{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5996CATE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5996CATE","canonicalUrl":"https://icboms.com/analog-devices/MAX5996CATE","factsUrl":"https://icboms.com/api/mcp/products/MAX5996CATE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX5996CATE+ PoE PD controller, 802.3af/at/bt compliant, 90 W max, 1-channel, external switch, 16-TQFN-EP, -40°C to 125°C.","salesMarkdown":"## 90 W PD controller for 802.3bt designs It also supports legacy 802.3af (PoE) and 802.3at (PoE+) standards, making it a drop-in for designs that need to scale power delivery as the infrastructure upgrades. This is an external-switch controller — there is no internal MOSFET, so the designer selects the switching FET to match the power stage's current and thermal requirements. The 60 V supply rating sets the absolute maximum for the input rail, which covers the typical 48 V PoE bus with margin for transients. Because the MAX5996CATE+ has no internal switch, the bill of materials includes an external N-channel MOSFET and its gate-drive passives. This gives the designer freedom to choose a FET with the right Rds(on) and gate charge for the target efficiency, but it also adds a layout-critical loop from the controller's gate drive pin to the FET gate and back through the source sense. Keep that loop short and wide to avoid ringing at the switching node. The controller draws 1.2 mA supply current, which is the quiescent overhead for the housekeeping supply — the actual input current depends on the load power and the external FET's efficiency.","metaTitle":"MAX5996CATE+ PoE PD Controller, 90 W, 802.3bt","metaDescription":"MAX5996CATE+ PoE PD controller supports 802.3af/at/bt up to 90 W. -40°C to 125°C, requires external MOSFET. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"Controller (PD), DC/DC","Package":"Tray","Standards":"802.3at (PoE+), 802.3af (PoE), 802.3bt","Power - Max":"90 W","Mounting Type":"Surface Mount","Package / Case":"16-WQFN Exposed Pad","Auxiliary Sense":"Yes","lifecycle_stage":"eol_hot","Current - Supply":"1.2mA","Voltage - Supply":"60V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"16-TQFN-EP (5x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.66000","currency":"USD"},{"qty":10,"price":"$5.98500","currency":"USD"},{"qty":25,"price":"$5.65840","currency":"USD"},{"qty":80,"price":"$4.90400","currency":"USD"},{"qty":230,"price":"$4.65257","currency":"USD"},{"qty":490,"price":"$4.17473","currency":"USD"},{"qty":980,"price":"$3.52086","currency":"USD"},{"qty":2450,"price":"$3.34482","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX5996A-MAX5996C.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the MAX5996CATE+ maximum power output?","answer":"The MAX5996CATE+ supports up to 90 W, which corresponds to the 802.3bt Type 4 power level. This covers high-power applications like pan-tilt-zoom cameras, thin clients, and 5G small cells."},{"question":"Is MAX5996CATE+ compatible with 802.3bt?","answer":"Yes, it is fully compliant with 802.3bt, as well as 802.3at and 802.3af. It includes auxiliary sense support for the 4-pair power delivery scheme used in bt."},{"question":"Does MAX5996CATE+ require an external switching MOSFET?","answer":"Yes, this controller has no internal switch, so an external N-channel MOSFET must be added to the BOM. The designer selects the FET based on the required power level and thermal budget."},{"question":"What is MAX5996CATE+ used for?","answer":"It is a Powered Device controller for PoE applications, converting the 48 V DC from the Ethernet cable into a regulated output for the load. Typical uses include IP cameras, wireless access points, IoT gateways, and building automation endpoints."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5996CATE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5996CATE 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}}