{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS53125PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS53125PW","canonicalUrl":"https://icboms.com/texas-instruments/TPS53125PW","factsUrl":"https://icboms.com/api/mcp/products/TPS53125PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments D-CAP2™ synchronous buck controller, TPS53125PW, step-down (buck) topology, 2 outputs, 350kHz switching frequency, 4.5V to 24V supply, 24-TSSOP package, tube.","salesMarkdown":"## D-CAP2™ synchronous buck controller — 350 kHz, dual rail The TPS53125PW is a Texas Instruments D-CAP2™ synchronous buck controller delivering two independent regulated outputs from a single 4.5 V to 24 V supply rail. The 350 kHz fixed switching frequency is set internally — no external timing resistor — which simplifies the BOM and keeps the inductor and output capacitor values predictable across the line. Synchronous rectification is built in, so the external FET pair handles the high-side and low-side switching without a separate Schottky catch diode. The controller drives the transistor pair directly; the efficiency gain over a non-synchronous buck is typically 3–5 % at full load, which matters when the output current is in the 10 A+ range per rail. ## Switching frequency and output configuration The 350 kHz switching frequency is a deliberate midpoint: high enough to keep the inductor small, low enough to avoid the switching losses that climb above 500 kHz in a 24 V input design. The positive output configuration means the feedback loop regulates the output above ground; no negative rail generation. The Enable control feature lets the system sequencer hold the outputs off until the input rail is stable — the soft-start is internal, so the start-up ramp is defined by the D-CAP2™ architecture, not an external capacitor. ## Package, temperature grade, and board integration 24-TSSOP with a 4.40 mm body width and 0.65 mm pin pitch — the 24-TSSOP footprint is a standard JEDEC MO-153 variant, so the PCB land pattern is well established. The surface-mount package suits reflow assembly; the tube delivery means the parts arrive in anti-static tubes, not tape-and-reel, which is the typical format for prototype and low-volume builds. The junction temperature will sit higher than TA under load; the thermal resistance of the TSSOP package (approximately 90 °C/W θJA on a standard 2-layer board) means the internal power dissipation should be checked against the die temperature limit, which is typically 125 °C for this process. The part is ROHS3 compliant (EU 2015/863), which covers the full ten restricted substances including the four phthalates. Sourced through independent distribution against an RFQ — the active status means the factory continues to manufacture, so lead times are typically quoted in weeks, not months. The tube quantity (typically 60 per tube for 24-TSSOP) is the standard shipping unit; volume orders are handled per the BOM quantity.","metaTitle":"TPS53125PW Texas Instruments Buck Controller, 350kHz","metaDescription":"Texas Instruments TPS53125PW D-CAP2™ synchronous buck controller. 4.5V to 24V input, 2 outputs, 350kHz switching, 24-TSSOP. Active, RoHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"D-CAP2™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"D-CAP2™","Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"350kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"24-TSSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.22","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.22000","currency":"USD"},{"qty":10,"price":"$4.69000","currency":"USD"},{"qty":25,"price":"$4.43360","currency":"USD"},{"qty":100,"price":"$3.84260","currency":"USD"},{"qty":250,"price":"$3.64548","currency":"USD"},{"qty":500,"price":"$3.27110","currency":"USD"},{"qty":1000,"price":"$2.78850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e0461eef02109df26b2a63979d709c25.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to TPS53125PW — TPS53124RGET?","answer":"The key difference is the package — the TPS53124RGET comes in a 24-VQFN (RGET) rather than the 24-TSSOP (PW) of the TPS53125PW, so the PCB land pattern is different. The TPS53124RGET is also supplied in tape-and-reel, not tube. Functionally they are drop-in equivalents at the schematic level, but the board layout must be reworked for the QFN footprint."},{"question":"What compliance documentation does Texas Instruments provide for TPS53125PW?","answer":"The TPS53125PW is ROHS3 Compliant (EU 2015/863). No REACH, UL, or IEC documentation is listed in the spec record. Texas Instruments typically provides a RoHS certificate of compliance and a material declaration upon request through the supply chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS53125PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS53125PW 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}}