{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCR3DG18,LF","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TCR3DG18LF","canonicalUrl":"https://icboms.com/toshiba/TCR3DG18LF","factsUrl":"https://icboms.com/api/mcp/products/TCR3DG18%2CLF","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TCR3DG series LDO regulator, fixed 1.8V output, 300mA, 70dB PSRR at 1kHz, 4-WCSPE package, surface mount.","salesMarkdown":"## 300mA LDO with 70dB PSRR — what that means for a clean rail The Toshiba TCR3DG18,LF is a 300mA fixed-output LDO regulator in the TCR3DG series, delivering a regulated 1.8V rail from an input up to 5.5V. Its 70dB PSRR at 1kHz means that ripple on the input — say from a switching converter upstream — is attenuated by a factor of about 3000 before it reaches the load. That matters when you are feeding a noise-sensitive analog front-end or a PLL that jitters on supply hash. The dropout voltage max is 365mV at the full 300mA load, so the input rail needs to stay above roughly 2.165V to keep the output in regulation under worst-case conditions. ## Package, footprint, and field-swap reality Housed in a 4-WCSPE package (0.65x0.65mm), this is a tiny ball-grid array — not something you swap with a soldering iron in the field. It is a reflow-only part, and the 0.65mm pitch means the board layout needs a stencil and a proper reflow profile. The enable pin (Control Features: Enable) lets you shut the output down to near-zero quiescent current for power sequencing or sleep modes. Protection includes inrush current limiting, over-current, and over-temperature shutdown — so it survives a momentary short on the output without letting the smoke out. RoHS compliant, so it passes the standard environmental requirements for EU and most global markets.","metaTitle":"Toshiba TCR3DG18,LF LDO, 300mA, 1.8V Fixed, 70dB PSRR","metaDescription":"Toshiba TCR3DG18,LF LDO: 300mA output, 1.8V fixed, 70dB PSRR at 1kHz. Active production, RoHS compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"TCR3DG","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"70dB (1kHz)","Series":"TCR3DG","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-XFBGA, CSPBGA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"300mA","Protection Features":"Inrush Current, Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.365V @ 300mA","Supplier Device Package":"4-WCSPE (0.65x0.65)","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.41","stockQuantity":18,"priceTiers":[{"qty":1,"price":"$0.39000","currency":"USD"},{"qty":10,"price":"$0.31300","currency":"USD"},{"qty":25,"price":"$0.28680","currency":"USD"},{"qty":100,"price":"$0.21330","currency":"USD"},{"qty":250,"price":"$0.19332","currency":"USD"},{"qty":500,"price":"$0.15998","currency":"USD"},{"qty":1000,"price":"$0.11999","currency":"USD"},{"qty":2500,"price":"$0.10999","currency":"USD"},{"qty":5000,"price":"$0.10332","currency":"USD"},{"qty":10000,"price":"$0.09666","currency":"USD"},{"qty":25000,"price":"$0.08866","currency":"USD"},{"qty":50000,"price":"$0.08532","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of TCR3DG18,LF?","answer":"The power supply rejection ratio is 70dB at 1kHz, which provides strong attenuation of input ripple at that frequency."},{"question":"Will TCR3DG18,LF drop into a board designed for TCR3DG11,LF?","answer":"Both parts share the same package (4-WCSPE), pinout, and 300mA output capability. The only difference is the fixed output voltage: 1.8V for TCR3DG18,LF vs 1.1V for TCR3DG11,LF. If the board expects 1.8V, it is a direct swap; if it expects 1.1V, the output will be too high and may damage downstream components."},{"question":"What compliance documentation does Toshiba provide for TCR3DG18,LF?","answer":"The part is RoHS compliant per the lifecycle record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TCR3DG18LF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TCR3DG18LF 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}}