{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC5302-2.1YMT-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC5302-2.1YMT-TR","canonicalUrl":"https://icboms.com/microchip/MIC5302-2.1YMT-TR","factsUrl":"https://icboms.com/api/mcp/products/MIC5302-2.1YMT-TR","rawCanonicalId":null},"summary":{"shortDescription":"Micrel MIC5302-2.1YMT-TR, positive fixed-output LDO, 2.1V at 150mA, 5.5V max input, 0.1V max dropout, 120µA quiescent, -40°C to 125°C, 4-TMLF (1.2x1.6mm) package, Tape & Reel.","salesMarkdown":"The MIC5302-2.1YMT-TR is a 150mA positive fixed-output LDO from Micrel, delivering a regulated 2.1V from a maximum input of 5.5V. Its key differentiator is the 0.1V maximum dropout at full load — that means with a 3.3V rail you still hold 2.1V regulation through a 1.2V drop, leaving headroom for pre-regulator filtering or a long PCB trace. Quiescent current sits at 120µA, so it's not an ultra-low-Iq part for always-on wearables, but the combination of low dropout and moderate Iq suits it for local rail clean-up in sensor or audio supplies where the enable pin can gate the load when idle. ## PSRR across the audio band Power-supply rejection ratio is specified at 65dB at 1kHz, rolling off to 42dB at 20kHz. That's enough to knock down 100mVpp of 1kHz ripple from a switching pre-regulator to under 60µV at the output — relevant for powering a small analog front-end or a codec's analog supply. The roll-off above 10kHz is typical for a CMOS LDO without a dedicated noise-bypass pin; if you need >50dB at 100kHz, you'd step up to a higher-PSRR sibling like the MIC5317, but for audio-band noise the MIC5302 does the job. ## Package and footprint — 4-TMLF (1.2x1.6mm) Housed in a 4-lead TMLF package measuring 1.2mm x 1.6mm with an exposed pad. That's a very small footprint — roughly the size of two 0402 resistors side by side — so it fits into a compact sensor module or a handheld device PCB. The part is also offered in a 4-UFDFN variant, same land pattern.","metaTitle":"MIC5302-2.1YMT-TR LDO Regulator, 2.1V Fixed Output, 150mA","metaDescription":"Micrel MIC5302-2.1YMT-TR is a 2.1V fixed-output LDO rated for 150mA. Dropout max 0.1V at full load, PSRR 65dB~42dB (1kHz~20kHz), -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"65dB ~ 42dB (1kHz ~ 20kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"4-UFDFN Exposed Pad, 4-TMLF®","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"150mA","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.1V @ 150mA","Supplier Device Package":"4-TMLF® (1.2x1.6)","Current - Quiescent (Iq)":"120 µA","Voltage - Output (Min/Fixed)":"2.1V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.63","priceTiers":[{"qty":1,"price":"$0.63000","currency":"USD"},{"qty":25,"price":"$0.53000","currency":"USD"},{"qty":100,"price":"$0.48000","currency":"USD"},{"qty":5000,"price":"$0.48000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3dbfea0717405e4707dbf66889f80832.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC5302-2.1YMT-TR/alternatives.json"},"ai":{"faq":[{"question":"Is MIC5302-2.1YMT-TR obsolete or still available?","answer":"It remains available through independent distribution channels."},{"question":"Can I use MIC5302-2.1YMT-TR with a 5V input and 2.1V output?","answer":"Yes. The maximum input voltage is 5.5V, so a 5V input is within spec. The dropout at 150mA is only 0.1V, so the 2.1V output is well-regulated with nearly 2.8V of headroom."},{"question":"Is MIC5302-2.1YMT-TR compatible with ceramic output capacitors?","answer":"The evidence does not specify capacitor compatibility, but most Micrel LDOs in this family are stable with ceramic output capacitors of 1µF or larger. For best transient response, use a 4.7µF X5R or X7R ceramic. If the output capacitor ESR is very low (below 10mΩ), check the phase margin in your specific layout; a small series resistor (0.1–0.5Ω) can be added if oscillation is observed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC5302-2.1YMT-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC5302-2.1YMT-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}