The TPS62175DQCR is a Texas Instruments 28 V, 500 mA synchronous step-down converter with DCS-Control topology and sleep mode. It features 4.8 uA sleep mode quiescent current, 1 MHz fixed switching frequency, 100% duty cycle mode, power-good output, and active output discharge. Packaged in 10-pin WSON (2×3 mm), -40C to +85C.<\/p>\n
| \u8f93\u5165\u7535\u538b<\/td>\n | 4.75 V to 28 V<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||
| \u8f93\u51fa\u7535\u6d41<\/td>\n | 500 mA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||
| Output Voltage<\/td>\n | 1 V to 6 V (adjustable)<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||
| IQ (sleep)<\/td>\n | 4.8 uA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||
| IQ (normal)<\/td>\n | 22 uA<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||
| Switching Freq<\/td>\n | 1 MHz<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\u5e94\u7528<\/h2>\nProduct Overview The TPS62175DQCR is a Texas Instruments 28 V, 500 mA synchronous step-down converter with DCS-Control topology and sleep mode. It features 4.8 uA sleep mode quiescent current, 1 MHz fixed switching frequency, 100% duty cycle mode, power-good output, and active output discharge. Packaged in 10-pin WSON (2×3 mm), -40C to +85C. Key Specifications […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-8746","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"28V 500mA sync buck, DCS-Control, 4.8uA IQ sleep, 1MHz, WSON-10","date_code":"","package_case":"10-Pin WSON (2.0 x 3.0 x 0.7 mm with exposed pad)","in_stock":4280,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps62175.pdf","price":"$0.594 @ 1ku","product_introduction":"The TPS62175DQCR is a Texas Instruments high-efficiency synchronous step-down DC\/DC converter based on DCS-Control topology. It supports 4.75 V to 28 V input and up to 500 mA output current with adjustable output from 1 V to 6 V. The sleep mode reduces quiescent current from 22 uA (normal) to 4.8 uA, increasing efficiency by up to 20% at very light loads. The 1 MHz fixed switching frequency allows small inductor and capacitor sizes. DCS-Control provides fast transient response with seamless transition between PWM and power-save modes. The 100% duty cycle mode maintains regulation when input approaches output voltage. Power-good output enables power sequencing, and active output discharge ensures clean shutdown. The 2x3 mm 10-pin WSON package minimizes board space.","working_principle":"The TPS62175 uses DCS-Control (Direct Control with Seamless transition), a proprietary TI topology combining constant on-time PWM control with a comparator-based output regulation loop. In PWM mode, the high-side MOSFET turns on for a fixed on-time (adjusted by VIN), then the synchronous low-side MOSFET turns on until the inductor current reaches zero (power save) or the next cycle begins. At light loads, the device enters pulse-frequency modulation (PFM) power-save mode, skipping switching cycles to reduce switching losses. In sleep mode (SLEEP pin low), IQ drops to 4.8 uA by disabling non-essential circuits while maintaining output regulation with reduced dynamic performance. DCS-Control achieves fast transient response because the comparator directly controls the switching without an error amplifier bandwidth limitation.","pin_description":"
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