{"id":2501,"date":"2026-05-21T01:20:23","date_gmt":"2026-05-21T01:20:23","guid":{"rendered":"https:\/\/materialparts.com\/lm5007mmx-nopb\/"},"modified":"2026-05-21T01:20:23","modified_gmt":"2026-05-21T01:20:23","slug":"lm5007mmx-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm5007mmx-nopb\/","title":{"rendered":"LM5007MMX\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

The LM5007MMX\/NOPB from Texas Instruments is a 80V, 500mA step-down switching regulator with integrated 80V N-channel MOSFET, constant on-time (COT) control, 525kHz switching frequency, and smart current limit in an 8-pin VSSOP package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Fabricante<\/td>\nTexas Instruments<\/td>\n<\/tr>\n
Topology<\/td>\nBuck (Step-Down)<\/td>\n<\/tr>\n
Input Voltage Range<\/td>\n9.5V to 80V<\/td>\n<\/tr>\n
Output Voltage<\/td>\nAdjustable (2.5V to 75V)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n500mA<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n525kHz typical<\/td>\n<\/tr>\n
Integrated MOSFET<\/td>\n80V N-channel<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n2.5mA typical<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n25uA typical<\/td>\n<\/tr>\n
Control Mode<\/td>\nConstant On-Time (COT)<\/td>\n<\/tr>\n
Paquete<\/td>\n8-VSSOP (3.0 x 3.0mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 80V maximum input voltage with integrated 80V MOSFET<\/li>\n
  • 500mA output current<\/li>\n
  • Constant on-time (COT) control with no compensation required<\/li>\n
  • 525kHz pseudo-fixed switching frequency<\/li>\n
  • Smart current limit with reduced on-time during fault<\/li>\n
  • Internal soft-start (2ms typical)<\/li>\n
  • Thermal shutdown protection<\/li>\n
  • Undervoltage lockout (6.3V\/5.4V)<\/li>\n
  • High-voltage bias regulator with external supply option<\/li>\n
  • Small 8-pin VSSOP package<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Industrial and automotive power supplies<\/li>\n
    • 48V telecom bus regulation<\/li>\n
    • High-voltage battery-powered systems<\/li>\n
    • LED driver buck regulators<\/li>\n
    • Off-line auxiliary power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM5007MMX\/NOPB from Texas Instruments is a 80V, 500mA step-down switching regulator with integrated 80V N-channel MOSFET, constant on-time (COT) control, 525kHz switching frequency, and smart current limit in an 8-pin VSSOP package. Key Specifications Manufacturer Texas Instruments Topology Buck (Step-Down) Input Voltage Range 9.5V to 80V Output Voltage Adjustable (2.5V to 75V) […]<\/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-2501","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"80V 500mA buck regulator, integrated MOSFET, COT control, 525kHz, VSSOP-8","date_code":"","package_case":"8-VSSOP (3.0 x 3.0 x 0.9mm)","in_stock":6240,"datasheet":"https:\/\/www.ti.com\/product\/LM5007","price":"$1.85 @ 1ku","product_introduction":"The Texas Instruments LM5007MMX\/NOPB is a step-down switching regulator with an integrated 80V N-channel MOSFET, capable of delivering 500mA output current. The wide 9.5V to 80V input range makes it suitable for industrial, telecom (48V bus), and automotive applications. The constant on-time (COT) control architecture eliminates the need for loop compensation components, simplifying design. The internal high-voltage start-up bias regulator operates from the input supply and switches to an external bias when available for improved efficiency. The smart current limit feature reduces the on-time during overload, limiting both switch current and power dissipation. The 525kHz pseudo-fixed switching frequency provides a good balance between efficiency and component size.","working_principle":"The LM5007MMX\/NOPB operates as a constant on-time (COT) buck converter: 1) On-Time Generation: The on-time is set by an internal one-shot timer, programmed by an external RON resistor connected to VIN. The on-time is inversely proportional to VIN, naturally maintaining approximately constant switching frequency (525kHz). 2) Regulation: The FB pin monitors the output voltage through a resistor divider. When FB drops below the 2.5V internal reference, a new on-time cycle is initiated. This hysteretic control inherently provides stability without external compensation. 3) Current Limit: The smart current limit monitors the switch current. When the peak current exceeds the threshold, the on-time is reduced to limit average current while maintaining switching frequency, preventing thermal runaway during sustained faults. 4) Bias Regulator: The internal VCC regulator starts from VIN using an internal 80V LDO, then optionally switches to an external VCC supply (from the output) for improved efficiency at higher input voltages.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>SW<\/td>Output<\/td>Switch output (connect to inductor and Schottky)<\/td><\/tr>
      2<\/td>BOOT<\/td>Capacitor<\/td>Bootstrap capacitor (connect to SW)<\/td><\/tr>
      3<\/td>NC<\/td>-<\/td>No connection<\/td><\/tr>
      4<\/td>VIN<\/td>Power<\/td>Input supply (9.5V to 80V)<\/td><\/tr>
      5<\/td>RON<\/td>Input<\/td>On-time programming resistor (connect to VIN)<\/td><\/tr>
      6<\/td>FB<\/td>Input<\/td>Feedback (2.5V reference)<\/td><\/tr>
      7<\/td>VCC<\/td>Power<\/td>Internal bias regulator output \/ external bias input<\/td><\/tr>
      8<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • 48V telecom bus to 5V\/3.3V point-of-load conversion<\/li>
      • Automotive 12V\/24V battery to logic supply regulation<\/li>
      • Industrial 24V to 12V step-down with 80V transient protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM5008AMMX\/NOPB<\/td>VSSOP-8<\/td>95V, 350mA, higher voltage<\/td><\/tr>
        TI<\/td>LM5009AMMX\/NOPB<\/td>VSSOP-8<\/td>95V, 150mA, lower current<\/td><\/tr>
        TI<\/td>LMR16030PDDAR<\/td>HSOIC-8<\/td>60V, 3A, higher current<\/td><\/tr>
        Monolithic Power<\/td>MP9486GN-Z<\/td>SOIC-8<\/td>75V, 1A buck, non-isolated<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2501","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=2501"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2501\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=2501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=2501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=2501"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=2501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}