My Inquiry
My Account
Analog Devices Inc. LTC3886EUKG#PBF
- Part No.:
- LTC3886EUKG#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 52-WFQFN, 46 Leads, Exposed Pad
- Datasheet:
-
LTC3886EUKG#PBF.pdf
- Description:
- IC REG CTRLR BUCK PMBUS 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,632
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC3886EUKG#PBF from Analog Devices is a dual-output, 60V input PolyPhase synchronous step-down DC/DC controller with PMBus/I²C digital power system management. It delivers precise voltage regulation (±0.5% over temperature), integrated 16-bit ADC and 12-bit DAC telemetry, and supports up to 6-phase current sharing for high-current point-of-load applications in telecom and datacom systems.
For engineers reviewing the LTC3886EUKG#PBF datasheet, LTC3886EUKG#PBF pinout, LTC3886EUKG#PBF application, or LTC3886EUKG#PBF equivalent, key selection considerations include its 4.5V–60V input range, dual independent 0.5V–13.8V output capability, programmable loop compensation, internal EEPROM with ECC, and fault logging via PMBus-compliant interface.
Technical Context
The LTC3886EUKG#PBF implements constant-frequency current-mode control with analog PWM loops per channel, enabling accurate PolyPhase current sharing across up to six phases. Its dual-channel architecture supports independent soft-start, sequencing, margining, and fault management-including OV/UV/OC detection with configurable response timing.
Digital supervision is handled via a PMBus 1.3–compliant I²C interface with CRC protection, ALERT masking, and status registers. The device integrates high-side current sense amplifiers, internal 3.3V/2.5V LDOs, and an EXTVCC regulator supporting up to 14V input for optimized efficiency and thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - enables direct connection to 48V telecom rails and industrial supplies without pre-regulation. |
| Output Voltage Range | 0.5V to 13.8V per channel - supports core logic, FPGA, ASIC, and memory supply requirements. |
| Output Accuracy | ±0.5% over temperature - ensures stable voltage delivery under thermal stress without external calibration. |
| ADC/DAC Resolution | 16-bit ADC / 12-bit DAC - provides high-fidelity telemetry readback of VIN, VOUT, IOUT, temperature, and fault states. |
| Switching Frequency | 100kHz to 750kHz - allows optimization of size, efficiency, and transient response for diverse load profiles. |
| Package | 52-lead QFN (7mm × 8mm) - offers low thermal resistance (θJC = 2°C/W) and exposed GND pad for robust thermal management. |
| EEPROM Retention | 10 years at TJ < 125°C - stores configuration, fault logs, and calibration data with ECC for field reliability. |
Pinout & Package
Package: 52-lead (7mm × 8mm) plastic QFN with exposed thermal pad (Pin 53 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main power input | Accepts 4.5V–60V input; powers internal regulators and gate drivers. |
| TG0/TG1 | Top gate drive outputs | Drive high-side N-MOSFET gates with 30ns rise/fall time and 10ns dead-time control. |
| BG0/BG1 | Bottom gate drive outputs | Drive low-side N-MOSFET gates with 20ns rise/fall time and 30ns dead-time control. |
| VSENSE0+/VSENSE0− VSENSE1+/VSENSE1− | Differential output voltage sense inputs | Enable Kelvin sensing for ±0.5% accuracy; support remote feedback and dynamic margining. |
| ISENSE0+/ISENSE0− ISENSE1+/ISENSE1− | Differential current sense inputs | Interface with low-value shunts or DCR networks for real-time IOUT telemetry and OC protection. |
| SDA/SCL | PMBus I²C bidirectional bus | Supports standard/fast-mode (10–400kHz) communication with CRC, timeout, and ALERT interrupt. |
| PGOOD0/PGOOD1 | Open-drain power-good indicators | Assert after soft-start completion and voltage stabilization; configurable delay and fault masking. |
| FAULT0/FAULT1 | Open-drain fault indicators | Signal channel-specific faults (OV/UV/OC/OT); support event-based sequencing and fault propagation. |
| SHARE_CLK | PolyPhase clock output | Drives external phase-sync clocks for multi-controller synchronization up to 6 phases. |
