{"id":10481,"date":"2026-07-20T04:20:06","date_gmt":"2026-07-20T04:20:06","guid":{"rendered":"https:\/\/ic-vendor.com\/ncp500sn25t1g\/"},"modified":"2026-07-20T04:20:06","modified_gmt":"2026-07-20T04:20:06","slug":"ncp500sn25t1g","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/ncp500sn25t1g\/","title":{"rendered":"NCP500SN25T1G"},"content":{"rendered":"

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

The onsemi NCP500SN25T1G is a low-dropout (LDO) linear voltage regulator providing a fixed 2.5 V output at up to 150 mA. Housed in a TSOP-5 (SOT-23-5) package, it features ultra-low dropout voltage of 190 mV at 150 mA, low noise operation without requiring an external bypass capacitor, and an enable pin for power management control. The device operates from a 1.8 V to 6.0 V input supply.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n2.5 V (Fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n150 mA<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n1.8 V to 6.0 V<\/td>\n<\/tr>\n
Dropout Voltage (Typ)<\/td>\n190 mV @ 150 mA<\/td>\n<\/tr>\n
Output Accuracy<\/td>\n\u00b12.5%<\/td>\n<\/tr>\n
Quiescent Current (Typ)<\/td>\n180 \u00b5A<\/td>\n<\/tr>\n
PSRR<\/td>\n62 dB<\/td>\n<\/tr>\n
Enable Pin<\/td>\nYes<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTSOP-5 (SOT-23-5)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low dropout voltage of 190 mV at full 150 mA load<\/li>\n
  • Low noise operation without external noise bypass capacitor<\/li>\n
  • Fast enable turn-on time of 20 \u00b5s<\/li>\n
  • Wide input voltage range from 1.8 V to 6.0 V<\/li>\n
  • Compatible with low-cost ceramic capacitors (1.0 \u00b5F minimum)<\/li>\n
  • Internal current limit and thermal shutdown protection<\/li>\n
  • Enable pin drivable by 1.0 V logic<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Noise-sensitive circuits such as VCOs and RF stages<\/li>\n
    • SMPS post-regulation<\/li>\n
    • Hand-held instrumentation and portable devices<\/li>\n
    • Camcorders and cameras<\/li>\n
    • Battery-powered applications requiring extended battery life<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi NCP500SN25T1G is a low-dropout (LDO) linear voltage regulator providing a fixed 2.5 V output at up to 150 mA. Housed in a TSOP-5 (SOT-23-5) package, it features ultra-low dropout voltage of 190 mV at 150 mA, low noise operation without requiring an external bypass capacitor, and an enable pin for power […]<\/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":[1786],"chip_brand":[144],"class_list":["post-10481","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-ncp500sn25t1g","chip_brand-on"],"acf":{"brief_explanation":"150mA LDO, 2.5V fixed output, 190mV dropout, low noise, enable pin, TSOP-5","date_code":"","package_case":"TSOP-5 (SOT-23-5) 2.9 x 1.6 x 1.1 mm","in_stock":5128,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NCP500-D.PDF","price":"$0.224 @ 3ku","product_introduction":"The onsemi NCP500SN25T1G is a low-dropout (LDO) linear voltage regulator designed for portable battery-powered applications requiring low noise operation, fast enable response time, and low dropout. The device provides a fixed 2.5 V output at up to 150 mA from an input range of 1.8 V to 6.0 V. It achieves ultra-low noise performance without the need for an external noise bypass capacitor. The internal architecture includes a voltage reference unit, error amplifier, PMOS power transistor, output voltage setting resistors, current limit protection, and temperature limit protection circuits. The NCP500 is designed for use with low-cost ceramic capacitors and requires a minimum output capacitor of 1.0 \u00b5F.","working_principle":"The NCP500SN25T1G uses a PMOS pass transistor as the regulating element. The error amplifier compares a fraction of the output voltage (via internal resistor divider) with a precision internal voltage reference. The amplifier output drives the gate of the PMOS transistor to regulate the output. Because the PMOS device has very low on-resistance, the dropout voltage is only 190 mV at full load. The enable pin allows external logic to turn the regulator on or off with a 20 \u00b5s turn-on time. Internal protection circuits include current limiting and thermal shutdown, which safely disable the regulator under fault conditions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>VIN<\/td>Power<\/td>Input supply voltage (1.8 V to 6.0 V)<\/td><\/tr>\n
      2<\/td>GND<\/td>Power<\/td>Ground reference<\/td><\/tr>\n
      3<\/td>EN<\/td>Input<\/td>Enable input \u2014 logic high enables the regulator<\/td><\/tr>\n
      4<\/td>NC\/Bypass<\/td>NC<\/td>No connect \/ bypass capacitor (not required for low noise)<\/td><\/tr>\n
      5<\/td>VOUT<\/td>Output<\/td>Regulated 2.5 V output<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • RF and VCO power supply noise filtering in wireless communication modules<\/li>\n
      • Post-regulation after switching converters in portable instruments<\/li>\n
      • Battery-powered camcorders and digital cameras<\/li>\n
      • Hand-held medical instrumentation requiring low noise<\/li>\n
      • IoT sensor nodes requiring stable low-noise supply rails<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        onsemi<\/td>NCP500SN30T1G<\/td>TSOP-5<\/td>3.0V output variant<\/td><\/tr>\n
        onsemi<\/td>NCP500SN33T1G<\/td>TSOP-5<\/td>3.3V output variant<\/td><\/tr>\n
        Texas Instruments<\/td>LP2985-2.5<\/td>SOT-23-5<\/td>Similar specs, 150mA LDO<\/td><\/tr>\n
        Microchip<\/td>TC1015-2.5VCT<\/td>SOT-23-5<\/td>50mA, pin-compatible<\/td><\/tr>\n
        onsemi<\/td>NCP512SN25T1G<\/td>TSOP-5<\/td>Lower Iq alternative<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10481","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=10481"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10481\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10481"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}