{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP873245RHDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP873245RHDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/LP873245RHDRQ1","factsUrl":"https://icboms.com/api/mcp/products/LP873245RHDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP873245RHDRQ1 automotive PMIC, AEC-Q100, dual 2 A step-down (buck) converters + dual 300 mA LDOs, 2.8-5.5 V input, 2 MHz switching, -40 to +125°C, 28-VQFN (5x5 mm) wettable flank package.","salesMarkdown":"## Automotive PMIC with dual buck converters and dual LDOs The LP873245RHDRQ1 is an automotive-grade power management IC from Texas Instruments, rated AEC-Q100 for -40 to +125°C ambient operation. It integrates two 2 A step-down (buck) converters and two 300 mA low-dropout (LDO) linear regulators in a single 28-VQFN package with wettable flank terminals. ## Output rails and sequencing for SoC power trees Each of the two buck converters delivers up to 2 A with a programmable output from 0.7 V to 3.36 V — sized for the core and memory rails of an automotive SoC or FPGA. The two LDOs each source 300 mA from 0.8 V to 3.3 V, typically used for PLL, analog, or I/O supplies that need lower noise than a switching regulator provides. The 2 MHz switching frequency on the buck converters places the fundamental and its harmonics above the AM radio band, reducing in-cabin interference risk. It also shrinks the output inductor to the 1-2.2 µH range, keeping the total solution footprint under 50 mm² in a typical layout. An integrated power sequencer manages the turn-on order of the four rails without an external supervisor or GPIO from the host processor — the start-up timing is programmable via the I²C-compatible interface, so the core rail can be guaranteed stable before the I/O and analog rails ramp. ## Package, thermal, and inspection considerations The 28-VQFN package (5x5 mm) with an exposed thermal pad requires a thermal via array under the pad to the ground plane — the datasheet recommends a 2x2 array of 0.3 mm vias to keep the junction temperature below 125°C at full load in a 85°C ambient environment. Wettable flank terminals on the QFN package enable automatic optical inspection (AOI) of the solder fillet after reflow — critical for automotive production lines that require side-wetting verification per IPC-A-610 Class 3. No X-ray is needed to confirm the hidden pad connections.","metaTitle":"LP873245RHDRQ1 Texas Instruments PMIC, Dual Buck + Dual LDO","metaDescription":"Active Texas Instruments LP873245RHDRQ1 automotive PMIC with dual 2 A buck converters and dual 300 mA LDOs. 2.8-5.5 V input, -40 to 125°C, 28-VQFN.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Down (Buck) (2), Linear (LDO) (2)","w/Sequencer":"Yes","w/LED Driver":"No","w/Supervisor":"No","Mounting Type":"Surface Mount, Wettable Flank","Package / Case":"28-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.8V ~ 5.5V","Number of Outputs":"4","Frequency - Switching":"2MHz","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"28-VQFN (5x5)","Voltage/Current - Output 1":"Programmable, Programmable, Programmable, 0.7V ~ 3.36V, 2A","Voltage/Current - Output 2":"Programmable, Programmable, Programmable, 0.7V ~ 3.36V, 2A","Voltage/Current - Output 3":"Programmable, Programmable, Programmable, 0.8V ~ 3.3V, 300mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.65","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.65000","currency":"USD"},{"qty":10,"price":"$3.27900","currency":"USD"},{"qty":25,"price":"$3.09960","currency":"USD"},{"qty":100,"price":"$2.68640","currency":"USD"},{"qty":250,"price":"$2.54864","currency":"USD"},{"qty":500,"price":"$2.28688","currency":"USD"},{"qty":1000,"price":"$1.92870","currency":"USD"},{"qty":3000,"price":"$1.83226","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1774c38a9d26fca52846ddaecf7b96d8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What output voltages and currents does the LP873245RHDRQ1 provide?","answer":"It provides four programmable outputs: two buck converters each delivering 2 A from 0.7 V to 3.36 V, and two LDOs each delivering 300 mA from 0.8 V to 3.3 V. All four rails are independently programmable via the I²C interface."},{"question":"How do I get current pricing and lead time for the LP873245RHDRQ1?","answer":"Pricing and lead time are confirmed at quote time against your BOM quantity. Submit an RFQ through this listing; the part is sourced through authorized and independent distribution channels and quoted to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP873245RHDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP873245RHDRQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}