{"id":8346,"date":"2026-06-28T12:26:42","date_gmt":"2026-06-28T12:26:42","guid":{"rendered":"https:\/\/materialparts.com\/lt8610aimse-5pbf\/"},"modified":"2026-06-28T12:26:42","modified_gmt":"2026-06-28T12:26:42","slug":"lt8610aimse-5pbf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lt8610aimse-5pbf\/","title":{"rendered":"LT8610AIMSE-5#PBF"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The LT8610AIMSE-5#PBF from Analog Devices is a 42 V, 3.5 A synchronous step-down regulator with a fixed 5 V output, ultralow 2.5 \u00b5A quiescent current, and I-grade temperature range of -40\u00b0C to +125\u00b0C. In a 16-lead MSOP package with exposed pad, it achieves 95% efficiency at 1 A from 12 V to 5 V and features a 30 ns minimum on-time, adjustable 200 kHz to 2.2 MHz frequency, and Burst Mode operation with less than 10 mVp-p output ripple.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n3.4 V to 42 V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n5 V (fixed)<\/td>\n<\/tr>\n
Max Output Current<\/td>\n3.5 A<\/td>\n<\/tr>\n
Quiescent Current (Burst Mode)<\/td>\n2.5 \u00b5A<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n200 kHz to 2.2 MHz<\/td>\n<\/tr>\n
Efficiency<\/td>\n95% at 1 A, 12VIN to 5VOUT<\/td>\n<\/tr>\n
Dropout<\/td>\n200 mV at 1 A<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C (I-grade)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n16-MSOP with exposed pad<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 2.5 \u00b5A IQ Burst Mode with output ripple below 10 mVp-p<\/li>\n
  • 3.5 A maximum output with integrated synchronous switches<\/li>\n
  • 30 ns minimum switch-on time for high step-down ratios<\/li>\n
  • Accurate 1 V EN\/UV threshold for programmable UVLO<\/li>\n
  • Internal compensation and soft-start<\/li>\n
  • Power good flag with +\/-9% threshold window<\/li>\n
  • AEC-Q100 qualified<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive and industrial power supplies<\/li>\n
    • 5 V point-of-load conversion from 12 V\/24 V<\/li>\n
    • Always-on battery-powered systems<\/li>\n
    • GSM burst load power supplies<\/li>\n
    • Embedded 5 V rail generation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LT8610AIMSE-5#PBF from Analog Devices is a 42 V, 3.5 A synchronous step-down regulator with a fixed 5 V output, ultralow 2.5 \u00b5A quiescent current, and I-grade temperature range of -40\u00b0C to +125\u00b0C. In a 16-lead MSOP package with exposed pad, it achieves 95% efficiency at 1 A from 12 V to 5 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[165],"class_list":["post-8346","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"42V, 3.5A sync buck regulator, 5V fixed out, 2.5uA IQ, MSOP-16, -40 to 125C","date_code":"","package_case":"MSOP-16 with exposed pad (5.00 x 4.40 x 0.90 mm body)","in_stock":12611,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/lt8610a-8610ab.pdf","price":"$6.16 @ 1ku","product_introduction":"The LT8610AIMSE-5#PBF is a 42 V, 3.5 A synchronous step-down switching regulator from Analog Devices featuring a fixed 5 V output and an I-grade operating temperature range of -40\u00b0C to +125\u00b0C. Part of the LT8610A family, it offers higher output current (3.5 A vs 2.5 A for the base LT8610) and a faster 30 ns minimum switch-on time. The integrated top and bottom power switches enable synchronous operation, achieving up to 95% efficiency at 1 A from 12 V input. The ultralow 2.5 \u00b5A quiescent current in Burst Mode makes it ideal for always-on battery-powered applications. The switching frequency is adjustable from 200 kHz to 2.2 MHz via an external resistor and can be synchronized to an external clock. Internal compensation with peak current mode control provides stable operation with small inductors and fast transient response.","working_principle":"The LT8610AIMSE-5 operates as a constant-frequency, peak current mode synchronous buck regulator. At each clock cycle the top NMOS switch turns on and inductor