{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS40195PWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS40195PWR","canonicalUrl":"https://icboms.com/texas-instruments/TPS40195PWR","factsUrl":"https://icboms.com/api/mcp/products/TPS40195PWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS40195PWR, Step-Down Buck Controller, 1 Output, Transistor Driver, 100kHz to 600kHz, 4.5V to 20V Supply, 16-TSSOP, Surface Mount.","salesMarkdown":"## Step-down controller for intermediate-rail and point-of-load designs The Texas Instruments TPS40195PWR is a single-phase synchronous buck PWM controller designed for step-down conversion from input rails spanning 4.5 V to 20 V. It drives an external transistor pair (high-side and low-side) and integrates features such as current limit, enable, frequency control, power-good flag, and soft-start. The device supports external clock synchronization, allowing multiple converters to run at a common switching frequency for cleaner EMI management or interleaved operation. Housed in a 16-TSSOP package (4.40 mm width), it is rated for operation over -40°C to 125°C junction temperature, making it suitable for industrial, telecom, and automotive under-hood environments where the controller itself may see elevated ambient temperatures. ## Switching frequency and inductor sizing flexibility The switching frequency is programmable from 100 kHz to 600 kHz via an external resistor on the frequency-control pin. Lower frequencies reduce switching losses and improve efficiency at light loads but require larger magnetics; higher frequencies shrink the inductor footprint at the cost of increased gate-drive and core losses. The 85% maximum duty cycle supports step-down ratios down to about 1.2 V output from a 5 V rail, or higher ratios from 12 V intermediate buses, given the controller's 4.5 V minimum input. ## Synchronous rectification and control features The TPS40195PWR includes synchronous rectification, which improves efficiency by replacing the freewheeling Schottky diode with a low-RDS(on) MOSFET. The controller provides a transistor-driver output that directly drives the external MOSFET pair. Built-in control features — current limit, enable, power-good flag, and soft-start — simplify sequencing, fault handling, and startup ramp control without external supervisor ICs.","metaTitle":"TPS40195PWR Buck Controller, 600kHz, 16-TSSOP","metaDescription":"TI TPS40195PWR step-down buck controller, 4.5V to 20V input, 600kHz switching, synchronous rectification, active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Frequency Control, Power Good, Soft Start","Duty Cycle (Max)":"85%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz ~ 600kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"16-TSSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 20V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.00000","currency":"USD"},{"qty":10,"price":"$2.69100","currency":"USD"},{"qty":25,"price":"$2.53880","currency":"USD"},{"qty":100,"price":"$2.16300","currency":"USD"},{"qty":250,"price":"$2.03096","currency":"USD"},{"qty":500,"price":"$1.77708","currency":"USD"},{"qty":1000,"price":"$1.47245","currency":"USD"},{"qty":2000,"price":"$1.43700","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c94242e29bdd9f1de5b2f8629aac421b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does TPS40195PWR support external clock synchronization?","answer":"Yes, the TPS40195PWR includes a clock-sync input, allowing the switching frequency to be synchronized to an external clock for multi-phase or noise-sensitive system designs."},{"question":"Is TPS40195PWR RoHS compliant?","answer":"Yes, the TPS40195PWR is ROHS3 compliant per the Texas Instruments listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS40195PWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS40195PWR 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}}