{"id":2975,"date":"2026-05-29T00:34:58","date_gmt":"2026-05-29T00:34:58","guid":{"rendered":"https:\/\/materialparts.com\/tps62802ykar\/"},"modified":"2026-05-29T00:34:58","modified_gmt":"2026-05-29T00:34:58","slug":"tps62802ykar","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps62802ykar\/","title":{"rendered":"TPS62802YKAR"},"content":{"rendered":"

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

The TPS62802YKAR from Texas Instruments is an ultra-low quiescent current step-down converter operating from 1.75V to 5.5V input, delivering up to 1A output. With only 2.3\u03bcA operating quiescent current and 4MHz switching frequency, it achieves extremely small solution size in a 0.7×1.05mm DSBGA-6 package. The innovative R2D converter allows flexible output voltage selection via a single external resistor.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u62d3\u6251\u7ed3\u6784<\/td>\nBuck (Step-Down)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n1.75V ~ 5.5V<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\n1.8V ~ 3.3V (16 selectable via R2D)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n1A<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n4 MHz<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n2.3 \u03bcA (typical)<\/td>\n<\/tr>\n
Output Voltage Accuracy<\/td>\n1%<\/td>\n<\/tr>\n
\u63a7\u5236\u6a21\u5f0f<\/td>\nDCS-Control<\/td>\n<\/tr>\n
Synchronous Rectifier<\/td>\nYes<\/td>\n<\/tr>\n
Duty Cycle (max)<\/td>\n100%<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C ~ 125\u00b0C (TJ)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n6-DSBGA (1.05×0.70mm)<\/td>\n<\/tr>\n
\u90e8\u4ef6\u72b6\u6001<\/td>\n\u6d3b\u8dc3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 2.3\u03bcA ultra-low operating quiescent current<\/li>\n
  • 4MHz switching frequency enables tiny external components<\/li>\n
  • R2D converter: 16 selectable output voltages via one resistor<\/li>\n
  • 1% output voltage accuracy<\/li>\n
  • Smart enable pin for mode selection (Power Save \/ Forced PWM)<\/li>\n
  • Output discharge function<\/li>\n
  • 100% duty cycle operation for lowest dropout<\/li>\n
  • Supports less than 0.6mm design height<\/li>\n
  • Less than 5mm\u00b2 total solution size<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Wearable electronics and fitness trackers<\/li>\n
    • IoT sensor nodes and battery-powered devices<\/li>\n
    • Smartphone and tablet sub-rail regulation<\/li>\n
    • Portable medical devices<\/li>\n
    • Ultra-compact embedded systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS62802YKAR from Texas Instruments is an ultra-low quiescent current step-down converter operating from 1.75V to 5.5V input, delivering up to 1A output. With only 2.3\u03bcA operating quiescent current and 4MHz switching frequency, it achieves extremely small solution size in a 0.7×1.05mm DSBGA-6 package. The innovative R2D converter allows flexible output voltage selection […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-2975","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"1.75V-5.5V, 1A ultra-low IQ buck converter, 2.3\u03bcA Iq, 4MHz, DSBGA-6 (1.05x0.70mm), R2D VOUT selection","date_code":"","package_case":"6-DSBGA (1.05x0.70mm)","in_stock":4179,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps62801.pdf","price":"\/tmp\/tmpgrnmkkh9.sh.71 @ 1ku","product_introduction":"The TPS62802YKAR is an ultra-low quiescent current step-down converter from Texas Instruments designed for battery-powered and space-constrained applications. Operating from a 1.75V to 5.5V input, it delivers up to 1A output current with a typical quiescent current of just 2.3\u03bcA. The innovative R2D (Resistor-to-Digital) converter allows the selection of 16 internally set output voltages (1.8V to 3.3V) by connecting a single external resistor to the VSEL\/MODE pin, eliminating the need for a traditional resistor divider and improving output voltage accuracy to 1%. The 4MHz switching frequency enables the use of tiny 0.47\u03bcH inductors and small capacitors, achieving a total solution size of less than 5mm\u00b2. The DCS-Control topology provides seamless transition between Power Save Mode and Forced PWM Mode.","working_principle":"The TPS62802 uses TI's DCS-Control topology with an integrated R2D (Resistor-to-Digital) converter for output voltage programming. The R2D converter reads the resistance value connected to the VSEL\/MODE pin and selects one of 16 pre-programmed output voltages from an internal lookup table. This approach provides better accuracy than a traditional external resistor divider. The VSEL\/MODE pin serves dual purposes: during startup, it determines the output voltage via the connected resistor; after startup, pulling the pin high forces PWM mode for lowest output ripple. In Power Save Mode at light loads, the device operates in PFM mode with 2.3\u03bcA quiescent current, generating single switching pulses followed by sleep periods. The output discharge function ensures a defined output voltage down-ramp when the device is disabled.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      A1<\/td>VIN<\/td>PWR<\/td>Input supply voltage (1.75V-5.5V)<\/td><\/tr>
      A2<\/td>GND<\/td>GND<\/td>Ground<\/td><\/tr>
      B1<\/td>EN<\/td>I<\/td>Enable (active high)<\/td><\/tr>
      B2<\/td>VSEL\/MODE<\/td>I<\/td>Voltage select resistor \/ Mode control<\/td><\/tr>
      C1<\/td>SW<\/td>O<\/td>Switch node (connect to inductor)<\/td><\/tr>
      C2<\/td>VOS<\/td>I<\/td>Output voltage sense<\/td><\/tr><\/table>","application_scenarios":"
      • Wearable Devices<\/b>: Ultra-compact POL conversion with sub-0.6mm height for smartwatches and fitness bands<\/li>
      • IoT Sensors<\/b>: 2.3\u03bcA quiescent current extends battery life in always-on wireless sensor nodes<\/li>
      • Smartphones<\/b>: Sub-rail regulation for processor I\/O and memory rails from Li-ion battery<\/li>
      • Portable Medical<\/b>: Low-power conversion for glucose monitors and pulse oximeters<\/li>
      • Compact Embedded<\/b>: Less than 5mm\u00b2 solution size for space-constrained PCB layouts<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TPS62800YKAR<\/td>Texas Instruments<\/td>0.4V-0.775V output range, same package<\/td><\/tr>
        TPS62801YKAR<\/td>Texas Instruments<\/td>0.8V-1.55V output range, same package<\/td><\/tr>
        TPS62808YKAR<\/td>Texas Instruments<\/td>1.5MHz version, 1.8V-3.3V output<\/td><\/tr>
        NCP1840AMUTAG<\/td>onsemi<\/td>1A buck, 2MHz, DFN-6, similar size<\/td><\/tr>
        MAX38640AATA+T<\/td>Analog Devices<\/td>0.5A, 330nA IQ, TDFN-6<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2975","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=2975"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2975\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2975"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}