{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1673ESA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1673ESAT","canonicalUrl":"https://icboms.com/analog-devices/MAX1673ESAT","factsUrl":"https://icboms.com/api/mcp/products/MAX1673ESA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1673ESA+T, charge pump step-down regulator, adjustable negative output, 125 mA, 350 kHz, 8-SOIC, -40 to 85°C.","salesMarkdown":"## What this part is and what it does The MAX1673ESA+T is a charge-pump voltage converter from Analog Devices that takes a positive input between 2 V and 5.5 V and produces a regulated adjustable negative output down to -5.5 V. It is a step-down topology in the sense that the absolute output voltage magnitude is lower than the input magnitude, but the real trick is polarity inversion — it generates a clean negative rail from a single positive supply. The single output delivers up to 125 mA, switching at 350 kHz, and the output voltage is set with an external resistor divider. No synchronous rectifier here; the internal switches handle the pumping. It comes in an 8-pin SOIC package and is rated for the full industrial temperature range of -40°C to 85°C. ## Where this charge pump fits in a design This is a niche part for generating a negative rail in systems that only have a positive supply. Typical applications include biasing the substrate or back-gate of analog switches, providing a negative supply for single-supply op-amps that need to handle signals near ground, or generating the VGL rail for a small LCD display. The adjustable output from -1.5 V down to -5.5 V gives flexibility to set the exact voltage the load needs. The industrial temperature range means it can live in outdoor telecom gear, factory sensors, or engine-bay electronics without a problem. ## Lifecycle and sourcing reality The MAX1673ESA+T carries an Active lifecycle status and is RoHS3 compliant.","metaTitle":"MAX1673ESA+T Charge Pump, 125 mA, Adjustable Negative Output","metaDescription":"MAX1673ESA+T step-down charge pump IC from Analog Devices. 125 mA output, adjustable negative voltage down to -5.5 V, 350 kHz switching, SOIC-8, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Charge Pump","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Output":"125mA","Number of Outputs":"1","Output Configuration":"Negative","Frequency - Switching":"350kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2V","Voltage - Output (Max)":"-5.5V","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"-1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.70000","currency":"USD"},{"qty":10,"price":"$5.12000","currency":"USD"},{"qty":25,"price":"$4.84040","currency":"USD"},{"qty":100,"price":"$4.19500","currency":"USD"},{"qty":250,"price":"$3.97992","currency":"USD"},{"qty":500,"price":"$3.57116","currency":"USD"},{"qty":1000,"price":"$3.01182","currency":"USD"},{"qty":2500,"price":"$2.86123","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX1673.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can MAX1673ESA+T generate both positive and negative voltages?","answer":"No, this part is a step-down charge pump that produces a single negative output only. It takes a positive input and inverts it to a regulated negative voltage. It does not generate a positive output or a dual rail."},{"question":"What does the adjustable output mean for setting the voltage?","answer":"The output voltage is adjustable from a minimum of -1.5 V down to a maximum of -5.5 V, set by an external resistor divider. This lets you dial in exactly the negative rail voltage your load needs, rather than being stuck with a fixed value."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1673ESAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1673ESAT 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}}