current ramps up until the peak current comparator trips. The top switch then turns off and the synchronous bottom NMOS switch turns on, allowing inductor current to decay. An error amplifier compares the VFB pin voltage against the internal reference to set the peak current threshold. For light-load efficiency, Burst Mode operation (SYNC pin low) shuts down all switching circuitry between bursts, reducing input supply current to just 2.5 \u00b5A while keeping output ripple below 10 mVp-p. In pulse-skip mode (SYNC high or external clock), the oscillator runs continuously and skips pulses at light loads. The EN\/UV pin features a precise 1 V threshold for programmable input undervoltage lockout, and the PG flag indicates when VOUT is within +\/-9% of the target. Frequency foldback protects against overload by reducing the switching frequency when the feedback voltage is low.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>BST<\/td>Power<\/td>Bootstrap capacitor for top switch driver<\/td><\/tr>
      2<\/td>SW<\/td>Output<\/td>Switch node (inductor connection)<\/td><\/tr>
      3<\/td>SW<\/td>Output<\/td>Switch node (inductor connection)<\/td><\/tr>
      4<\/td>BIAS<\/td>Input<\/td>Internal regulator supply; connect to VOUT if >= 3.3 V<\/td><\/tr>
      5<\/td>TR\/SS<\/td>Analog<\/td>Soft-start capacitor; programs output ramp rate<\/td><\/tr>
      6<\/td>PG<\/td>Output<\/td>Power good flag (open-drain)<\/td><\/tr>
      7<\/td>RT<\/td>Analog<\/td>Switching frequency set resistor<\/td><\/tr>
      8<\/td>SYNC<\/td>Input<\/td>Mode select: low = Burst, high = pulse-skip, clock = sync<\/td><\/tr>
      9<\/td>VFB<\/td>Input<\/td>Feedback voltage sense (connect to VOUT for fixed 5 V)<\/td><\/tr>
      10<\/td>EN\/UV<\/td>Input<\/td>Enable \/ undervoltage lockout (1 V threshold)<\/td><\/tr>
      11<\/td>INTVCC<\/td>Power<\/td>Internal 3.4 V regulator decoupling pin<\/td><\/tr>
      12<\/td>VIN<\/td>Power<\/td>Input supply (3.4 V to 42 V)<\/td><\/tr>
      13<\/td>VIN<\/td>Power<\/td>Input supply<\/td><\/tr>
      14<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      15<\/td>GND<\/td>Ground<\/td>Signal ground<\/td><\/tr>
      16<\/td>GND<\/td>Ground<\/td>Signal ground<\/td><\/tr>
      17<\/td>GND (EP)<\/td>Ground<\/td>Exposed pad; solder to PCB ground plane<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive ECU 5 V Supply<\/strong>: 5 V rail generation from 12 V\/24 V battery for microcontrollers and sensors<\/li>
      • Industrial Point-of-Load<\/strong>: 5 V POL conversion from 24 V or 36 V industrial bus<\/li>
      • Battery-Powered Always-On<\/strong>: Ultra-low IQ standby systems where 2.5 \u00b5A drain preserves battery life<\/li>
      • General-Purpose Step-Down<\/strong>: Wide-input 5 V supply from wall adapters or unregulated sources<\/li>
      • Distributed Power Architecture<\/strong>: 5 V intermediate bus from 12 V\/24 V\/48 V backbone<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>VIN<\/th>IOUT<\/th>VOUT<\/th>IQ<\/th>Package<\/th>Notes<\/th><\/tr>
        LT8610AHMSE-5#PBF<\/td>Analog Devices<\/td>3.4-42 V<\/td>3.5 A<\/td>5 V<\/td>2.5 \u00b5A<\/td>MSOP-16<\/td>H-grade, 150C max<\/td><\/tr>
        LT8609AIMSE-5#PBF<\/td>Analog Devices<\/td>3.0-42 V<\/td>2 A<\/td>5 V<\/td>2.5 \u00b5A<\/td>MSOP-16<\/td>Lower current, wider VIN<\/td><\/tr>
        TPS54061DRBR<\/td>Texas Instruments<\/td>4.7-60 V<\/td>0.5 A<\/td>Adj<\/td>0.9 \u00b5A<\/td>VSON-8<\/td>Ultra-low IQ, lower current<\/td><\/tr>
        LTM8020MPV<\/td>Analog Devices<\/td>3.4-36 V<\/td>1 A<\/td>Adj<\/td>5 \u00b5A<\/td>BGA-25<\/td>uModule, lower current<\/td><\/tr>
        MAX17503ATC+<\/td>Analog Devices<\/td>4.5-60 V<\/td>2.5 A<\/td>Adj<\/td>3.1 \u00b5A<\/td>TDFN-12<\/td>Wider input range<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=8346"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8346\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8346"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}