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Analog Devices Inc. LTC7880IUKG#TRPBF
- Part No.:
- LTC7880IUKG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 52-WFQFN Exposed Pad
- Datasheet:
-
LTC7880IUKG#TRPBF.pdf
- Description:
- 60V DUAL STEP-UP CONTROLLER WITH
- Quantity:
- Payment:
- Shipping:
Inventory:3,308
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Product details
Overview
LTC7880IUKG#TRPBF from Analog Devices is a dual-output, 60V synchronous step-up DC/DC controller with PMBus/I²C digital power system management, constant-frequency current-mode control, and independent programmable loop compensation for each channel. It supports up to 6-phase PolyPhase® operation, delivers ±0.5% output voltage accuracy over temperature, and integrates 16-bit ADCs and 12-bit DACs for telemetry readback in industrial and automotive start-stop power systems.
For engineers reviewing the LTC7880IUKG#TRPBF datasheet, LTC7880IUKG#TRPBF pinout, LTC7880IUKG#TRPBF application, or LTC7880IUKG#TRPBF equivalent, key selection considerations include its 5–40V input range, 60V max VOUT capability per channel, I²C/PMBus telemetry (input/output voltage/current, temperature, faults), EEPROM-based fault logging, and 52-lead QFN package with exposed thermal pad.
Technical Context
The LTC7880IUKG#TRPBF implements two independent analog current-mode control loops with programmable gm amplifiers (1.0–5.76 mmho), selectable compensation via RITHR (0–62 kΩ), and digital soft-start/stop, sequencing, and margining via PMBus. Each channel features dedicated ITH and ITHR pins for loop tuning and fault threshold setting.
Its digital architecture includes an integrated 16-bit ADC for telemetry (VOUT, VIN, IOUT, temperature), internal EEPROM with ECC and 10-year data retention at ≤125°C, and dual open-drain FAULT/PGOOD outputs with 3 µs digital filtering on FAULTn and 60 µs on PGOODn. The device operates from –40°C to 125°C and supports external synchronization via SYNC pin with configurable phase offsets (0°–300°).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 40V (operates down to 2.5V after startup when VBIAS powered from VOUT) |
| Max Output Voltage | 60V per channel (VOUT0/VOUT1 independently programmable up to 60V and 30V respectively) |
| Output Voltage Accuracy | ±0.5% over temperature (TJ = –40°C to 125°C) with auto-zeroed servo loop |
| Switching Frequency | 50kHz to 500kHz (programmable via resistor or PMBus; supports external SYNC with phase alignment) |
| PolyPhase® Capability | Up to 6 phases per channel with accurate current sharing (50kHz–500kHz range) |
| ADC/DAC Resolution | 16-bit ADC for telemetry (voltage/current/temp); 12-bit DAC for programmable margins and thresholds |
| Package | 52-lead (7mm × 8mm) QFN with exposed GND pad (UKG package, θJC = 2°C/W) |
Pinout & Package
52-lead plastic QFN (7mm × 8mm), exposed thermal pad (Pin 53 = GND), RoHS-compliant, rated for –40°C to 125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW0, SW1 | Switch Node Outputs | Connect to boost inductor low-side; withstands –5V to 65V transient |
| TG0, TG1 | Top Gate Drivers | Drive high-side N-MOSFET gates; tolerate –0.3V to 74.8V transients |
| BG0, BG1 | Bottom Gate Drivers | Drive low-side N-MOSFET gates; operate up to 9.8V relative to SWx |
| VSENSE0+, VSENSE1+ | Output Voltage Sense Inputs | Differential inputs for closed-loop regulation; support remote sensing |
| ISENSE0+, ISENSE0– ISENSE1+, ISENSE1– | Current Sense Inputs | High-precision differential inputs for DCR or shunt-based current monitoring |
| PGOOD0, PGOOD1 | Power Good Indicators | Open-drain outputs with 60 µs digital filtering; assert when VOUT within ±5% of target |
| FAULT0, FAULT1 | Fault Reporting Outputs | Open-drain outputs with 3 µs digital filtering; active-low on OV/UV/OC/OT events |
| SDA, SCL, ALERT | PMBus/I²C Interface | Standard SMBus-compatible interface; supports 10–400 kHz clock; ALERT signals bus events |
| RUN0, RUN1 | Enable Inputs | Active-high logic inputs with 10 µs digital filtering; control individual channel startup |
