My Inquiry
My Account
Analog Devices Inc. ADP2380AREZ
- Part No.:
- ADP2380AREZ
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
ADP2380AREZ.pdf
- Description:
- IC REG BUCK ADJ 4A 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,931
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADP2380AREZ from Analog Devices is a synchronous step-down DC-DC regulator integrating a 44 mΩ high-side MOSFET and low-side gate driver, delivering up to 4 A continuous output current with 0.6 V ±1% reference accuracy over −40°C to +125°C. It operates from 4.5 V to 20 V input, supports programmable switching frequency from 250 kHz to 1.4 MHz, and features power-good output and external compensation for point-of-load conversion in industrial and communications infrastructure.
For engineers reviewing the ADP2380AREZ datasheet, ADP2380AREZ pinout, ADP2380AREZ application, or ADP2380AREZ equivalent, key selection criteria include its 16-lead TSSOP_EP package, 180° out-of-phase synchronization capability, programmable UVLO, startup into precharged output, and compatibility with external N-channel low-side MOSFETs such as FDS6298.
Technical Context
The ADP2380AREZ uses fixed-frequency peak current-mode control with integrated high-side switch and external low-side driver, enabling precise regulation down to 0.6 V. Its internal 8 V VREG supplies bias for gate drive and analog circuitry, while bootstrap circuitry generates ~5 V between BST and SW for high-side gate turn-on.
It implements multiple protection mechanisms: hiccup-mode overcurrent protection triggered at ≥7 A peak current limit, thermal shutdown at 150°C with 25°C hysteresis, overvoltage protection at 0.7 V FB threshold, and programmable undervoltage lockout via external resistor divider on the UVLO pin.
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 5 V, 12 V, and 18 V systems. |
| Output Current | 4 A continuous - enables single-chip intermediate rail conversion without parallel devices. |
| Reference Voltage | 0.6 V ±1% over temperature - ensures tight output voltage accuracy across −40°C to +125°C junction range. |
| Switching Frequency | 250 kHz to 1.4 MHz programmable - allows EMI optimization and inductor size reduction. |
| High-Side RDS(on) | 44 mΩ typical - minimizes conduction loss and improves efficiency at high load currents. |
| Power-Good Output | Open-drain with 95%/90% FB thresholds and deglitch timing - provides reliable sequencing signal for downstream logic. |
| Thermal Shutdown | 150°C with 25°C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
The ADP2380AREZ is housed in a 16-lead TSSOP_EP package with exposed pad for thermal dissipation. The exposed pad must be soldered to a large copper ground plane per JEDEC J-STD-020 guidelines (θJA = 39.48°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (1,2) | Power Input | Primary input supply connection; requires local ceramic bypass capacitor to PGND. |
| UVLO (3) | Undervoltage Lockout Control | External resistor divider sets enable threshold; overrides internal 4.5 V PVIN UVLO. |
| PGOOD (4) | Power-Good Status | Open-drain output indicating regulated output; requires external pull-up resistor (10–100 kΩ). |
| EN/SS (7) | Enable & Soft Start | Logic-enable input (0.5 V threshold); capacitor to GND programs soft start ramp time. |
| RT (5) | Frequency Programming | Resistor-to-GND sets switching frequency; open = 540 kHz, grounded = 290 kHz. |
| SYNC (6) | External Clock Input | Accepts 250 kHz–1.4 MHz clock; forces 180° out-of-phase operation for noise reduction. |
| FB (9) | Feedback Sense | Connects to resistor divider from VOUT; regulates output to 0.6 V reference. |
| COMP (8) | Error Amplifier Output | External RC network connects COMP to FB for loop compensation tuning. |
| LD (13) | Low-Side Gate Driver | Drives external N-MOSFET gate; includes break-before-make logic to prevent shoot-through. |
| SW (14,15) | Switch Node | Connects to inductor; carries high di/dt switching current; requires low-inductance layout. |
| BST (16) | Bootstrap Supply | Capacitor between BST and SW provides gate drive voltage for high-side MOSFET. |
| VREG (12) | Internal Regulator Output | 8 V ±0.3 V supply for internal circuits; requires 1 µF ceramic capacitor to GND. |
| PGND (11) | Power Ground | Return path for high-current switching paths; separate from analog GND (Pin 10) for noise isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Switching Frequency | 250 kHz–1.4 MHz via RT resistor or SYNC pin - enables EMI compliance and layout flexibility. |
| Startup into Precharged Output | Prevents reverse current flow during hot-plug scenarios - eliminates need for external reverse-blocking diode. |
| External Compensation | COMP pin allows full control of loop stability - supports wide range of output capacitors and inductors. |
| 180° Out-of-Phase Synchronization | Reduces input ripple current when multiple ADP2380AREZ units operate in parallel - lowers bulk capacitor stress. |
| Hiccup-Mode Overcurrent Protection | Enters 4096-cycle shutdown after 10 consecutive current-limit events - prevents thermal runaway under short-circuit conditions. |
Applications
| Communications Infrastructure | Industrial PLC Systems |
|---|---|
Use Scenario: Powering FPGA I/O banks and transceiver cores in 5G base station remote radio units. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 12 V intermediate rail to 1.2 V/1.8 V/3.3 V for digital logic and SerDes interfaces. Use Value: 4 A output capacity and 0.6 V reference accuracy ensure stable core voltage under dynamic load transients up to 4 A/µs. | Use Scenario: Supplying isolated microcontroller, ADC, and digital I/O rails in modular automation controllers. IC Role / Device Role / Timing Role: High-efficiency buck converter for 3.3 V and 5 V system rails operating continuously in harsh ambient temperatures. Use Value: −40°C to +125°C operation and thermal shutdown with hysteresis guarantee reliability in uncooled enclosures. |
| Networking Switches | Medical Imaging Subsystems |
