{"id":9389,"date":"2026-07-03T06:18:25","date_gmt":"2026-07-03T06:18:25","guid":{"rendered":"https:\/\/materialparts.com\/tps63802dlar\/"},"modified":"2026-07-03T07:37:59","modified_gmt":"2026-07-03T07:37:59","slug":"tps63802dlar","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps63802dlar\/","title":{"rendered":"TPS63802DLAR"},"content":{"rendered":"

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

The TPS63802DLAR is a 2A high-efficiency, low-Iq non-inverting buck-boost converter from Texas Instruments. It operates over a wide input voltage range of 1.3V to 5.5V and provides an adjustable output from 1.8V to 5.2V. The device uses a peak current mode control with a 4-switch H-bridge topology, seamlessly transitioning between buck, buck-boost, and boost modes. Packaged in a HotRod QFN (DLA, 3x2mm), it achieves a tiny 21.5mm2 total solution size.<\/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>\n4-switch non-inverting buck-boost<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n1.3V to 5.5V (startup >1.8V)<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\n1.8V to 5.2V (adjustable via resistor divider)<\/td>\n<\/tr>\n
Max Output Current<\/td>\n2A (VIN >= 2.3V, VOUT = 3.3V)<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n11 uA (typical)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n~2 MHz<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 95%<\/td>\n<\/tr>\n
Mode Control<\/td>\nAuto PFM\/PWM or forced PWM<\/td>\n<\/tr>\n
Inductor<\/td>\n0.47 uH (tiny external component)<\/td>\n<\/tr>\n
Min Output Capacitor<\/td>\n22 uF<\/td>\n<\/tr>\n
Protection<\/td>\nOVP, OTP, true shutdown, current limit<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nHotRod QFN (DLA, 3x2mm, 10 pins)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +125C (junction)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Wide 1.3V-5.5V input with seamless buck\/boost transitions<\/li>\n
  • 11uA ultra-low quiescent current for long battery life<\/li>\n
  • 2A output current with only 0.47uH inductor and 22uF capacitor<\/li>\n
  • HotRod QFN package minimizes loop inductance for low EMI<\/li>\n
  • True shutdown with load disconnect (zero Iout in shutdown)<\/li>\n
  • Power save mode (PFM) for highest light-load efficiency<\/li>\n
  • Defined 4-cycle buck-boost mode reduces output ripple<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • System pre-regulator for smartphones and tablets<\/li>\n
    • Battery-powered IoT devices (Li-Ion, LiMnO2 cells)<\/li>\n
    • POS terminal and EFT power supply<\/li>\n
    • Optical module TEC\/TEM supply<\/li>\n
    • Fingerprint sensor and camera module power<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS63802DLAR is a 2A high-efficiency, low-Iq non-inverting buck-boost converter from Texas Instruments. It operates over a wide input voltage range of 1.3V to 5.5V and provides an adjustable output from 1.8V to 5.2V. The device uses a peak current mode control with a 4-switch H-bridge topology, seamlessly transitioning between buck, buck-boost, and […]<\/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":[535],"chip_brand":[138],"class_list":["post-9389","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-tps63802dlar","chip_brand-ti"],"acf":{"brief_explanation":"2A buck-boost converter, 1.3-5.5V in, 1.8-5.2V out, 11uA Iq, HotRod QFN 3x2mm, true shutdown","date_code":"25+","package_case":"HotRod QFN-10 (DLA, 3.0 x 2.0 x 0.9 mm)","in_stock":35015,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps63802.pdf","price":"$1.80 @ 1ku","product_introduction":"The TPS63802DLAR is a 2A high-efficiency buck-boost converter from Texas Instruments, operating from 1.3V to 5.5V input and providing adjustable output from 1.8V to 5.2V. Its 11uA quiescent current enables excellent light-load efficiency