{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS5120DBTR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS5120DBTR","canonicalUrl":"https://icboms.com/texas-instruments/TPS5120DBTR","factsUrl":"https://icboms.com/api/mcp/products/TPS5120DBTR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS5120DBTR dual-output synchronous buck controller, step-down topology, 4.5-28V input, 300kHz switching frequency, 30-TFSOP (4.40mm width) package, Tape & Reel.","salesMarkdown":"## Dual-phase synchronous buck controller for 4.5-28V rails The TPS5120DBTR is a dual-output synchronous buck controller from Texas Instruments, designed to step down input voltages from 4.5V to 28V using a buck topology with synchronous rectification. The 300kHz fixed switching frequency targets low-ripple power rails for DSPs, FPGAs, and multi-rail logic boards where two independent or interleaved outputs share the same input bus. ## 2-phase control with enable, power-good, and soft-start sequencing Two output phases and two independent outputs let the controller drive separate point-of-load rails or interleave them for lower input ripple on a single high-current rail. The enable pin gates the controller on command; the power-good output signals when both rails are within regulation — a clean handshake for downstream load sequencing. Soft-start ramps the output voltage on each channel, preventing inrush current from tripping the upstream supply. The 83% maximum duty cycle defines the headroom between input and output: at 5V input the lowest regulated output is about 4.15V, so this part is best suited for moderate step-down ratios, not ultra-low dropout. ## 30-TSSOP footprint for compact power-stage layout The 30-lead TFSOP (4.40mm body width) and its supplier-device package alias 30-TSSOP place the controller in a narrow SOIC-like footprint. The pin pitch and body size allow routing on a 2-layer board for moderate-current designs, though a 4-layer stack with a dedicated ground plane improves thermal dissipation from the exposed pad. Tape & Reel and Cut Tape packaging options support both volume reflow and prototype hand-assembly.","metaTitle":"TI TPS5120DBTR Dual-Phase Buck Controller, 300kHz","metaDescription":"Texas Instruments TPS5120DBTR dual-output synchronous buck controller, 4.5-28V input, 300kHz switching, 30-TSSOP. Active, ROHS3. Request quote.","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":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"2","Package / Case":"30-TFSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Power Good, Soft Start","Duty Cycle (Max)":"83%","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"300kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"30-TSSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 28V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.15000","currency":"USD"},{"qty":10,"price":"$6.46300","currency":"USD"},{"qty":25,"price":"$6.16280","currency":"USD"},{"qty":100,"price":"$5.35100","currency":"USD"},{"qty":250,"price":"$5.11048","currency":"USD"},{"qty":500,"price":"$4.65954","currency":"USD"},{"qty":1000,"price":"$4.25400","currency":"USD"},{"qty":2000,"price":"$4.25400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3f289da77db28db65c20db083f1d7f8e.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS5120DBTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS5120DBTR 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}}