{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADP3158JR","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADP3158JR","canonicalUrl":"https://icboms.com/analog-devices/ADP3158JR","factsUrl":"https://icboms.com/api/mcp/products/ADP3158JR","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADP3158JR, Step-Down, Buck, Synchronous Rectifier, Transistor Driver, 1 Phase, 4 Outputs, 0°C to 70°C, 16-SOIC, Bulk.","salesMarkdown":"## What the ADP3158JR actually does The ADP3158JR is a synchronous buck controller from Analog Devices, designed to drive external N-channel MOSFETs in a step-down (buck) topology. Its headline feature is four programmable outputs, controlled via a 4-bit digital interface, letting you set the output voltage without swapping feedback resistors. The controller includes current limiting and frequency control, and it uses synchronous rectification for better efficiency at moderate to high output currents. This part is aimed at desktop and server power supplies, telecom line cards, and other multi-rail systems where a single controller can manage several voltage rails from one input. The 0°C to 70°C operating temperature range limits it to commercial indoor environments — not rated for industrial or automotive use. ## The 4-bit programming — what it means for your BOM The four outputs are not four independent regulators; rather, the 4-bit code selects one of sixteen pre-set output voltage levels for a single buck converter. This is useful for designs that need to change the output rail dynamically — for example, a CPU core voltage that steps down during idle. The control features include current limit and frequency control, so you can set the switching frequency to avoid noise-sensitive bands. ## Package and mounting Housed in a 16-pin SOIC (0.154\" body width, 3.90 mm wide), surface-mount package. The supplier device package is 16-SOIC. No exposed pad, so thermal management relies on the copper area on the PCB and airflow. The Bulk shipping form means it arrives in tubes or trays, not tape-and-reel — factor that into your pick-and-place setup if you're running high volume. ## Lifecycle and compliance reality That means it cannot be used in products sold into the EU or other RoHS-regulated markets unless you have an exemption. For new designs requiring lead-free assembly, look at the ADP1874 or ADP1871 series (both RoHS-compliant and rated for -40°C to 125°C).","metaTitle":"ADP3158JR Synchronous Buck Controller, 4-Bit Programmable","metaDescription":"ADP3158JR step-down synchronous buck controller with 4 programmable outputs, current limit, frequency control. Active lifecycle, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Frequency Control","Number of Outputs":"4","Output Configuration":"Positive","Operating Temperature":"0°C ~ 70°C","Synchronous Rectifier":"Yes","Supplier Device Package":"16-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8","stockQuantity":0,"priceTiers":[{"qty":375,"price":"$0.80000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3bb92423762e187422e64aff96a3799e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a good cross reference or equivalent for ADP3158JR?","answer":"The LTC1148CS#PBF is a functional peer — also a synchronous buck controller in a 16-pin SOIC, 0°C to 70°C range, but with only one output and no 4-bit programming. For a RoHS-compliant alternative with wider temperature range, consider the ADP1874ARQZ-1.0-R7 or ADP1871ARMZ-0.3-R7, both rated -40°C to 125°C."},{"question":"How do I program the 4-bit outputs on ADP3158JR?","answer":"The four outputs correspond to a 4-bit digital code that selects one of sixteen pre-set output voltage levels. The exact voltage table is in the datasheet — apply the code to the programming pins to set the desired output. The controller also includes current limit and frequency control pins for further configuration."},{"question":"Is ADP3158JR lead-free?","answer":"No, the ADP3158JR is RoHS non-compliant, meaning it contains lead. It is not lead-free and cannot be used in RoHS-regulated products without an exemption."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADP3158JR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADP3158JR 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}}