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Analog Devices Inc. LTC3886IUKG#TRPBF
- Part No.:
- LTC3886IUKG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 52-WFQFN, 46 Leads, Exposed Pad
- Datasheet:
-
LTC3886IUKG#TRPBF.pdf
- Description:
- IC REG CTRLR BUCK PMBUS 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,315
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Product details
Overview
LTC3886IUKG#TRPBF 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 two independent outputs (0.5–13.8V each), supports up to 6-phase current sharing, integrates 16-bit ADC and 12-bit DAC telemetry, and operates across –40°C to 125°C for telecom and industrial point-of-load applications.
For engineers reviewing the LTC3886IUKG#TRPBF datasheet, LTC3886IUKG#TRPBF pinout, LTC3886IUKG#TRPBF application, or LTC3886IUKG#TRPBF equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-chain support for high-reliability embedded power systems.
Technical Context
The LTC3886IUKG#TRPBF implements constant-frequency current-mode control with programmable loop compensation via internal error amplifiers (gm = 1.0–5.76 mmho) and external RITHR resistors (0–62 kΩ). Its dual-channel architecture enables independent voltage regulation, sequencing, margining, and fault handling per output, with dedicated FAULT0/FAULT1 pins and PGOOD0/PGOOD1 indicators.
Digital power management is enabled by a PMBus-compliant I²C interface (10–400 kHz), integrated EEPROM with ECC and fault logging, and LTpowerPlay® GUI support. The controller supports both analog current sensing (via ISENSE±) and inductor DCR sensing, with ±1.5% output current readback accuracy and ±0.5% VOUT set-point accuracy over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide-range industrial and telecom inputs without external pre-regulation |
| Output Voltage Range | 0.5V to 13.8V per channel - covers core logic, FPGA, ASIC, and memory rail requirements |
| Switching Frequency | 100kHz to 750kHz - adjustable via resistor or PMBus; enables optimization of size vs. efficiency |
| VOUT Set-Point Accuracy | ±0.5% over temperature - ensures stable voltage delivery under thermal stress in dense PCB layouts |
| Current Sensing Accuracy | ±1.5% total unadjusted error - enables precise load monitoring and OCP response in multi-phase designs |
| Telemetry Resolution | 16-bit ADC for VOUT/IOUT, 10-bit for VIN/IIN - provides high-fidelity real-time power health data for system diagnostics |
| EEPROM Retention | 10 years at TJ < 125°C - guarantees persistent configuration storage across product lifecycle without refresh |
Pinout & Package
Package: 52-lead (7mm × 8mm) plastic QFN with exposed GND pad (Pin 53), θJA = 31°C/W, rated for –40°C to 125°C junction operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TG0, TG1 | Top gate drivers | Drive N-channel MOSFET gates with 30ns rise/fall time; withstand 71V transient |
| BG0, BG1 | Bottom gate drivers | Drive synchronous rectifier FETs with 20ns rise/fall time; support 10ns dead-time control |
| VSENSE0+, VSENSE0– VSENSE1+, VSENSE1– | Output voltage feedback | Differential sensing with ±250µA input bias; enables Kelvin connection for precision regulation |
| ISENSE0+, ISENSE0– ISENSE1+, ISENSE1– | Output current sense inputs | Support low-value shunt or DCR sensing; ±1µA input leakage minimizes measurement error |
| INTVCC, EXTVCC | Internal regulator supply | INTVCC = 5.0V ±2%; EXTVCC accepts 5.5–14V to reduce die heating and improve efficiency |
| SDA, SCL, ALERT | PMBus interface | I²C-compatible (10–400 kHz); ALERT asserts open-drain on fault events for system-level interrupt |
| PGOOD0, PGOOD1 | Power-good indicators | Open-drain outputs with 60µs digital filtering; signal valid regulation within ±5% window |
| FAULT0, FAULT1 | Fault status outputs | Independent per-channel fault reporting with 3µs digital filtering and configurable masking |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent PMBus-controlled outputs | Enables discrete rail management for heterogeneous SoCs/FPGAs without external sequencers |
| Integrated 16-bit ADC + 12-bit DAC | Delivers real-time telemetry (VIN, VOUT, IOUT, temperature) and closed-loop digital servo control |
| EEPROM with ECC and fault logging | Stores configuration, calibration, and fault history; eliminates need for external nonvolatile memory |
| Accurate PolyPhase current sharing (≤±5%) | Supports up to 6 phases per channel with SHARE_CLK synchronization for scalable high-current designs |
| Programmable soft-start/stop and sequencing | Configurable ramp rates and inter-rail delays prevent inrush and ensure safe power-up/down order |
Applications
| Telecom Base Station Power | Data Center Point-of-Load |
|---|---|
Use Scenario: Regulating multiple voltage rails (e.g., 12V, 5V, 1.8V) for RF transceivers, baseband processors, and memory in 5G macro cells. IC Role / Device Role / Timing Role: Dual-output controller managing independent sequencing, telemetry, and fault response for distributed power domains. Use Value: ±0.5% VOUT accuracy and 16-bit telemetry enable compliance with strict 3GPP power integrity requirements. | Use Scenario: Supplying CPU, GPU, and memory rails in AI accelerator cards where dynamic load steps exceed 100A/µs. IC Role / Device Role / Timing Role: 6-phase capable controller delivering fast transient response and accurate current sharing across parallel phases. Use Value: Integrated current-mode loop and programmable compensation reduce external component count while maintaining stability under rapid load changes. |
| Industrial PLC Backplane | Medical Imaging Power Subsystem |
