pin (200 kHz–1.4 MHz), 180° out-of-phase synchronization capability, precision enable threshold (1.17 V typ), and power-good output with 1024-cycle deglitching.
Technical Context
The ADP2386ACPZN-R7 implements a fixed-frequency, peak-current-mode PWM control architecture with internal slope compensation, enabling stable operation under wide load and input variations. Its error amplifier features 480 µS transconductance and ±75 µA sink/source capability, supporting external compensation for loop tuning across diverse output capacitor ESR/ESL profiles.
It integrates dual protection logic: hiccup-mode overcurrent response triggered after ten consecutive current-limit events, and overvoltage protection that disables both MOSFETs when FB exceeds 0.7 V, recovering only after FB falls to 0.63 V. Thermal shutdown activates at 150°C with 25°C hysteresis, ensuring safe recovery before soft-start reinitiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 20 V - supports wide-input industrial and telecom rails without pre-regulation. |
| Output Current | 6 A continuous - enables single-chip point-of-load regulation for FPGA, ASIC, and DSP core supplies. |
| Feedback Reference | 0.6 V ± 1% - allows precise low-voltage output setting (e.g., 1.2 V @ 2× resistor divider) with minimal drift over temperature. |
| Switching Frequency | 200 kHz to 1.4 MHz programmable via RT resistor - balances efficiency (lower fSW) vs. size (higher fSW) and enables EMI optimization. |
| MOSFET RDS(on) | 44 mΩ (HS) / 11 mΩ (LS) - minimizes conduction loss at full load, contributing to >90% efficiency at 5 VOUT/3 A (VIN = 12 V). |
| Enable Threshold | 1.17 V rising / 1.07 V falling - provides 100 mV hysteresis for noise-immune power sequencing in multi-rail systems. |
| Power-Good Accuracy | ±5% rising/falling hysteresis on FB - ensures reliable system reset assertion only when output is within tight regulation window. |
Pinout & Package
ADP2386ACPZN-R7 is housed in a thermally enhanced 24-lead, 4 mm × 4 mm LFCSP package with exposed GND and SW pads for low-θJA (42.6°C/W) and efficient heat dissipation in high-power density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COMP | Error amplifier output | Connects to external RC network for loop compensation-directly sets phase margin and transient response. |
| FB | Feedback voltage sense input | Monitors output via resistor divider; regulates VOUT to 0.6 V reference-enables adjustable output from 0.6 V to 90% of VIN. |
| VREG | Internal 8 V regulator output | Powers internal circuitry; requires 1 µF ceramic bypass to GND-reduces dependency on external bias supply. |
| SW | Switch node output | Drives external inductor; connects to exposed SW pad-must be routed with short/wide traces to minimize switching losses and EMI. |
| PGND | Power ground return | Low-side MOSFET source return; separate from analog GND-prevents noise coupling into control circuitry. |
| BST | Bootstrap supply for high-side gate drive | Requires 0.1 µF capacitor to SW-generates ~5 V gate drive above SW to fully enhance high-side N-MOSFET. |
| PVIN | Main power input | Accepts 4.5–20 V; connects to multiple pins and exposed pad-distributes high di/dt current with low impedance. |
| EN | Precision enable input | 1.17 V threshold with internal 5 µA pull-down-supports programmable UVLO using resistor divider for controlled startup sequencing. |
| PGOOD | Open-drain power-good indicator | Asserts high only after 1024 clock cycles in regulation-provides glitch-free system reset signaling. |
| RT | Frequency setting input | Resistor-to-GND sets fSW per fSW = 69,120 / (RRT + 15 kΩ) kHz-enables EMI spread-spectrum alignment. |
| SYNC | External clock synchronization input | Accepts 200 kHz–1.4 MHz clock; forces 180° phase shift-eliminates beat frequencies in multi-phase systems. |
| SS | Soft start timing control | Capacitor-to-GND extends ramp time; internal default = 1600 clock cycles-prevents inrush into precharged outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Peak-current-mode PWM control | Provides inherent cycle-by-cycle current limiting and fast transient response without requiring output capacitor ESR. |
| 180° out-of-phase synchronization | Enables interleaved operation with adjacent converters to reduce input/output ripple and improve thermal distribution. |
| Startup into precharged output | Prevents reverse inductor current during hot-plug scenarios-avoids discharging downstream capacitors and damaging loads. |
| Hiccup-mode overcurrent protection | Limits fault energy by disabling switching for 4096 cycles after 10 overcurrent events-protects MOSFETs and PCB during sustained overload. |
| External compensation | Allows full customization of loop bandwidth and phase margin for varied output capacitor types (polymer, MLCC, tantalum). |
| Undervoltage lockout with programmable threshold | EN pin resistor divider sets turn-on voltage independently of PVIN UVLO-enables flexible power sequencing in multi-supply systems. |
Applications
| Communications Infrastructure | Networking and Servers |
|---|---|
Use Scenario: Regulating intermediate 5 V or 3.3 V rails from 12 V backplane in 5G base station RF modules. IC Role / Device Role / Timing Role: Primary synchronous buck converter delivering 6 A to FEM power amplifiers and data converters. Use Value: High efficiency (>92% at 12 VIN/5 VOUT/3 A) reduces thermal load in compact RF enclosures; SYNC pin enables noise-free coexistence with adjacent clock domains. |
Use Scenario: Generating core voltage for network processors and switch ASICs in enterprise switches. IC Role / Device Role / Timing Role: Point-of-load regulator with precision enable and PGOOD for strict power-up sequencing with CPU and memory controllers. Use Value: 0.6 V ±1% reference and external compensation ensure <±1% output accuracy under dynamic load steps; hiccup-mode OCP prevents latch-up during traffic surges. |
| Industrial Instrumentation | Healthcare and Medical |
Use Scenario: Powering isolated ADCs, DACs, and sensor signal chains in portable test equipment. IC Role / Device Role / Timing Role: Low-noise, low-ripple buck regulator supplying analog front-end circuits with tight PSRR requirements. Use Value: Peak-current-mode control and programmable fSW allow optimization for minimal conducted EMI; SS pin enables controlled ramp into sensitive analog circuitry. |