Use Scenario: Generating 1.0 V CPU core voltage for ARM-based network processors in Layer 3 switches. IC Role / Device Role / Timing Role: Synchronous buck controller driving external low-side MOSFET to achieve >90% efficiency at 4 A load. Use Value: Programmable frequency and external compensation allow optimization for low-noise operation near sensitive PHY circuitry. | Use Scenario: Providing clean, sequenced 1.2 V and 2.5 V supplies for high-speed data acquisition ASICs in ultrasound front-ends. IC Role / Device Role / Timing Role: Regulator with PGOOD output enabling strict power-up sequencing required by imaging SoCs. Use Value: 1024-cycle PGOOD assertion delay and 95%/90% FB thresholds ensure robust detection of valid output regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5119MTX/NOPB | Requires external high- and low-side MOSFETs; no integrated high-side switch; wider input range (3 V to 100 V). | Suitable for higher-voltage industrial applications where 20 V max input is insufficient. | Select LM5119MTX/NOPB when input exceeds 20 V or when discrete MOSFET optimization is required. |
| TPS544B20RJTR | Integrated dual MOSFETs; fixed 500 kHz frequency; no external low-side driver; smaller 4 mm × 4 mm QFN package. | Better suited for space-constrained designs where board area is critical and 4 A output is sufficient. | Choose TPS544B20RJTR for compact, fully integrated solutions without need for external low-side FET selection. |
Compared with LM5119MTX/NOPB and TPS544B20RJTR, the ADP2380AREZ uniquely combines an integrated 44 mΩ high-side MOSFET with a dedicated low-side gate driver output, enabling flexible external FET selection for optimized efficiency, thermal performance, or cost-while maintaining full programmability of frequency, UVLO, and soft start.
Availability
ADP2380AREZ is available at Aetrix Electronics and suitable for communications infrastructure, industrial PLC systems, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADP2380AREZ 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 automation, and communications markets.
The ADP2380AREZ belongs to Analog Devices' high-efficiency DC-DC controller product line, designed specifically for flexible, high-current point-of-load conversion in thermally demanding environments.
FAQ
What is the maximum output current supported by the ADP2380AREZ?
The ADP2380AREZ delivers up to 4 A of continuous output current under specified thermal conditions. This rating assumes proper PCB layout with the exposed pad soldered to a large copper ground plane (θJA = 39.48°C/W), ambient temperature ≤85°C, and appropriate external low-side MOSFET selection (e.g., FDS6298). Peak current limit is 7 A, but sustained operation above 4 A requires derating based on thermal performance.
Does the ADP2380AREZ integrate both high-side and low-side power switches?
No, the ADP2380AREZ integrates only a 44 mΩ high-side N-channel MOSFET. It provides a dedicated low-side gate driver output (LD pin) to control an external N-channel MOSFET. This architecture allows designers to select optimal low-side FETs for specific efficiency, thermal, or cost requirements-unlike fully integrated buck converters that fix both switches.
How is the switching frequency programmed on the ADP2380AREZ?
The ADP2380AREZ switching frequency is programmed via the RT pin: grounding RT sets 290 kHz, leaving RT open sets 540 kHz, and connecting a resistor (e.g., 100 kΩ for 500 kHz) between RT and GND enables precise adjustment from 250 kHz to 1.4 MHz using fSW = 57,600 / ROSC (kHz). The SYNC pin also accepts external clocks in the same frequency range for synchronized multi-rail operation.
Can the ADP2380AREZ start up safely when the output is already precharged?
Yes, the ADP2380AREZ supports startup into a precharged output. When enabled, it monitors the FB pin voltage and prevents the low-side MOSFET from turning on until the internal soft-start voltage exceeds the precharged output level-avoiding reverse current flow and eliminating the need for external reverse-blocking diodes in hot-swap applications.
What protection features does the ADP2380AREZ include?
The ADP2380AREZ includes overcurrent protection (hiccup mode at ≥7 A peak), overvoltage protection (shuts down if FB ≥0.7 V), thermal shutdown (150°C with 25°C hysteresis), programmable undervoltage lockout (via UVLO pin), and negative current-limit protection (20 mV threshold on low-side FET). All protections are internally implemented without requiring external components.
ADP2380AREZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tube
- 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:
- 4A
- Frequency - Switching:
- 250kHz ~ 1.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
ADP2380AREZ FAQ
1.How can I place an order for ADP2380AREZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP2380AREZ 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 ADP2380AREZ reliable?
The price and inventory of ADP2380AREZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP2380AREZ is usually 5 days.
3.What payment methods are accepted for ADP2380AREZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP2380AREZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP2380AREZ?
ADP2380AREZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP2380AREZ 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 ADP2380AREZ?
For technical support, including ADP2380AREZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP2380AREZ requirements.
6.How does Aetrix verify that ADP2380AREZ is sourced from the original manufacturer or authorized distributors?
All ADP2380AREZ 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 ADP2380AREZ meets industry standards.
7.What is the process for return or replacement of ADP2380AREZ?
All ADP2380AREZ units undergo pre-shipment inspection (PSI). If there is an issue with ADP2380AREZ, 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 ADP2380AREZ part is unused and in its original packaging.
Return procedure for ADP2380AREZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADP2380AREZ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
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…