| EXTVCC | External bias supply input | Accepts 4.5V–14V to power INTVCC regulator, reducing die temperature and improving efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PWM controllers | Enables fully decoupled regulation of two distinct power domains (e.g., core + I/O) with separate sequencing and fault handling. |
| Integrated 16-bit ADC telemetry | Measures VIN, VOUT0/1, IOUT0/1, chip temperature, and external thermistor voltage with <±1.5% TUE on current readback. |
| Programmable loop compensation | Configurable gm amplifier gain (1.0–5.76 mmho) and RITHR resistor (0–62 kΩ) via PMBus or RCONFIG pins for stable transient response. |
| Internal EEPROM with ECC | Stores user configuration, fault logs, and calibration data; supports STORE/RESTORE commands and retains data for 10 years at ≤125°C junction. |
| Discharge-on-shutdown (LTC3886-1 variant only) | Not applicable to LTC3886EUKG#PBF - this part is the base LTC3886, not the -1 version with sequenced-off discharge feature. |
Applications
| Telecom Line Cards | Data Center Power Shelf |
|---|---|
Use Scenario: Regulating 12V and 5V rails for packet processing ASICs and SerDes transceivers in 48V-powered line cards. IC Role / Device Role / Timing Role: Dual-output controller managing independent power domains with synchronized PolyPhase operation and PMBus telemetry for system-level power monitoring. Use Value: Enables real-time current/voltage telemetry, dynamic margining, and fault logging-critical for carrier-grade reliability and remote diagnostics. | Use Scenario: Providing tightly regulated 3.3V and 1.8V outputs for server motherboard VRMs in modular power shelf architectures. IC Role / Device Role / Timing Role: Digital power controller executing precise soft-start, sequencing, and phase interleaving across multiple output stages. Use Value: Reduces component count by integrating gate drivers, ADC/DAC, EEPROM, and fault management-eliminating need for discrete supervisors and telemetry ICs. |
| Industrial PLC Backplanes | High-Performance Test Equipment |
Use Scenario: Delivering stable 24V and 5V supplies to I/O modules and microcontrollers in harsh industrial environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Robust dual-channel controller with –40°C to 125°C operation, UV/OV/OC fault protection, and internal temperature sensing. Use Value: Ensures uninterrupted operation through built-in overtemperature shutdown and EEPROM-stored fault history for predictive maintenance. | Use Scenario: Generating ultra-stable, low-noise 1.2V and 0.9V supplies for high-speed ADCs/DACs and RF signal chain components during automated test. IC Role / Device Role / Timing Role: Precision voltage controller with ±0.5% output accuracy, programmable soft-start ramp, and margining for production calibration and validation. Use Value: Supports automated test sequences via PMBus commands-enabling remote voltage sweep, current limit adjustment, and fault injection testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output digital power controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC3887EUKG#PBF | Single-output, 60V controller with identical PMBus interface, ADC/DAC, and EEPROM-but lacks second output channel and independent PGOOD/FAULT pins. | Suitable only for single-rail systems; cannot replace dual-output functionality without redesign. | Select when only one regulated output is required and board space or BOM cost must be minimized. |
| TPS53689RTAT | Texas Instruments dual-output 60V controller with PMBus 1.2, but no internal EEPROM, lower ADC resolution (12-bit), and no integrated EXTVCC regulator. | Lacks nonvolatile configuration storage and advanced fault logging; requires external supervisor for persistent settings. | Choose for cost-sensitive applications where EEPROM retention and full telemetry logging are not mandatory. |
Compared with LTC3886EUKG#PBF, LTC3887EUKG#PBF reduces channel count and complexity but sacrifices independent dual-rail control, while TPS53689RTAT offers competitive PMBus functionality at lower integration-requiring external components for EEPROM, EXTVCC, and precision telemetry.
Availability
LTC3886EUKG#PBF is available at Aetrix Electronics and suitable for telecom line cards, data center power shelves, and industrial PLC backplanes requiring stable component supply, long-term lifecycle support, and digital power management capabilities.
