{"id":10719,"date":"2026-07-20T10:42:07","date_gmt":"2026-07-20T10:42:07","guid":{"rendered":"https:\/\/ic-vendor.com\/lp2983aim5x-1-0-nopb\/"},"modified":"2026-07-20T10:42:07","modified_gmt":"2026-07-20T10:42:07","slug":"lp2983aim5x-1-0-nopb","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/lp2983aim5x-1-0-nopb\/","title":{"rendered":"LP2983AIM5X-1.0\/NOPB"},"content":{"rendered":"

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

The LP2983AIM5X-1.0\/NOPB is a 150 mA LDO voltage regulator from Texas Instruments with a fixed 1.0 V output. Packaged in a 5-pin SOT-23-5 (SC-74A), it operates from up to 16 V input and features low quiescent current (95 \u00b5A), high PSRR (65 dB at 1 kHz), and an enable pin. The A-grade version offers tighter output voltage tolerance, making it suitable for precision low-voltage rails.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n1.0 V (Fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n150 mA<\/td>\n<\/tr>\n
Input Voltage (Max)<\/td>\n16 V<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n95 \u00b5A typical<\/td>\n<\/tr>\n
PSRR<\/td>\n65 dB at 1 kHz<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n5-SOT-23 (SC-74A)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Accuracy<\/td>\nA-Grade (tighter tolerance)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Fixed 1.0 V output for low-voltage core rails<\/li>\n
  • A-grade accuracy for precision applications<\/li>\n
  • 65 dB PSRR at 1 kHz for noise-sensitive loads<\/li>\n
  • 95 \u00b5A typical quiescent current<\/li>\n
  • Enable pin for on\/off control and power sequencing<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Low-voltage DSP and microcontroller core supplies<\/li>\n
    • Post-regulation for switching power supplies<\/li>\n
    • Battery-powered portable devices<\/li>\n
    • Memory termination voltage regulation<\/li>\n
    • Clock and PLL power supply filtering<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LP2983AIM5X-1.0\/NOPB is a 150 mA LDO voltage regulator from Texas Instruments with a fixed 1.0 V output. Packaged in a 5-pin SOT-23-5 (SC-74A), it operates from up to 16 V input and features low quiescent current (95 \u00b5A), high PSRR (65 dB at 1 kHz), and an enable pin. The A-grade version […]<\/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":[13,32],"tags":[2059],"chip_brand":[138],"class_list":["post-10719","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-lp2983aim5x-1-0-nopb","chip_brand-ti"],"acf":{"brief_explanation":"150 mA LDO, 1.0 V fixed, 16 V max input, 65 dB PSRR, A-grade, 5-SOT-23","date_code":"","package_case":"5-SOT-23-5 (SC-74A)","in_stock":5278,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lp2983.pdf","price":"$0.36 @ 1ku","product_introduction":"The LP2983 is a 150 mA low-dropout regulator from Texas Instruments designed for portable and battery-powered applications. The A-grade version offers tighter output voltage accuracy for precision low-voltage rails. The device features very low quiescent current (95 \u00b5A typical) and high PSRR (65 dB at 1 kHz), making it suitable for noise-sensitive loads. The enable pin allows the regulator to be switched off, reducing supply current to near zero. The small SOT-23-5 package minimizes board space in compact designs.","working_principle":"The LP2983 uses a PMOS pass transistor in a feedback-regulated LDO topology. The output voltage is compared against an internal precision bandgap reference by the error amplifier, which drives the PMOS gate to maintain regulation. The high PSRR is achieved through the high loop gain of the error amplifier and the PMOS pass device characteristics. The enable pin controls the regulator output: when EN is low, the pass transistor is turned off and the output is discharged. Over-current and over-temperature protection circuits ensure safe operation under fault conditions.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Input<\/td>Input supply voltage (up to 16 V)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground reference<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable control (high = on)<\/td><\/tr>
      4<\/td>NC<\/td>\u2014<\/td>No connect<\/td><\/tr>
      5<\/td>VOUT<\/td>Output<\/td>Regulated 1.0 V output<\/td><\/tr><\/table>","application_scenarios":"
      • 1.0 V core rail for low-voltage microcontrollers and DSPs<\/li>
      • Post-regulation of switching supply output for noise reduction<\/li>
      • PLL and clock generator clean power supply<\/li>
      • Memory VTT termination voltage<\/li>
      • Portable medical device low-voltage regulation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LP2983IM5X-1.0\/NOPB<\/td>5-SOT-23<\/td>Standard grade, same function<\/td><\/tr>
        TI<\/td>TLV70010DDCR<\/td>5-SOT-23<\/td>200 mA, 1.0 V, lower Iq<\/td><\/tr>
        Microchip<\/td>MCP1824T-1002E\/TT<\/td>5-SOT-23<\/td>300 mA, 1.0 V<\/td><\/tr>
        onsemi<\/td>NCP511SN10T1G<\/td>5-TSOP-5<\/td>80 mA, 1.0 V LDO<\/td><\/tr>
        Diodes Inc<\/td>AP7311-10WG-7<\/td>5-SOT-25<\/td>150 mA, 1.0 V LDO<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=10719"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10719\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10719"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}