Use Scenario: Providing regulated 1.2 V, 1.8 V, and 3.3 V supplies to FPGA-based imaging subsystems in ultrasound and MRI equipment. IC Role / Device Role / Timing Role: High-reliability DC-DC stage meeting IEC 60601 creepage/clearance and thermal safety margins. Use Value: −40°C to +125°C operation and thermal shutdown with 25°C hysteresis ensure fail-safe behavior in sealed medical enclosures; PGOOD supports FDA-mandated power monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS546B24RVFT | Higher 10 A rating, integrated PMBus interface, 4.5–18 V input, but larger 5 mm × 5 mm QFN package and no BST pin. | Targeted at digital power systems requiring telemetry and dynamic voltage scaling-not suitable where analog control simplicity is prioritized. | Select TPS546B24RVFT only if PMBus telemetry, higher current headroom, or tighter output voltage margin (±0.5%) are required. |
| MP2386DN-LF-Z | Same 6 A rating and 4.5–20 V input, but uses voltage-mode control, lacks SYNC/SS pins, and has fixed 600 kHz fSW. | Designed for cost-sensitive consumer applications; no support for external synchronization or programmable soft start. | Choose MP2386DN-LF-Z only for non-critical, fixed-frequency designs where layout simplicity outweighs EMI control and sequencing flexibility. |
Compared with TPS546B24RVFT and MP2386DN-LF-Z, ADP2386ACPZN-R7 uniquely balances analog control precision, synchronization flexibility, and thermal robustness in a compact LFCSP-making it optimal for industrial and medical PoL where reliability, noise immunity, and design adaptability are critical.
Availability
ADP2386ACPZN-R7 is available at Aetrix Electronics and suitable for communications infrastructure, industrial instrumentation, and healthcare equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADP2386ACPZN-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 ADP2386ACPZN-R7 belongs to Analog Devices' high-efficiency power management product line, engineered specifically for demanding point-of-load applications where thermal performance, noise control, and sequencing integrity are essential in space-constrained environments.
FAQ
What is the maximum output current supported by the ADP2386ACPZN-R7?
The ADP2386ACPZN-R7 delivers up to 6 A of continuous output current under typical thermal conditions (TJ ≤ 125°C) with adequate PCB copper area and airflow. Its 44 mΩ/11 mΩ MOSFET pair and 4 mm × 4 mm LFCSP package with exposed thermal pads enable this rating while maintaining efficiency >90% at mid-load points. Derating applies above 85°C ambient or with limited board copper.
Does the ADP2386ACPZN-R7 support synchronization to an external clock?
Yes, the ADP2386ACPZN-R7 supports external clock synchronization via its SYNC pin, accepting input frequencies from 200 kHz to 1.4 MHz. When synchronized, it operates in continuous conduction mode with its switching waveform precisely 180° out of phase relative to the external clock edge-critical for reducing input ripple in multi-phase or noise-sensitive systems.
How is the switching frequency programmed on the ADP2386ACPZN-R7?
The switching frequency of the ADP2386ACPZN-R7 is set by connecting a resistor between the RT pin and GND. The relationship follows fSW (kHz) = 69,120 / (RRT + 15 kΩ). For example, a 100 kΩ resistor yields ~600 kHz, while a 42.2 kΩ resistor sets ~1.2 MHz. This allows precise EMI tuning and optimization for inductor size versus efficiency trade-offs.
Can the ADP2386ACPZN-R7 safely start up into a precharged output?
Yes, the ADP2386ACPZN-R7 includes dedicated circuitry to prevent reverse inductor current during startup into a precharged output. It monitors FB voltage and holds the low-side MOSFET off until the soft-start ramp exceeds the present output voltage-ensuring no discharge of downstream capacitors and protecting sensitive loads during hot-swap or redundant supply transitions.
What protection features are integrated into the ADP2386ACPZN-R7?
The ADP2386ACPZN-R7 integrates undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP) with hiccup-mode recovery, short-circuit protection (SCP), and thermal shutdown with 25°C hysteresis. Its OVP triggers at 0.7 V on FB and recovers at 0.63 V; OCP initiates hiccup mode after ten current-limit events, disabling switching for 4096 cycles before retry.
ADP2386ACPZN-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN 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):
- 4.5V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 18V
- Current - Output:
- 6A
- Frequency - Switching:
- 200kHz ~ 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-LFCSP (4x4)
ADP2386ACPZN-R7 FAQ
1.How can I place an order for ADP2386ACPZN-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2386ACPZN-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 ADP2386ACPZN-R7 reliable?
The price and inventory of ADP2386ACPZN-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2386ACPZN-R7 is usually 5 days.
3.What payment methods are accepted for ADP2386ACPZN-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2386ACPZN-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2386ACPZN-R7?
ADP2386ACPZN-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2386ACPZN-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 ADP2386ACPZN-R7?
For technical support, including ADP2386ACPZN-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2386ACPZN-R7 requirements.
6.How does Aetrix verify that ADP2386ACPZN-R7 is sourced from the original manufacturer or authorized distributors?
All ADP2386ACPZN-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 ADP2386ACPZN-R7 meets industry standards.
7.What is the process for return or replacement of ADP2386ACPZN-R7?
All ADP2386ACPZN-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP2386ACPZN-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 ADP2386ACPZN-R7 part is unused and in its original packaging.
Return procedure for ADP2386ACPZN-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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