Use Scenario: Providing isolated, monitored 24V and 5V rails for I/O modules, communication interfaces, and safety-critical logic in factory automation controllers. IC Role / Device Role / Timing Role: Digital power manager with EEPROM-stored configurations enabling field-upgradable firmware and fault logging for predictive maintenance. Use Value: Internal EEPROM retention (10 years) and –40°C to 125°C operation ensure long-term reliability in uncontrolled environments. | Use Scenario: Generating tightly regulated, low-noise 3.3V and 1.2V supplies for high-resolution ADCs, FPGA configuration, and sensor front-ends in MRI/PET systems. IC Role / Device Role / Timing Role: Dual-channel controller with independent margining and OV/UV/OC protection per rail to meet IEC 60601-1 safety requirements. Use Value: ±2.5% OV/UV threshold accuracy and dedicated FAULT pins simplify safety-certified fault tree analysis and redundant shutdown paths. |
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 |
|---|---|---|---|
| LTC3887IUKG#TRPBF | Single-output, higher VIN max (80V), same PMBus features and package | Suitable when only one high-current rail is needed; lacks second independent output and PGOOD1/FAULT1 | Select LTC3886IUKG#TRPBF when dual independent rails with full telemetry per channel are required |
| TPS53689RTAT | TI dual-output PMBus controller; 4.5–18V VIN, no EXTVCC, lower temp grade (–40°C to 105°C) | Targeted at server VR13/VR14 applications; lacks 60V input, EEPROM, and internal temperature sensor | Choose LTC3886IUKG#TRPBF for industrial/high-VIN designs requiring extended temperature range and nonvolatile configuration storage |
Compared with LTC3887IUKG#TRPBF and TPS53689RTAT, the LTC3886IUKG#TRPBF uniquely combines dual 60V-input outputs, integrated EEPROM with fault logging, and –40°C to 125°C operation-enabling single-chip digital power management in harsh, multi-rail environments without external memory or sequencers.
Availability
LTC3886IUKG#TRPBF is available at Aetrix Electronics and suitable for telecom base station power, industrial PLC backplanes, and medical imaging subsystems requiring stable component supply, long-term lifecycle support, and guaranteed performance across extended temperature ranges.
Supply support for LTC3886IUKG#TRPBF 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-reliability DC/DC conversion in space-constrained, thermally demanding applications-emphasizing PMBus interoperability, telemetry fidelity, and robust fault handling without external components.
FAQ
What is the maximum input voltage supported by the LTC3886IUKG#TRPBF?
The LTC3886IUKG#TRPBF supports an absolute maximum input voltage of 60V, with recommended operating range from 4.5V to 60V. This wide VIN range allows direct integration into 48V telecom, 36V industrial, and 24V automotive-derived power architectures without intermediate pre-regulation stages. The device includes undervoltage lockout (UVLO) at 3.7V and overvoltage protection up to 65V on VIN pin.
Does the LTC3886IUKG#TRPBF support independent sequencing of its two outputs?
Yes, the LTC3886IUKG#TRPBF supports fully independent sequencing of VOUT0 and VOUT1 via PMBus commands or resistor configuration. Each output has dedicated RUN0/RUN1 pins, programmable soft-start/stop times, and event-based or time-based sequencing modes. The controller can execute staggered power-up/down, voltage margining, and fault-triggered shutdown per rail without external timing components.
How does the LTC3886IUKG#TRPBF handle output current sensing and protection?
The LTC3886IUKG#TRPBF supports both shunt resistor and inductor DCR current sensing on each output, with ±1.5% total unadjusted error over temperature. It provides peak and average overcurrent protection, programmable current limits (37.5–82mV range), and real-time IOUT telemetry via its 16-bit ADC. Fault responses include immediate shutdown, latched or auto-retry behavior, and FAULT0/FAULT1 pin assertion with configurable masking.
Can the LTC3886IUKG#TRPBF operate without an external EEPROM?
Yes, the LTC3886IUKG#TRPBF contains internal EEPROM with ECC and 10-year data retention at TJ < 125°C. All configuration parameters-including output voltages, margins, sequencing, compensation, and fault thresholds-can be stored onboard. No external EEPROM is required, reducing BOM count and board area. Configuration is retained through power cycles and supports STORE_USER_ALL/RESTORE_USER_ALL commands.
What development tools are compatible with the LTC3886IUKG#TRPBF?
The LTC3886IUKG#TRPBF is fully supported by Analog Devices' LTpowerPlay® GUI software, which provides real-time telemetry visualization, drag-and-drop configuration, fault logging analysis, and scriptable PMBus command execution. Hardware interface requires the DC2255A demonstration board or any USB-to-I²C adapter compliant with SMBus/PMBus protocols. Evaluation is simplified using the LTC3886 demo circuit DC2492A.
LTC3886IUKG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PolyPhase®
- Package/Case:
- 52-WFQFN, 46 Leads, Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
LTC3886IUKG#TRPBF FAQ
1.How can I place an order for LTC3886IUKG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3886IUKG#TRPBF 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 LTC3886IUKG#TRPBF reliable?
The price and inventory of LTC3886IUKG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3886IUKG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC3886IUKG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3886IUKG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3886IUKG#TRPBF?
LTC3886IUKG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3886IUKG#TRPBF 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 LTC3886IUKG#TRPBF?
For technical support, including LTC3886IUKG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3886IUKG#TRPBF requirements.
6.How does Aetrix verify that LTC3886IUKG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC3886IUKG#TRPBF 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 LTC3886IUKG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC3886IUKG#TRPBF?
All LTC3886IUKG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3886IUKG#TRPBF, 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 LTC3886IUKG#TRPBF part is unused and in its original packaging.
Return procedure for LTC3886IUKG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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