{"id":8468,"date":"2026-06-29T02:13:59","date_gmt":"2026-06-29T02:13:59","guid":{"rendered":"https:\/\/materialparts.com\/tps61093dskt\/"},"modified":"2026-06-29T06:27:54","modified_gmt":"2026-06-29T06:27:54","slug":"tps61093dskt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps61093dskt\/","title":{"rendered":"TPS61093DSKT"},"content":{"rendered":"

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

The TPS61093DSKT from Texas Instruments is a high-efficiency synchronous boost converter with constant current output capability, designed for driving LED strings or charging supercapacitors. It operates from a 1.8V to 6V input range in a SOT-23-6 (DSK) package, providing up to 28V output voltage and configurable current regulation for single or multi-cell LED applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u62d3\u6251\u7ed3\u6784<\/td>\nSynchronous Boost Converter<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n1.8V to 6V<\/td>\n<\/tr>\n
Output Voltage<\/td>\nUp to 28V<\/td>\n<\/tr>\n
Switch Current<\/td>\n1A (integrated)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n1 MHz typ<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 93%<\/td>\n<\/tr>\n
Current Regulation<\/td>\nConstant current mode for LEDs<\/td>\n<\/tr>\n
PWM Dimming<\/td>\nYes (via CTRL pin)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-6 (DSK) (2.9 x 1.6 x 1.0 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated synchronous rectifier for high efficiency<\/li>\n
  • Constant current output with sense resistor<\/li>\n
  • PWM brightness dimming via CTRL pin<\/li>\n
  • True shutdown disconnects load from input<\/li>\n
  • 1 MHz switching frequency minimizes inductor size<\/li>\n
  • Over-temperature and over-current protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • White LED backlight for small LCD displays<\/li>\n
    • LED flashlight and camera flash drivers<\/li>\n
    • Supercapacitor chargers<\/li>\n
    • Battery-powered LED lighting<\/li>\n
    • Portable equipment display illumination<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS61093DSKT from Texas Instruments is a high-efficiency synchronous boost converter with constant current output capability, designed for driving LED strings or charging supercapacitors. It operates from a 1.8V to 6V input range in a SOT-23-6 (DSK) package, providing up to 28V output voltage and configurable current regulation for single or multi-cell LED […]<\/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":[138],"class_list":["post-8468","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Synchronous boost converter, 1.8-6V in, 28V out, constant current LED driver, SOT-23-6","date_code":"","package_case":"SOT-23-6 (DSK) (2.9 x 1.6 x 1.0 mm)","in_stock":13087,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps61093.pdf","price":"$0.85 @ 1ku","product_introduction":"The Texas Instruments TPS61093DSKT is a high-efficiency synchronous boost converter specifically designed for LED driving applications requiring constant current regulation. Operating from input voltages as low as 1.8V, it can boost the output up to 28V, making it suitable for single-cell to multi-cell alkaline, NiMH, or Li-Ion battery-powered LED lighting. The integrated synchronous rectifier eliminates the external Schottky diode, improving efficiency up to 93% while reducing component count. The device provides constant current regulation via an external sense resistor, with PWM dimming capability through the CTRL pin for brightness control. The true shutdown feature disconnects the LED string from the input supply, eliminating leakage current during off state.","working_principle":"The TPS61093DSKT operates as a current-mode synchronous boost converter. During the on-time, the internal NMOS switch connects the inductor to ground, storing energy in the inductor's magnetic field. During the off-time, the internal PMOS synchronous rectifier connects the inductor to the output, transferring stored energy to the output capacitor and LED load. The current regulation loop senses the voltage across an external current-sense resistor in series with the LED string and adjusts the switch duty cycle to maintain the programmed LED current. The 1 MHz switching frequency allows the use of small 2.2 uH to 4.7 uH chip inductors. PWM dimming is achieved by toggling the CTRL pin, which enables and disables the switching cycle while maintaining output regulation between dimming pulses.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>SW<\/td>Switch Node (connect to inductor)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>FB\/ISENSE<\/td>Current Sense Feedback Input<\/td><\/tr>
      4<\/td>CTRL<\/td>Enable \/ PWM Dimming Control<\/td><\/tr>
      5<\/td>VIN<\/td>Input Supply (1.8-6V)<\/td><\/tr>
      6<\/td>OUT<\/td>Output Voltage \/ LED Anode Connection<\/td><\/tr><\/table>","application_scenarios":"
      • LCD Backlight<\/b>: Driving 6-8 white LED strings from a single Li-Ion cell in smartphones and portable media players with PWM dimming for adaptive brightness<\/li>
      • LED Flashlight<\/b>: Constant current drive for high-power white LEDs from 2-cell alkaline or single Li-Ion batteries with true shutdown for zero standby drain<\/li>
      • Camera Flash<\/b>: Burst-mode LED current drive for mobile phone camera flash with CTRL pin pulsed for strobe operation<\/li>
      • Supercapacitor Charger<\/b>: Constant current charging of supercapacitors from low-voltage sources with automatic voltage limiting<\/li>
      • Wearable Display<\/b>: Compact SOT-23-6 footprint and 1.8V minimum input for smartwatch and fitness tracker display illumination<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Vin (V)<\/th>Vout (V)<\/th>Isw (A)<\/th><\/tr>
        TPS61094DSKR<\/td>TI<\/td>1.8-5.5<\/td>28<\/td>1.5<\/td><\/tr>
        MT3608<\/td>Aerosemi<\/td>2-24<\/td>28<\/td>4<\/td><\/tr>
        SX1308<\/td>Silergy<\/td>2-24<\/td>28<\/td>4<\/td><\/tr>
        LTC3490EMS8<\/td>ADI<\/td>0.9-3.2<\/td>7<\/td>0.5<\/td><\/tr>
        CAT4139TD-T3<\/td>onsemi<\/td>2.8-5.5<\/td>22<\/td>0.75<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8468","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=8468"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8468\/revisions"}],"predecessor-version":[{"id":8590,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8468\/revisions\/8590"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8468"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}