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TPS65257 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS65257 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 34 page BUCK1 BUCK2 BUCK3 V3V V7V USB_VIN CLOCK ROSC USB_SWITCH + VPULL PG&RST generator VIN1 RLIM1 EN1 BST1 LX1 LX1 FB1 CMP1 BST2 LX2 LX2 FB2 CMP2 BST3 LX3 LX3 FB3 CMP3 PGOOD USB_EN USB_nFAULT 12V SS1 VIN2 RLIM2 EN2 SS2 VIN3 RLIM3 EN3 SS3 VPULL USB_VO CV3P3 CV7 ROSC CSS1 CSS2 CSS3 RILIM1 RILIM2 RILIM3 CUSB_0 CBST1 CBST2 CBST3 LDC1 LDC2 LDC3 RCMP1 CCMP1 RCMP2 CCMP2 RFB1U RFB1L RFB2U RFB2L RFB3U RFB3L CODC2 CODC3 CODC1 CIDC1 CIDC2 CIDC3 CUSB_IN for sequenced start-up External enable External enable External enable for sequenced start-up for sequenced start-up + Low Power mode Low Power mode Low Power mode CCMP22 CCMP11 USB supply Biasing - + PB_IN Debounce P_OFF 0.8V 0.8V 0.8V 1µA 1µA 1µA INT RCMP3 CCMP3 CCMP33 F_PWM High for forced PWM Low por autoamtic PFM/PWM mode V3V TPS65257 www.ti.com SLVSB32 – SEPTEMBER 2011 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. FUNCTIONAL BLOCK DIAGRAM Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS65257 |
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