{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3883IUH#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3883IUHTRPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3883IUHTRPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3883IUH%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices PolyPhase® series, LTC3883IUH#TRPBF, single-output step-down (buck) DC/DC controller with PMBus and I²C serial interface. 4.5V to 24V supply, synchronous rectification, transistor driver output, 32-QFN (5x5 mm) package, -40°C to 125°C operating temperature.","salesMarkdown":"## PMBus-programmable single-phase buck controller The LTC3883IUH#TRPBF from Analog Devices is a single-phase synchronous step-down switching regulator controller that brings digital power-system management to a compact 32-QFN package. It belongs to the PolyPhase® family and integrates an I²C / PMBus serial interface for real-time telemetry and configuration — output voltage, current limits, sequencing, and fault thresholds are set over the bus, trimming the need for external resistor dividers and trimming pots on the production line. The controller drives external N-channel MOSFETs and supports clock synchronization for multi-rail phase-spreading to reduce input ripple. Rated for the full -40°C to 125°C junction temperature range, it fits telecom, industrial, and datacom power stages where remote monitoring and margining are required. ## Package and mounting The Vcc supply range of 4.5 V to 24 V covers common intermediate bus voltages without an extra bias regulator. The PMBus interface (clocked over I²C) lets a system controller read output voltage, current, and temperature, and dynamically adjust the output during operation. ## Package and rework considerations The 32-lead WFQFN with exposed pad (5 mm × 5 mm body) is a common footprint for power controllers. The thermal pad under the package must be soldered to a copper plane for heat sinking — a standard reflow profile for QFN works, but hand rework with hot air is feasible if the board has adequate solder mask between the pad and adjacent vias. ## Active production, no end-of-life concern No last-time-buy or obsolescence notice has been issued. For new designs or BOM maintenance, the part is available through independent distribution and can be quoted against an RFQ.","metaTitle":"LTC3883IUH#TRPBF Buck Controller, PMBus, 4.5V-24V","metaDescription":"LTC3883IUH#TRPBF is an Analog Devices PolyPhase® single-phase step-down DC/DC controller with PMBus/I²C interface. Active, -40°C to 125°C, 32-QFN.","metaKeywords":null},"attributes":{"series":"PolyPhase®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"PolyPhase®","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"32-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Frequency Control, Phase Control, Power Good","Number of Outputs":"1","Serial Interfaces":"I²C, PMBus","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"32-QFN (5x5)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$13.36000","currency":"USD"},{"qty":10,"price":"$12.28100","currency":"USD"},{"qty":25,"price":"$11.77160","currency":"USD"},{"qty":100,"price":"$10.37170","currency":"USD"},{"qty":250,"price":"$9.86264","currency":"USD"},{"qty":500,"price":"$9.22636","currency":"USD"},{"qty":1000,"price":"$8.46279","currency":"USD"},{"qty":2500,"price":"$8.14464","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7cb0e63431ea3d81c4703261944fa9ec.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LTC3883IUH#TRPBF operating temperature range?","answer":"The operating junction temperature range is -40°C to 125°C, covering industrial and automotive under-hood environments."},{"question":"Does the LTC3883IUH#TRPBF support I²C and PMBus?","answer":"Yes, it supports both I²C and PMBus serial interfaces for digital configuration and telemetry."},{"question":"What is the difference between LTC3883IUH#TRPBF and LTC3883IUH#PBF?","answer":"The TRPBF suffix indicates tape-and-reel packaging for automated assembly; the PBF suffix is the same silicon in tube or tray format. Electrical specifications are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3883IUHTRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3883IUHTRPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}