| SHARE_CLK | PolyPhase® Clock Output | Drives external phase-sync clocks for multi-controller current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent boost controllers | Each channel fully configurable via PMBus or resistors-separate VOUT, frequency, soft-start, and fault thresholds |
| Integrated telemetry engine | 16-bit ADC reads VIN, VOUT, IOUT, temperature every 90ms; data accessible via READ_VIN/READ_VOUT/READ_IOUT commands |
| EEPROM with ECC and fault logging | Stores configuration, fault history, and calibration data; 10k write cycles, 10-year retention at ≤125°C |
| Programmable gate drive voltage | DRVCC adjustable from 6.3V to 9V (via DRVSET pins) to optimize MOSFET switching loss and conduction loss trade-off |
| Event-based sequencing | Supports complex power-up/down sequences using PMBus ON_OFF_CONFIG and timing registers without external logic |
| Analog current-mode stability | Internal error amplifier gm programmable from 1.0 to 5.76 mmho; RITHR pins enable precise loop compensation for varied output capacitors and loads |
Applications
| Automotive Start-Stop Systems | Industrial 24V/48V Backup Power |
|---|---|
Use Scenario: Maintaining stable 24V rail during engine cranking when battery voltage drops to 6V. IC Role / Device Role / Timing Role: Dual-channel step-up controller regulating two independent backup rails with synchronized PolyPhase® operation to reduce input ripple. Use Value: Enables uninterrupted operation of ADAS ECUs and infotainment systems during cold-crank events with <±0.5% VOUT accuracy and fast transient response. |
Use Scenario: Converting 12V or 24V industrial bus to regulated 48V for PoE++ switches or motor drives. IC Role / Device Role / Timing Role: High-voltage boost controller managing up to 60V output with PMBus telemetry for remote monitoring and fault reporting in factory automation PLCs. Use Value: Delivers precise 48V output with real-time current/voltage readback and EEPROM-stored fault logs for predictive maintenance and compliance reporting. |
| Telecom Intermediate Bus Converters | Medical Imaging Power Supplies |
Use Scenario: Generating 48V intermediate bus from 24V input in telecom shelf power systems with strict efficiency and thermal requirements. IC Role / Device Role / Timing Role: Dual-output controller supporting interleaved 6-phase operation to minimize input capacitor RMS current and thermal stress. Use Value: Achieves >97% peak efficiency at 10A load while enabling digital margining and sequencing across multiple downstream converters via shared PMBus bus. |
Use Scenario: Providing isolated, tightly regulated high-voltage bias supplies (e.g., ±30V, +60V) for CT/MRI detector front-ends requiring ultra-low noise and high reliability. IC Role / Device Role / Timing Role: Precision boost controller with 16-bit telemetry and internal temperature sensing for real-time health monitoring and safety-critical fault shutdown. Use Value: Ensures ±0.5% output stability over temperature and time, with EEPROM-logged fault history meeting IEC 62304 software lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC7881IUKG#TRPBF | Same pinout and feature set; adds enhanced fault propagation and improved light-load efficiency in pulse-skipping mode | Preferred for new designs requiring tighter fault coordination across multi-rail systems | Select LTC7881IUKG#TRPBF if needing extended fault-sharing capability and lower quiescent current (<18mA vs 22mA) |
| MP2918GL-Z | Single-channel 60V boost controller with PMBus; no PolyPhase® or dual-output capability; smaller 32-QFN package | Suitable only for single-rail applications; lacks independent channel control and EEPROM fault logging | Choose MP2918GL-Z only when cost and board space constrain design and dual-channel functionality is unnecessary |
Compared with LTC7880IUKG#TRPBF, the LTC7881IUKG#TRPBF offers superior fault coordination and lower IQ, while the MP2918GL-Z sacrifices dual-channel flexibility and telemetry depth for integration density-making LTC7880IUKG#TRPBF optimal for complex, multi-rail industrial and automotive systems requiring full digital power management.
