\n| \u5305\u88c5<\/td>\n | DFN-10 (3x3mm)<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\n- See datasheet for complete specifications<\/li>\n
- Industry-standard package<\/li>\n<\/ul>\n
\u5e94\u7528<\/h2>\n\n- Industrial control<\/li>\n
- Consumer electronics<\/li>\n
- Communication equipment<\/li>\n
- Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"
Product Overview The NCP3232NMNTXG from onsemi is a 3A step-down converter with 4.5-18V input, 1MHz switching, and 95% efficiency in DFN-10 for point-of-load power supplies. Key Specifications Package DFN-10 (3x3mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/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":[31,13],"tags":[],"chip_brand":[144],"class_list":["post-5878","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-on"],"acf":{"brief_explanation":"3A buck converter, 4.5-18V, 1MHz, DFN-10","date_code":"","package_case":"DFN-10 (3x3mm)","in_stock":5277,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NCP3232-D.PDF","price":"$1.00 @ 1ku","product_introduction":"The NCP3232NMNTXG from onsemi is a 3A step-down converter with 4.5-18V input, 1MHz switching, and 95% efficiency in DFN-10 for point-of-load power supplies.","working_principle":"The NCP3232NMNTXG is a 3A synchronous buck converter from onsemi in DFN-10 (3x3mm), operating from 4.5V to 18V input with 1MHz switching frequency. It integrates both high-side and low-side N-channel MOSFETs (synchronous rectification), eliminating the need for an external Schottky diode and improving efficiency by 3-5% compared to asynchronous designs. The 0.6V feedback reference (lower than typical 0.8V) reduces divider current and supports output voltages as low as 0.6V. The COMP pin allows external Type-II compensation for optimal transient response with various output capacitor types. The SS\/TRK pin supports both soft-start (ramp output voltage over time) and voltage tracking (follow another supply rail during start-up). The PGOOD output indicates when the output is within +\/-7% of target, useful for sequencing multiple supply rails. The EN pin (active HIGH, internal 1M-ohm pull-up) allows start-up when floating. The BOOT pin requires a 0.1uF bootstrap capacitor to SW, providing the gate drive voltage above VIN for the high-side MOSFET. The DFN-10 package with exposed pad achieves 38C\/W thermal resistance, critical for dissipating the 1W total loss at 3A load. Peak efficiency exceeds 93% at 5V input, 3.3V output, 1A load.","pin_description":" | Pin<\/th> | Name<\/th> | Type<\/th> | Function<\/th><\/tr> |
|---|
| 1<\/td> | BOOT<\/td> | Power<\/td> | Bootstrap cap (0.1uF to SW for high-side gate drive)<\/td><\/tr> | | 2<\/td> | VIN<\/td> | Power<\/td> | Input supply (4.5-18V)<\/td><\/tr> | | 3<\/td> | SW<\/td> | Output<\/td> | Switching node (internal MOSFET drain)<\/td><\/tr> | | 4<\/td> | GND<\/td> | Power<\/td> | Ground (exposed pad)<\/td><\/tr> | | 5<\/td> | FB<\/td> | Input<\/td> | Feedback (0.6V reference, adjustable output)<\/td><\/tr> | | 6<\/td> | COMP<\/td> | Analog<\/td> | Error amplifier output (external compensation)<\/td><\/tr> | | 7<\/td> | SS\/TRK<\/td> | Analog<\/td> | Soft-start \/ Tracking (external capacitor)<\/td><\/tr> | | 8<\/td> | EN<\/td> | Input<\/td> | Enable (active high, internal pull-up)<\/td><\/tr> | | 9<\/td> | PGOOD<\/td> | Output<\/td> | Power-good (open-drain, active high)<\/td><\/tr> | | 10<\/td> | AGND<\/td> | Power<\/td> | Analog ground<\/td><\/tr><\/table>","application_scenarios":"- Industrial control<\/li>
- Consumer electronics<\/li>
- Communication equipment<\/li>
- Power management<\/li>","alternative_models":"
| Manufacturer<\/th> | Part Number<\/th> | Package<\/th> | Notes<\/th><\/tr> |
|---|
| onsemi<\/td> | NCP3232CMNTXG<\/td> | DFN-10<\/td> | Same device, commercial temp range<\/td><\/tr> | | Texas Instruments<\/td> | TPS54331DDCR<\/td> | SOT-23-6<\/td> | 3A buck, 3.5-28V, similar spec<\/td><\/tr> | | Analog Devices<\/td> | ADP2301AUJZ-R7<\/td> | TSOT-26<\/td> | 3A buck, 3-20V, 650kHz<\/td><\/tr> | | Monolithic Power<\/td> | MP2307DN-LF-Z<\/td> | SOIC-8<\/td> | 3A buck, 4.75-23V, 500kHz<\/td><\/tr> | | Richtek<\/td> | RT7275BGSP<\/td> | SOP-8<\/td> | 3A buck, 4.5-36V, higher voltage<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5878"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5878\/revisions"}],"predecessor-version":[{"id":6030,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5878\/revisions\/6030"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5878"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |
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