{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3425EUH#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3425EUH~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3425EUH~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3425EUH%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3425EUH#PBF boost converter, step-up topology, adjustable output, 5A switch, 100kHz-2MHz, synchronous rectification, 32-WFQFN exposed pad, tube.","salesMarkdown":"## Active production — sourcing and compliance The LTC3425EUH#PBF: It is ROHS3 compliant, covering the full exemption-free RoHS directive — no special handling or documentation waivers needed for EU or California market shipments. ## Boost converter parametrics and the 5A switch This is a step-up (boost) regulator with a single 5A switch integrated on-chip. The 5A figure is the switch current limit, not the continuous output current — the actual output current depends on the input-to-output voltage ratio and the inductor ripple. At a 3.3V input producing 5V out, expect roughly 2.5A continuous to the load before the switch hits its cycle-by-cycle limit. The input range spans 0.5V minimum to 4.5V maximum, which means it can start from a single-cell alkaline (0.9V fresh) or a Li-ion cell near its end-of-discharge voltage (2.7V). The 0.5V minimum is the undervoltage lockout threshold — the part will not start below that, but once running it can regulate down to that input. Output voltage is adjustable from a 2.4V minimum to a 5.25V maximum, set by an external resistor divider feeding the FB pin. The 2.4V floor is the internal reference voltage times the minimum divider ratio — do not try to set the output below that; the error amplifier saturates and regulation is lost. Switching frequency is programmable from 100 kHz to 2 MHz via a single resistor on the RT pin. Lower frequencies (100-400 kHz) give better efficiency at light loads but require a larger inductor; 2 MHz pushes the switching harmonics above the AM broadcast band and shrinks the inductor to a 2.2 µH or 3.3 µH chip type, at the cost of higher switching losses in the internal FET. Synchronous rectification is built in — the low-side catch diode is replaced by a second N-channel FET that turns on during the off-time. This recovers the diode forward drop (typically 0.4-0.5V for a Schottky at 2A) and improves efficiency by 3-5% at output voltages below 3.3V, where the diode drop is a larger fraction of the output. ## Package, thermal, and board integration The LTC3425EUH#PBF is supplied in a 32-lead WFQFN with an exposed pad, measuring 5 mm × 5 mm. It is shipped in a tube, not tape-and-reel. For automated pick-and-place, the tube must be loaded into a tube feeder or the parts transferred to tape — factor this into the assembly line setup if the rest of the BOM runs on reel feeders. If the end equipment sees sustained ambient above 85°C, the junction temperature derating from the datasheet (page 7) must be applied; the part will not survive a 105°C ambient without significant current derating. ## Cross-reference reality vs ADP1607ACPZN-R7 The ADP1607ACPZN-R7 is also a boost converter with synchronous rectification, but it is rated for only 1A output current versus the LTC3425's 5A switch. The package is different (SC-70-5 vs 32-QFN), and the input voltage range starts at 0.8V rather than 0.5V. These are not pin-compatible or drop-in replacements — the LTC3425 serves a higher-power, wider-input-range application where the ADP1607 would hit its current limit or require a different PCB footprint.","metaTitle":"LTC3425EUH#PBF Analog Devices Boost Converter, 5A Switch","metaDescription":"Active-production boost regulator from Analog Devices. 5A switch, 0.5V-4.5V input, adjustable output to 5.25V, 100kHz-2MHz, synchronous rectification.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Up","Topology":"Boost","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"32-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"5A (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz ~ 2MHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"4.5V","Voltage - Input (Min)":"0.5V","Voltage - Output (Max)":"5.25V","Supplier Device Package":"32-QFN (5x5)","Voltage - Output (Min/Fixed)":"2.4V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.75","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.75000","currency":"USD"},{"qty":10,"price":"$10.80200","currency":"USD"},{"qty":25,"price":"$10.35400","currency":"USD"},{"qty":100,"price":"$9.12280","currency":"USD"},{"qty":250,"price":"$8.67504","currency":"USD"},{"qty":500,"price":"$8.11536","currency":"USD"},{"qty":1000,"price":"$7.92000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LTC3425EUH#PBF and how is it quoted?","answer":"Submit an RFQ for your BOM quantity to receive a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3425EUH~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3425EUH~4PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}