{"id":8361,"date":"2026-06-28T12:42:59","date_gmt":"2026-06-28T12:42:59","guid":{"rendered":"https:\/\/materialparts.com\/lmr10515ymfe-nopb\/"},"modified":"2026-06-28T12:42:59","modified_gmt":"2026-06-28T12:42:59","slug":"lmr10515ymfe-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lmr10515ymfe-nopb\/","title":{"rendered":"LMR10515YMFE\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

The LMR10515YMFE\/NOPB from Texas Instruments is a 5.5 V input, 1.5 A step-down regulator in a tiny SOT-23-5 package. Operating at 3 MHz switching frequency, it achieves up to 93% efficiency with an output range of 0.6 V to 4.5 V and only 30 nA shutdown current, ideal for space-constrained point-of-load applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Input Voltage Range<\/td>\n3.0 V to 5.5 V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.6 V to 4.5 V (adjustable)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n1.5 A<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n3 MHz (Y version)<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n30 nA (typ)<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 93%<\/td>\n<\/tr>\n
PMOS RDS(on)<\/td>\n130 m\u03a9<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-23-5<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 3 MHz high-frequency operation enables tiny inductors and capacitors<\/li>\n
  • 30 nA ultra-low shutdown current preserves battery life<\/li>\n
  • Internal 130 m\u03a9 PMOS switch eliminates external FET<\/li>\n
  • Current-mode PWM with internal compensation<\/li>\n
  • Internal soft-start reduces inrush current<\/li>\n
  • Output over-voltage, current limit, and thermal shutdown protection<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Point-of-load conversion from 3.3 V and 5 V rails<\/li>\n
    • Space-constrained portable electronics<\/li>\n
    • Battery-powered equipment<\/li>\n
    • Smart meters and IoT devices<\/li>\n
    • Industrial distributed power<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LMR10515YMFE\/NOPB from Texas Instruments is a 5.5 V input, 1.5 A step-down regulator in a tiny SOT-23-5 package. Operating at 3 MHz switching frequency, it achieves up to 93% efficiency with an output range of 0.6 V to 4.5 V and only 30 nA shutdown current, ideal for space-constrained point-of-load applications. Key […]<\/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-8361","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"5.5Vin, 1.5A buck regulator, 3MHz, SOT-23-5, 30nA shutdown, adjustable 0.6-4.5V","date_code":"","package_case":"SOT-23-5 (2.90 x 1.60 x 1.00 mm)","in_stock":7768,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lmr10515.pdf","price":"$0.50 @ 1ku","product_introduction":"The LMR10515YMFE\/NOPB is a monolithic 3 MHz step-down DC-DC converter from Texas Instruments in a tiny 5-pin SOT-23 package. The Y-suffix version operates at 3 MHz switching frequency, allowing the use of chip-scale inductors and capacitors for the smallest possible solution footprint. With an input range of 3.0 V to 5.5 V and adjustable output from 0.6 V to 4.5 V at up to 1.5 A, it is optimized for point-of-load conversion from 3.3 V and 5 V logic rails in space-constrained systems. The internal 130 m\u03a9 PMOS power switch delivers up to 93% efficiency while eliminating the need for an external MOSFET. The 30 nA shutdown current makes it suitable for always-on battery-powered applications. Internal soft-start, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection ensure robust operation. Current-mode PWM control with internal compensation requires only 4 external components for a complete solution.","working_principle":"The LMR10515YMFE operates as a current-mode PWM buck converter with an integrated PMOS high-side switch and external Schottky catch diode. At each 3 MHz clock cycle, the PMOS switch turns on and inductor current ramps up. The current-mode control loop compares the inductor current ramp against an error amplifier output to determine the switch-off point. When the PMOS turns off, inductor current flows through the external Schottky diode. The error amplifier adjusts the peak current threshold based on the difference between the feedback voltage (from the resistor divider) and the 0.6 V internal reference. The internal compensation network provides stable operation with a wide range of output capacitors. In shutdown mode (EN pin low), all internal circuitry is disabled, reducing input current to 30 nA. The 30 ns minimum on-time supports high step-down ratios even at 3 MHz.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>SW<\/td>Switch node; connect to inductor and Schottky catch diode<\/td><\/tr>
      2<\/td>GND<\/td>Signal and power ground<\/td><\/tr>
      3<\/td>FB<\/td>Feedback input; connect to resistor divider from VOUT to set output voltage<\/td><\/tr>
      4<\/td>EN<\/td>Enable input; logic high = enabled, logic low = shutdown (30 nA)<\/td><\/tr>
      5<\/td>VIN<\/td>Input supply voltage (3.0 V to 5.5 V)<\/td><\/tr><\/table>","application_scenarios":"
      • Point-of-Load Conversion<\/strong>: 1.2 V or 1.8 V core supply from 3.3 V rail in FPGA and processor-based systems<\/li>
      • Portable Electronics<\/strong>: Battery-powered devices where 30 nA shutdown preserves energy during sleep<\/li>
      • IoT and Smart Meters<\/strong>: Compact DC-DC conversion in space-limited wireless sensor nodes<\/li>
      • Industrial Distributed Power<\/strong>: POL regulators near the load in distributed power architectures<\/li>
      • Wearable Devices<\/strong>: Ultra-small solution size for smartwatch and fitness tracker power management<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>VIN<\/th>IOUT<\/th>Fsw<\/th>Package<\/th>Notes<\/th><\/tr>
        LMR10515XMFE\/NOPB<\/td>Texas Instruments<\/td>3-5.5 V<\/td>1.5 A<\/td>1.6 MHz<\/td>SOT-23-5<\/td>1.6 MHz version<\/td><\/tr>
        TPS62260DRVR<\/td>Texas Instruments<\/td>2-6 V<\/td>1 A<\/td>3.3 MHz<\/td>SON-6<\/td>Higher VIN, lower IOUT<\/td><\/tr>
        MAX8863EUT30+T<\/td>Analog Devices<\/td>2.5-6.5 V<\/td>0.5 A<\/td>2 MHz<\/td>SOT-23-5<\/td>Lower current, higher VIN<\/td><\/tr>
        AP3401KTR-G1<\/td>Diodes Inc<\/td>2.7-5.5 V<\/td>1.5 A<\/td>1.5 MHz<\/td>SOT-23-6<\/td>Similar performance<\/td><\/tr>
        BD70522GUL-E2<\/td>Rohm<\/td>2.5-5.5 V<\/td>0.5 A<\/td>3 MHz<\/td>VCSP-8<\/td>Lower IOUT, smaller package<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=8361"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8361\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=8361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=8361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=8361"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=8361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}