{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADP7183ACPZN1.0-R7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADP7183ACPZN1.0-R7","canonicalUrl":"https://icboms.com/analog-devices/ADP7183ACPZN1.0-R7","factsUrl":"https://icboms.com/api/mcp/products/ADP7183ACPZN1.0-R7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADP7183ACPZN1.0-R7 negative-output LDO, fixed -1V, 300mA, 8-UFDFN Exposed Pad / CSP (8-LFCSP 2x2), Tape & Reel.","salesMarkdown":"## Negative rail, tight dropout, wideband PSRR The ADP7183ACPZN1.0-R7 is a negative-output low-dropout linear regulator from Analog Devices, delivering a fixed -1V at up to 300 mA. It is designed for applications that need a clean negative rail derived from a -5.5V maximum input — think op-amp bipolar supplies, sensor bias, or RF front-end rails where switching regulator noise would corrupt the signal. The headline spec is the PSRR: 85 dB at 1 kHz, rolling off to 40 dB at 1 MHz. That means it attenuates 1 kHz ripple by a factor of ~18,000, and even at 1 MHz it still knocks down noise by a factor of 100. For a sensitive analog chain powered from a noisy -5V bus, this regulator does the cleaning without needing a post-filter LC stage. ## Dropout and thermal budget for the board Maximum dropout is 220 mV at the full 300 mA load. Running from a -5V rail, that leaves 3.78 V of headroom — plenty to stay in regulation even if the input sags. The 900 µA quiescent current is moderate; not a battery-saving figure, but fine for a permanently-powered industrial rail. The package is an 8-lead LFCSP (2x2 mm) with an exposed pad — the 8-UFDFN designation. That pad is the main thermal path. On a standard 2-layer board with a small copper pour under the pad, expect the junction-to-ambient thermal resistance to be around 60-70 °C/W. At 300 mA and 4 V drop (1.2 W dissipation), the junction will rise about 80 °C above ambient, so the 125 °C junction rating gives margin in a 40-50 °C enclosure but not a lot. A 4-layer board with thermal vias drops that significantly. The enable pin lets you sequence the negative rail on and off. Protection features include current limit and thermal overload — standard for this class, but the thermal shutdown threshold is set high enough that it won't nuisance-trip on brief load transients. ## Active production, no lifecycle worry It is ROHS3 compliant and suitable for new designs. The -R7 suffix indicates 7-inch reel tape-and-reel packaging, which is the standard for this package size.","metaTitle":"ADP7183ACPZN1.0-R7 Negative LDO, -1V Fixed, 300mA, 8-LFCSP","metaDescription":"Analog Devices ADP7183ACPZN1.0-R7 negative-output LDO, fixed -1V, 300mA, 8-LFCSP 2x2 package. PSRR 85dB at 1kHz. Active production, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"PSRR":"85dB ~ 40dB (1kHz ~ 1MHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-UFDFN Exposed Pad, CSP","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"300mA","Protection Features":"Current Limit, Thermal Overload","Number of Regulators":"1","Output Configuration":"Negative","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"-5.5V","Voltage Dropout (Max)":"0.22V @ 300mA","Current - Supply (Max)":"7 mA","Supplier Device Package":"8-LFCSP (2x2)","Current - Quiescent (Iq)":"900 µA","Voltage - Output (Min/Fixed)":"-1V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.51000","currency":"USD"},{"qty":10,"price":"$4.94500","currency":"USD"},{"qty":25,"price":"$4.67440","currency":"USD"},{"qty":100,"price":"$4.05130","currency":"USD"},{"qty":250,"price":"$3.84356","currency":"USD"},{"qty":500,"price":"$3.44882","currency":"USD"},{"qty":1000,"price":"$2.94000","currency":"USD"},{"qty":3000,"price":"$2.94000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What does the PSRR spec mean for my circuit?","answer":"The PSRR is 85 dB at 1 kHz, dropping to 40 dB at 1 MHz. At 1 kHz, that is about 18,000:1 rejection of ripple on the input rail. At 1 MHz — typical switching-regulator fundamental — it still provides 100:1 rejection. For a sensitive analog front-end or a VCO bias rail, this regulator can replace a post-filter LC stage in many designs."},{"question":"What package is the ADP7183ACPZN1.0-R7 in?","answer":"It comes in an 8-lead LFCSP (lead-frame chip-scale package) measuring 2x2 mm, also designated as 8-UFDFN with exposed pad."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADP7183ACPZN1.0-R7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADP7183ACPZN1.0-R7 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}}