{"id":3733,"date":"2026-06-08T02:48:19","date_gmt":"2026-06-08T02:48:19","guid":{"rendered":"https:\/\/materialparts.com\/lm2596t-5-0\/"},"modified":"2026-06-08T02:48:19","modified_gmt":"2026-06-08T02:48:19","slug":"lm2596t-5-0","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/lm2596t-5-0\/","title":{"rendered":"LM2596T-5.0"},"content":{"rendered":"

Productos<\/h2>\n

The LM2596T-5.0 from Texas Instruments is a SIMPLE SWITCHER 4.5V to 40V, 3A step-down voltage regulator with fixed 5V output. It operates at 150kHz fixed frequency, requires only 4 external components, and is available in a 5-pin TO-220 through-hole package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Topology<\/td>\nStep-Down (Buck)<\/td>\n<\/tr>\n
Input Voltage<\/td>\n4.5V to 40V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n5V (fixed, +\/-4%)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n3A<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n150kHz (fixed)<\/td>\n<\/tr>\n
Efficiency<\/td>\n80% at 12Vin, 5Vout, 3A<\/td>\n<\/tr>\n
Standby Current<\/td>\n80uA (typ)<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n5mA (typ)<\/td>\n<\/tr>\n
Switch Saturation Voltage<\/td>\n1.5V (max at 3A)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to 125 C (junction)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Fixed 5V output with +\/-4% tolerance<\/li>\n
  • 3A output load current capability<\/li>\n
  • 150kHz fixed switching frequency<\/li>\n
  • Requires only 4 external components<\/li>\n
  • TTL-level shutdown capability<\/li>\n
  • 80uA standby current in shutdown mode<\/li>\n
  • Internal frequency compensation<\/li>\n
  • Thermal shutdown and current-limit protection<\/li>\n
  • Uses readily available standard inductors<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • 5V logic power supplies from 12V or 24V<\/li>\n
    • Battery-powered equipment voltage regulation<\/li>\n
    • Set-top boxes and CPE equipment<\/li>\n
    • LCD displays and peripherals<\/li>\n
    • Automotive and industrial power<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM2596T-5.0 from Texas Instruments is a SIMPLE SWITCHER 4.5V to 40V, 3A step-down voltage regulator with fixed 5V output. It operates at 150kHz fixed frequency, requires only 4 external components, and is available in a 5-pin TO-220 through-hole package. Key Specifications Topology Step-Down (Buck) Input Voltage 4.5V to 40V Output Voltage 5V […]<\/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-3733","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"5V\/3A step-down SIMPLE SWITCHER, 4.5-40V in, 150kHz, 4 external parts, TO-220-5","date_code":"","package_case":"TO-220-5 (NDH, 10.16 x 7.87 x 4.70 mm)","in_stock":6160,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm2596.pdf","price":"$2.28 @ 1ku","product_introduction":"The LM2596T-5.0 from Texas Instruments is a member of the SIMPLE SWITCHER family, providing all active functions for a step-down (buck) switching regulator in a single monolithic IC. Capable of driving a 3A load with excellent line and load regulation, it features a fixed 5V output with +\/-4% tolerance over specified input voltage and load conditions. The device operates at a fixed 150kHz switching frequency, allowing the use of smaller filter components compared to lower-frequency regulators. Requiring only four external components (input capacitor, output capacitor, catch diode, and inductor), it dramatically simplifies switch-mode power supply design. The TTL-compatible shutdown pin reduces quiescent current to 80uA typical for standby operation. Self-protection features include a two-stage current limit with frequency foldback and thermal shutdown. The LM2596T-5.0 is available in a 5-pin TO-220 through-hole package rated for -40 to 125 C junction temperature.","working_principle":"The LM2596T-5.0 operates as a fixed-frequency buck (step-down) switching regulator. Key subsystems include: (1) Internal Oscillator - a 150kHz fixed-frequency oscillator sets the switching frequency; this allows smaller inductor and capacitor values compared to lower-frequency designs; (2) Current-Mode PWM Controller - the output switch is driven by a pulse-width modulator that compares the error amplifier output with the switch current; this provides inherent current limiting and simplified loop compensation; (3) Power Switch - an integrated Darlington NPN power switch with a maximum saturation voltage of 1.5V at 3A; (4) Error Amplifier - compares the feedback voltage with the internal 5V reference and drives the PWM modulator; internal frequency compensation eliminates the need for external compensation components; (5) Shutdown Control - the ON\/OFF pin accepts TTL-level signals; when driven high (>1.4V), the device enters a low-power standby mode with 80uA quiescent current; (6) Protection - a two-stage current limit: first stage limits switch current to approximately 4.8A; if the overload persists, a second stage reduces the switching frequency from 150kHz to 50kHz to protect the catch diode and inductor; thermal shutdown disables the device at approximately 155C junction temperature.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Power<\/td>Input voltage supply (4.5V to 40V)<\/td><\/tr>
      2<\/td>OUTPUT<\/td>Power<\/td>Switch output (connect to inductor and catch diode)<\/td><\/tr>
      3<\/td>GND<\/td>Ground<\/td>Ground connection<\/td><\/tr>
      4<\/td>Feedback<\/td>Input<\/td>Output voltage feedback (connect to output for fixed 5V)<\/td><\/tr>
      5<\/td>ON\/OFF<\/td>Input<\/td>Shutdown control (ground to enable, >1.4V to disable)<\/td><\/tr><\/table>","application_scenarios":"
      • 5V logic power: 12V or 24V industrial supply to 5V for microcontrollers and digital ICs<\/li>
      • Battery-powered equipment: 9V or 12V battery to regulated 5V with high efficiency<\/li>
      • Set-top boxes: main 5V rail generation from 12V or 24V input<\/li>
      • Automotive: 12V battery to 5V for head units and accessories<\/li>
      • Industrial sensors: 24V industrial supply to 5V sensor power<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LM2596S-5.0\/NOPB<\/td>TO-263-5<\/td>Surface-mount version<\/td><\/tr>
        TI<\/td>LM2596T-3.3\/NOPB<\/td>TO-220-5<\/td>3.3V fixed output version<\/td><\/tr>
        TI<\/td>LM2596T-12\/NOPB<\/td>TO-220-5<\/td>12V fixed output version<\/td><\/tr>
        TI<\/td>LM2596T-ADJ\/NOPB<\/td>TO-220-5<\/td>Adjustable output (1.2-37V)<\/td><\/tr>
        Monolithic Power<\/td>MP1584EN-LF-Z<\/td>SOIC-8<\/td>4.5-28V, 3A, 1.5MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3733","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=3733"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3733\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3733"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}