{"id":7253,"date":"2026-06-23T08:02:41","date_gmt":"2026-06-23T08:02:41","guid":{"rendered":"https:\/\/materialparts.com\/tps6209733rwkr-2\/"},"modified":"2026-06-23T08:02:41","modified_gmt":"2026-06-23T08:02:41","slug":"tps6209733rwkr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps6209733rwkr-2\/","title":{"rendered":"TPS6209733RWKR"},"content":{"rendered":"

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

The TPS6209733RWKR from Texas Instruments is a 2A, 3.3V fixed-output synchronous buck converter with iDCS-Control in a 2mm x 2mm VQFN-HR (HotRod) package. With selectable switching frequency and forced PWM mode, it targets noise-sensitive and high-efficiency applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3 V fixed<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n2 A<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.5 V to 6.0 V<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n1.5 MHz to 2.5 MHz (selectable)<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 97%<\/td>\n<\/tr>\n
Output Voltage Accuracy<\/td>\n+\/-1%<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3.3V fixed output at 2A in tiny 2mm x 2mm VQFN-HR HotRod package<\/li>\n
  • iDCS-Control topology with forced PWM or power-save mode<\/li>\n
  • Up to 97% efficiency with synchronous rectification<\/li>\n
  • 1.5MHz to 2.5MHz selectable switching frequency via external resistor<\/li>\n
  • Programmable soft-start, output voltage tracking, and power good output<\/li>\n
  • 100% duty cycle for ultra-low dropout and output discharge function<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Point-of-load 3.3V regulation from 5V or Li-Ion input<\/li>\n
    • Noise-sensitive applications requiring forced PWM operation<\/li>\n
    • Portable and battery-powered equipment with power-save mode<\/li>\n
    • Space-constrained designs requiring 2mm x 2mm footprint<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS6209733RWKR from Texas Instruments is a 2A, 3.3V fixed-output synchronous buck converter with iDCS-Control in a 2mm x 2mm VQFN-HR (HotRod) package. With selectable switching frequency and forced PWM mode, it targets noise-sensitive and high-efficiency applications. Key Specifications Output Voltage 3.3 V fixed Output Current 2 A Input Voltage Range 2.5 V […]<\/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":[34,13],"tags":[],"chip_brand":[138],"class_list":["post-7253","post","type-post","status-publish","format-standard","hentry","category-battery-management-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"2A 3.3V sync buck, iDCS-Control, 2.5-6V in, VQFN-HR 2x2mm, 97% eff, 1.5-2.5MHz","date_code":"","package_case":"VQFN-HR (RWK) 11-pin (2.00 x 2.00 x 0.60 mm)","in_stock":2311,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/slvsen0b\/slvsen0b.pdf","price":"$0.94 @ 1ku","product_introduction":"The TPS6209733RWKR from Texas Instruments is a 2A, 3.3V fixed-output synchronous step-down converter in an ultra-compact 2mm x 2mm VQFN-HR (HotRod) 11-pin package. The device uses the iDCS-Control topology, which combines adaptive constant on-time control with an internal compensation network, providing stable operation with various output capacitor values including capacitances above 150uF. The converter operates in PWM mode at medium to heavy loads for low output voltage ripple, and automatically enters power-save mode at light loads to maintain high efficiency. A forced PWM mode is available for noise-critical applications requiring constant switching frequency. The switching frequency is selectable in the 1.5MHz to 2.5MHz range by an external resistor on the FSW pin, allowing optimization of efficiency and component size. The device achieves up to 97% efficiency with integrated synchronous rectification. The SS\/TR pin provides programmable soft-start to control inrush current and supports output voltage tracking configurations. The open-drain power good output indicates when the output is within regulation. Additional features include 100% duty cycle operation for ultra-low dropout, output discharge, hiccup short-circuit protection, and thermal shutdown.","working_principle":"The TPS6209733RWKR uses the iDCS-Control (indirect Direct Current Sensor Control) topology. (1) iDCS-Control: This proprietary topology combines adaptive constant on-time (COT) control with an internal DC regulation loop. The emulated current information is derived from the output voltage ripple and the on-time, eliminating the need for a sense resistor. (2) PWM Mode: At medium to heavy loads, the converter operates at a fixed switching frequency set by the external FSW resistor. The high-side and low-side MOSFETs switch alternately to regulate the output voltage. (3) Power-Save Mode: When the load current drops below the power-save threshold, the device enters a pulse-frequency modulation (PFM) mode where switching pulses are skipped to reduce switching losses. The high-side MOSFET turns on only when the output voltage drops below the threshold. (4) Forced PWM: When the FPWM pin is pulled high, the converter maintains continuous conduction mode regardless of load current, providing constant-frequency operation for noise-sensitive applications. (5) 100% Duty Cycle: When the input voltage approaches the output voltage, the high-side MOSFET stays on continuously, minimizing the dropout voltage.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>PG<\/td>O<\/td>Power good (open drain)<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input supply (2.5-6V)<\/td><\/tr>
      3<\/td>SW<\/td>O<\/td>Switch node<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td>Ground \/ thermal pad<\/td><\/tr>
      5<\/td>FB<\/td>I<\/td>Feedback (connect to VOUT for fixed 3.3V)<\/td><\/tr>
      6<\/td>EN<\/td>I<\/td>Enable<\/td><\/tr>
      7<\/td>SS\/TR<\/td>I<\/td>Soft-start \/ tracking<\/td><\/tr>
      8<\/td>FSW<\/td>I<\/td>Frequency select resistor<\/td><\/tr>
      9<\/td>FPWM<\/td>I<\/td>Force PWM mode select<\/td><\/tr>
      10<\/td>VOS<\/td>I<\/td>Output voltage sense<\/td><\/tr>
      11<\/td>PGND<\/td>Ground<\/td>Power ground<\/td><\/tr><\/table>","application_scenarios":"
      • Point-of-load 3.3V regulation from 5V or Li-Ion input at 2A in 2x2mm<\/li>
      • Noise-sensitive applications requiring forced PWM constant-frequency operation<\/li>
      • Portable and battery-powered equipment with power-save mode at 97% efficiency<\/li>
      • Space-constrained designs requiring HotRod VQFN-HR 2mm x 2mm footprint<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS6209718RWKR<\/td>VQFN-HR-11<\/td>1.8V fixed output version<\/td><\/tr>
        TI<\/td>TPS62851Y0ARATR<\/td>QFN-6<\/td>Newer, 6V, 0.5-2A<\/td><\/tr>
        TI<\/td>TPS6209833RWKR<\/td>VQFN-HR-11<\/td>3A version, same family<\/td><\/tr>
        MPS<\/td>MP2143GD-Z<\/td>QFN-8<\/td>2A, 3.3V, similar<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7253","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=7253"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7253\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7253"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}