Supply support for LTC3886EUKG#PBF 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC3886 product line was designed specifically for digitally managed, high-efficiency, multi-phase DC/DC conversion in demanding infrastructure applications-emphasizing telemetry fidelity, fault resilience, and seamless integration with LTpowerPlay® development tools.
FAQ
What is the operating temperature range for the LTC3886EUKG#PBF?
The LTC3886EUKG#PBF is specified for operation from –40°C to 125°C junction temperature. It is guaranteed over this full range (E-grade), with thermal performance supported by θJA = 31°C/W and θJC = 2°C/W. The exposed pad (Pin 53) must be soldered to a PCB ground plane to maintain thermal integrity under full load.
Does the LTC3886EUKG#PBF support both continuous and discontinuous conduction modes?
Yes, the LTC3886EUKG#PBF can be configured for either continuous inductor current mode or discontinuous (pulse-skipping) mode via PMBus command or RCONFIG pin settings. This flexibility allows optimization for light-load efficiency or ripple-sensitive applications without hardware changes.
How does the LTC3886EUKG#PBF handle fault conditions such as overvoltage or overcurrent?
The LTC3886EUKG#PBF provides per-channel OV/UV/OC fault detection with programmable thresholds and response timing. Upon detection, it asserts dedicated FAULT0/FAULT1 pins, logs events to internal EEPROM, and can trigger shutdown or soft-stop based on PMBus-configured fault response policies-ensuring system-level safety and diagnostics.
Can the LTC3886EUKG#PBF be used without the PMBus interface?
Yes, the LTC3886EUKG#PBF supports full analog configuration via external resistors on RCONFIG pins for output voltage, switching frequency, phase count, and device address. PMBus is optional for runtime reconfiguration, telemetry, and EEPROM storage-but not required for basic operation.
What development tools are compatible with the LTC3886EUKG#PBF?
The LTC3886EUKG#PBF is fully supported by Analog Devices' LTpowerPlay® GUI software, which enables real-time voltage/current monitoring, loop compensation tuning, fault simulation, configuration storage, and firmware updates via USB-to-PMBus adapter. No custom driver installation is required.
LTC3886EUKG#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PolyPhase®
- Package/Case:
- 52-WFQFN, 46 Leads, Exposed Pad
- Packaging:
- Tube
- 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 ~ 60V
- Frequency - Switching:
- 100kHz ~ 750kHz
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- Yes
- Clock Sync:
- Yes
- Serial Interfaces:
- I2C, PMBus
- Control Features:
- Enable, Frequency Control, Phase Control, Power Good
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-QFN (7x8)
LTC3886EUKG#PBF FAQ
1.How can I place an order for LTC3886EUKG#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3886EUKG#PBF 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 LTC3886EUKG#PBF reliable?
The price and inventory of LTC3886EUKG#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3886EUKG#PBF is usually 5 days.
3.What payment methods are accepted for LTC3886EUKG#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3886EUKG#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3886EUKG#PBF?
LTC3886EUKG#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3886EUKG#PBF 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 LTC3886EUKG#PBF?
For technical support, including LTC3886EUKG#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3886EUKG#PBF requirements.
6.How does Aetrix verify that LTC3886EUKG#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3886EUKG#PBF 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 LTC3886EUKG#PBF meets industry standards.
7.What is the process for return or replacement of LTC3886EUKG#PBF?
All LTC3886EUKG#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3886EUKG#PBF, 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 LTC3886EUKG#PBF part is unused and in its original packaging.
Return procedure for LTC3886EUKG#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC3886EUKG#PBF Tags
-
UCC28C45DR
Texas Instruments
-
UCC28C40DR
Texas Instruments
-
UCC28C43DR
Texas Instruments
-
ZXSC410E6TA
Diodes Incorporated
-
LM3524DMX/NOPB
Texas Instruments
-
LM3489MMX/NOPB
Texas Instruments
-
MIC2102YML-TR
Microchip Technology
-
LM5148RGYR
Texas Instruments
-
TL598CDR
Texas Instruments
-
LM5155DSSR
Texas Instruments
-
LM25085MYX/NOPB
Texas Instruments
-
UCC2813DTR-0
Texas Instruments
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…