for battery-powered systems. The 4-switch H-bridge topology seamlessly transitions between buck, buck-boost, and boost modes with defined mode thresholds and hysteresis to minimize output ripple. The HotRod QFN package (3x2mm) with only a 0.47uH inductor and 22uF output capacitor achieves a total solution size of just 21.5mm2.","working_principle":"The TPS63802DLAR uses a 4-switch non-inverting buck-boost topology with peak current mode control. Four integrated MOSFET switches (Q1-Q4) form an H-bridge between VIN, the inductor, and VOUT. When VIN > VOUT, the converter operates in buck mode (Q1\/Q2 switching, Q4 always on, Q3 off). When VIN < VOUT, it operates in boost mode (Q3\/Q4 switching, Q1 always on, Q2 off). When VIN is approximately equal to VOUT, the device enters a defined 4-cycle buck-boost mode: TON (boost-charge: Q2+Q3 on, inductor current ramps up), TOFF (buck-discharge: Q1+Q4 on, inductor current ramps down), and TCOM (Q1+Q4 on, VIN connected to VOUT). Mode transitions occur at defined thresholds with hysteresis to prevent oscillation between modes. The 11uA quiescent current is achieved in power-save mode (PFM), where the converter skips switching cycles at light loads to maintain regulation with minimum switching losses. Forced PWM mode can be selected for applications requiring constant switching frequency and minimum output ripple. True shutdown disconnects the load from the input via the switch topology, reducing output current to zero.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>VIN<\/td>Power<\/td>Input voltage (1.3-5.5V)<\/td><\/tr>\n
      2<\/td>VOUT<\/td>Power<\/td>Output voltage (1.8-5.2V)<\/td><\/tr>\n
      3<\/td>GND<\/td>Ground<\/td>Power ground and thermal pad<\/td><\/tr>\n
      4<\/td>FB<\/td>Analog<\/td>Feedback voltage input (VREF = 500mV)<\/td><\/tr>\n
      5<\/td>EN<\/td>Digital<\/td>Enable input (active high, precise threshold)<\/td><\/tr>\n
      6<\/td>MODE<\/td>Digital<\/td>Mode select: Low=PFM\/PWM auto, High=forced PWM<\/td><\/tr>\n
      7<\/td>PG<\/td>Digital<\/td>Power-good open-drain output<\/td><\/tr>\n
      8<\/td>L1<\/td>Power<\/td>Inductor connection (VIN side)<\/td><\/tr>\n
      9<\/td>L2<\/td>Power<\/td>Inductor connection (VOUT side)<\/td><\/tr>\n
      10<\/td>AGND<\/td>Ground<\/td>Analog ground<\/td><\/tr>\n<\/table>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      Li-Ion Powered IoT<\/td>3.3V rail from 2.7-4.2V battery<\/td>Buck-boost, 2A, 11uA Iq, tiny solution<\/td><\/tr>\n
      Smartphone Pre-reg<\/td>System voltage stabilizer<\/td>2A, forced PWM, 3x2mm HotRod<\/td><\/tr>\n
      POS Terminal<\/td>Main 3.3V\/5V supply from battery<\/td>2A, 1.3V min input, true shutdown<\/td><\/tr>\n
      Optical Module<\/td>TEC\/TEM driver supply<\/td>Bidirectional current, forced PWM<\/td><\/tr>\n
      EFT Terminal<\/td>Battery to system power conversion<\/td>1.3-5.5V input, 2A, 21.5mm2 solution<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
      TPS63805DLAR<\/td>TI<\/td>Similar, optimized for smallest solution (19.5mm2)<\/td><\/tr>\n
      TPS63806DLAR<\/td>TI<\/td>2.5A, optimized for load transients<\/td><\/tr>\n
      TPS63020DSJR<\/td>TI<\/td>2.5A buck-boost, older generation, larger package<\/td><\/tr>\n
      LTC3533EGN#PBF<\/td>Analog Devices<\/td>2A buck-boost, 2.4-5.5V in, SSOP-16<\/td><\/tr>\n
      MAX77827ENJ+T<\/td>Analog Devices<\/td>2A buck-boost, 2.5-5.5V in, WLP<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9389","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=9389"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9389\/revisions"}],"predecessor-version":[{"id":9417,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9389\/revisions\/9417"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9389"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}