LTC3889IUKG#PBF Analog Devices Integrated Circuit (Other) In Stock
The LTC3889IUKG#PBF is a dual-output synchronous step-down DC/DC controller by Analog Devices with PMBus interface, operating from 5V to 60V input in a 46-pin QFN package. Key specs: dual-channel PWM control at 500kHz, 5V to 60V input range, current-mode architecture. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 52
- Lifecycle
- ACTIVE
- Datasheet
- LTC3889IUKG#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $12.3900(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-output synchronous step-down PWM controller with PMBus digital interface for programmable telemetry
- Wide 5V to 60V input voltage range supporting 12V, 24V, and 48V industrial power rails
- Current-mode control at 500kHz switching frequency for high efficiency and fast load transient response
- Compact 46-pin QFN-EP package with exposed pad for enhanced thermal dissipation
Applications
The LTC3889IUKG#PBF is designed for dual-rail power supply designs in telecom servers, networking equipment, and industrial computing where PMBus-programmable voltage sequencing and monitoring are required. Its 5V to 60V input range makes it suitable for 48V bus conversion systems in data center infrastructure and advanced motor drive power stages.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1947 |
| Date Of Intro | 2018-11-16 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 5V |
| Input Voltage-Nom | 16V |
| JESD-30 Code | R-PQCC-N46 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Max | 40V |
| Output Voltage-Min | 1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC46/52,.28X.32,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 400kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LTC3889IUKG#PBF:
suggested
Frequently Asked Questions
What input voltage range does the LTC3889IUKG#PBF support for industrial power designs?
The LTC3889IUKG#PBF operates from 5V to 60V input, making it compatible with 12V ATX rails, 24V industrial bus, and 48V telecom bus architectures, enabling dual-output step-down regulation across a wide range of industrial and computing power supply designs.
How does the PMBus interface on the LTC3889IUKG enhance power system management?
The integrated PMBus interface allows digital configuration of output voltages, switching frequency, and fault thresholds at runtime, while reporting real-time telemetry including output voltage, current, and temperature—enabling intelligent power sequencing across dual 500kHz switching channels in server and networking platforms.
What package does the LTC3889IUKG#PBF come in and how does it aid thermal management?
It is housed in a 46-pin QFN with exposed pad (EP), which conducts heat directly to the PCB ground plane, allowing effective thermal management when driving dual high-current step-down converter stages at switching frequencies up to 500kHz in compact power supply modules.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $22.6400 | $22.64 |
| 10+ | $16.2060 | $162.06 |
| 1000+ | $12.3900 | $12390.00 |
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