{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61193PWPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61193PWPR","canonicalUrl":"https://icboms.com/texas-instruments/TPS61193PWPR","factsUrl":"https://icboms.com/api/mcp/products/TPS61193PWPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61193PWPR, DC DC Regulator, 3-channel LED driver, SEPIC/boost topology, 45V output, 100 mA per channel, PWM dimming, 300 kHz to 2.2 MHz, 20-HTSSOP, -40°C to 125°C.","salesMarkdown":"## What the 45 V output and 100 mA per channel mean for your LED string The TPS61193PWPR is a three-channel DC-DC regulator from Texas Instruments designed for LED backlight applications. Each channel delivers up to 100 mA at a maximum output voltage of 45 V, which means you can drive a string of up to 10–12 white LEDs in series per channel, depending on their forward voltage. The part uses a SEPIC or step-up (boost) topology, so it can regulate the LED current whether the input voltage is above, below, or equal to the output — a common situation in automotive and battery-powered systems where the supply rail sags below the LED string voltage. ## PWM dimming and switching frequency — layout and inductor choices Dimming is controlled via a PWM signal on the dedicated pin, giving you a linear brightness range from near-zero to full scale without color shift. The switching frequency is programmable between 300 kHz and 2.2 MHz. Running at the high end shrinks the inductor and output capacitor footprint — useful in space-constrained panel backlight PCBs — but pushes switching losses higher. At 300 kHz the efficiency peaks, but the inductor gets physically larger. The frequency is set with a single resistor to ground, so you can tune it during layout without a component change. That covers under-hood displays, outdoor kiosk backlights, and dashboard infotainment panels where ambient heat can exceed 85°C.","metaTitle":"TI TPS61193PWPR LED Driver, 3-Channel, 45V, PWM Dimming","metaDescription":"Texas Instruments TPS61193PWPR DC DC regulator, 3-channel LED driver for backlight.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"SEPIC, Step-Up (Boost)","Frequency":"300kHz ~ 2.2MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"20-PowerTSSOP (0.173\\\", 4.40mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Output":"45V","Number of Outputs":"3","Internal Switch(s)":"Yes","Base Product Number":"TPS61193","Operating Temperature":"-40°C~125°C(TA)","Voltage - Supply (Max)":"45V","Voltage - Supply (Min)":"4.5V","Supplier Device Package":"20-HTSSOP","Current - Output / Channel":"100mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/87a57dfb6b23cc43a84dba9eee6c8ef6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61193PWPR/alternatives.json"},"ai":{"faq":[{"question":"Is TPS61193PWPR equivalent to TPS61193PWP?","answer":"The two share the same silicon and 20-HTSSOP package. The difference is the shipping medium: TPS61193PWP ships in tubes, while TPS61193PWPR ships in tape and reel. For pick-and-place assembly, the PWPR (reel) variant is the standard choice. Electrical characteristics are identical."},{"question":"Can TPS61193PWPR be used in LED backlight applications with 12 V input?","answer":"Yes. The SEPIC topology handles input voltages that dip below the LED string voltage — for example, cranking a 12 V battery down to 9 V while the string needs 30 V — without dropping out."},{"question":"Is TPS61193PWPR lead-free?","answer":"The TPS61193PWPR is listed with a tape-and-reel package that is RoHS-compliant and lead-free. The HTSSOP package uses a NiPdAu or matte-tin finish on the leads, consistent with current TI lead-free plating. No separate lead-free certification code is needed for this suffix."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61193PWPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61193PWPR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}