{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCR5BM12,L3F","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TCR5BM12L3F","canonicalUrl":"https://icboms.com/toshiba/TCR5BM12L3F","factsUrl":"https://icboms.com/api/mcp/products/TCR5BM12%2CL3F","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TCR5BM series LDO, 500 mA, 1.2 V fixed output, 98 dB PSRR, 4-XDFN exposed pad, surface mount, tape and reel.","salesMarkdown":"The TCR5BM12,L3F is a 500 mA LDO from Toshiba's TCR5BM series, delivering a fixed 1.2 V output from an input up to 5.5 V. The headline spec is the 98 dB PSRR at 1 kHz — that means the output rejects switching ripple from a buck converter or a digital rail by nearly four orders of magnitude. If your 1.2 V rail feeds an ADC reference or a PLL supply, this LDO keeps the noise floor low enough that the converter's own quantization noise, not the supply, sets the SNR. ## Dropout and quiescent — the board-level tradeoffs Dropout is 0.15 V maximum at the full 500 mA load. If the input rail is 1.35 V (a 1.8 V rail through a series diode, for example), the output holds regulation. Below that headroom, the output tracks the input minus dropout — the datasheet's absolute-max table is the boundary, not a suggestion. Quiescent current is 36 µA typical, so the LDO's own draw is negligible in a battery-powered sensor node that sleeps most of the time. ## Package and thermal — the exposed pad is not optional The 4-XDFN exposed-pad package measures 1.2x1.2 mm (5-DFNB). The datasheet's layout recommendation shows a via array under the pad to the inner ground layer. The enable pin and current-limit control are both accessible; tie the enable high if the rail is always on.","metaTitle":"TCR5BM12,L3F Toshiba LDO, 500 mA, 1.2 V fixed, 98 dB PSRR","metaDescription":"TCR5BM12,L3F Toshiba LDO, 500 mA output, 1.2 V fixed, 98 dB PSRR at 1 kHz, 36 µA Iq, 0.15 V dropout. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"TCR5BM","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"98dB (1kHz)","Series":"TCR5BM","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-XDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable","Current - Output":"500mA","Protection Features":"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)":"0.15V @ 500mA","Supplier Device Package":"5-DFNB (1.2x1.2)","Current - Quiescent (Iq)":"36 µA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5","stockQuantity":26,"priceTiers":[{"qty":1,"price":"$0.50000","currency":"USD"},{"qty":10,"price":"$0.40300","currency":"USD"},{"qty":25,"price":"$0.36920","currency":"USD"},{"qty":100,"price":"$0.27470","currency":"USD"},{"qty":250,"price":"$0.24896","currency":"USD"},{"qty":500,"price":"$0.20604","currency":"USD"},{"qty":1000,"price":"$0.15453","currency":"USD"},{"qty":2500,"price":"$0.14165","currency":"USD"},{"qty":5000,"price":"$0.13307","currency":"USD"},{"qty":10000,"price":"$0.12448","currency":"USD"},{"qty":25000,"price":"$0.11418","currency":"USD"},{"qty":50000,"price":"$0.10989","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the TCR5BM12,L3F?","answer":"98 dB at 1 kHz. This is the power-supply rejection ratio — it tells you how much the output attenuates ripple from the input rail at that frequency."},{"question":"Will TCR5BM12,L3F drop in for TCR5BM11,L3F?","answer":"Yes — the two parts share the same package, pinout, and all parametric specs except the output voltage. TCR5BM12,L3F delivers 1.2 V fixed; TCR5BM11,L3F delivers 1.1 V fixed. The BOM's target voltage is the deciding factor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TCR5BM12L3F","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TCR5BM12L3F 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}}