The TPS7A4101DGNR from TI is a 50V, 50mA ultra-low-noise LDO regulator with 72dB PSRR in MSOP-8 for precision analog and RF power supply applications.<\/p>\n
| \u5305\u88c5<\/td>\n | MSOP-8 (3x3mm)<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\u5e94\u7528<\/h2>\nProduct Overview The TPS7A4101DGNR from TI is a 50V, 50mA ultra-low-noise LDO regulator with 72dB PSRR in MSOP-8 for precision analog and RF power supply applications. Key Specifications Package MSOP-8 (3x3mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-5624","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"50V 50mA LDO, ultra-low noise, MSOP-8","date_code":"","package_case":"MSOP-8 (3x3mm)","in_stock":6374,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps7a4101.pdf","price":"$2.80 @ 1ku","product_introduction":"The TPS7A4101DGNR from TI is a 50V, 50mA ultra-low-noise LDO regulator with 72dB PSRR in MSOP-8 for precision analog and RF power supply applications.","working_principle":"The TPS7A4101DGNR is a 50V 50mA ultra-low-noise LDO from Texas Instruments in MSOP-8 (with exposed pad), providing 4.5uVrms output noise from 10Hz-100kHz. The ultra-low noise is achieved by the NR\/SS (Noise Reduction \/ Soft-Start) pin: connecting a capacitor (0.01uF recommended) to this pin creates a low-pass filter on the internal bandgap reference, reducing reference noise by 10x. The filtered reference feeds the error amplifier, and the LDO's high PSRR (72dB at 1kHz, 40dB at 1MHz) further rejects input noise. The 50V input rating (maximum 50V, operating 4-50V) makes this device unique for high-voltage, noise-sensitive applications like: (1) Post-regulation after a 48V switching converter; (2) Precision analog power for data converters in industrial systems; (3) VCO\/PLL power supplies where noise directly translates to phase noise. The dropout voltage is 200mV at 50mA. The output voltage accuracy is +\/-1% over temperature. The device is stable with any output capacitor >=2.2uF (ceramic). The EN pin provides shutdown (1uA Iq). The SS function (same NR\/SS pin) controls output ramp-up time: larger capacitor = slower start. The -DGNR suffix specifies MSOP-8 with exposed pad, tape-and-reel. Applications include: medical ultrasound power, test equipment analog rails, and RF\/analog power supplies.","pin_description":"
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