Availability
LTC7880IUKG#TRPBF is available at Aetrix Electronics and suitable for automotive start-stop systems, industrial 48V intermediate bus converters, and medical imaging power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC7880IUKG#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 LTC7880IUKG#TRPBF belongs to Analog Devices' Power by Linear™ digital power controller family, designed specifically for high-reliability, digitally managed DC/DC conversion in harsh environments where precision, telemetry, and fault resilience are critical.
FAQ
What is the maximum input voltage the LTC7880IUKG#TRPBF can handle?
The LTC7880IUKG#TRPBF supports a wide input voltage range of 5V to 40V under normal operation, and can operate down to 2.5V after startup when VBIAS is powered from the output rail. Absolute maximum ratings allow VIN pins to withstand up to 42V transient conditions, making it robust for automotive and industrial applications with voltage surges.
Does the LTC7880IUKG#TRPBF support both continuous and discontinuous conduction modes?
Yes, the LTC7880IUKG#TRPBF can be configured for either continuous inductor current mode or discontinuous (pulse-skipping) mode via PMBus command or hardware configuration. Pulse-skipping improves light-load efficiency, while continuous mode ensures predictable ripple and EMI behavior-mode selection is per-channel and dynamically reconfigurable.
How does the LTC7880IUKG#TRPBF implement PolyPhase® current sharing across multiple phases?
The LTC7880IUKG#TRPBF uses its SHARE_CLK pin to synchronize switching across up to six external phases per channel, with programmable phase offsets (0°–300°). Current sharing accuracy is maintained via analog current-mode control with matched gm amplifiers and external sense resistors or DCR networks-ensuring <±5% phase current imbalance across temperature and load.
Can the LTC7880IUKG#TRPBF store custom configurations in nonvolatile memory?
Yes, the LTC7880IUKG#TRPBF includes on-chip EEPROM with ECC protection that stores user configurations-including VOUT setpoints, soft-start times, fault thresholds, and loop compensation values. STORE_USER_ALL writes all settings; RESTORE_USER_ALL reloads them at power-up-enabling repeatable, field-upgradable power system behavior without host intervention.
What thermal management features does the LTC7880IUKG#TRPBF provide?
The LTC7880IUKG#TRPBF integrates internal die temperature sensing with ±1°C accuracy and supports external NTC thermistors via TSNS0/TSNS1 pins (±3°C accuracy). It provides overtemperature fault response with programmable hysteresis, automatic shutdown above 150°C, and telemetry readback of temperature data via PMBus-critical for thermal derating and safety-critical systems.
LTC7880IUKG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 52-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Type:
- Transistor Driver
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Number of Outputs:
- 2
- Output Phases:
- 2
- Voltage - Supply (Vcc/Vdd):
- 5V ~ 40V
- Frequency - Switching:
- 50kHz ~ 500kHz
- Duty Cycle (Max):
- 92%
- Synchronous Rectifier:
- Yes
- Clock Sync:
- Yes
- Serial Interfaces:
- I2C, PMBus
- Control Features:
- Current Limit, Enable, Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-QFN (7x8)
LTC7880IUKG#TRPBF FAQ
1.How can I place an order for LTC7880IUKG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC7880IUKG#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 LTC7880IUKG#TRPBF reliable?
The price and inventory of LTC7880IUKG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC7880IUKG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC7880IUKG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC7880IUKG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC7880IUKG#TRPBF?
LTC7880IUKG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC7880IUKG#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 LTC7880IUKG#TRPBF?
For technical support, including LTC7880IUKG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC7880IUKG#TRPBF requirements.
6.How does Aetrix verify that LTC7880IUKG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC7880IUKG#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 LTC7880IUKG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC7880IUKG#TRPBF?
All LTC7880IUKG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC7880IUKG#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 LTC7880IUKG#TRPBF part is unused and in its original packaging.
Return procedure for LTC7880IUKG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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