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TPS54429ERSAT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54429ERSAT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 26 page  TPS54429E www.ti.com SLVSAS0 –FEBRUARY 2011 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VIN Supply input voltage range 7 18 V VBST – 0.3 24 VBST (10 ns transient) – 0.3 27 SS, PG – 0.1 5.7 EN – 0.1 18 VI Input voltage range V VO, VFB – 0.1 5.5 SW1, SW2 – 1.8 18 SW1, SW2 (10 ns transient) – 3 21 PGND1, PGND2 – 0.1 0.1 VO Output voltage range VREG5 – 0.1 5.7 V IO Output Current range IVREG5 0 10 mA TA Operating free-air temperature – 20 85 ° C TJ Operating junction temperature – 20 150 ° C ELECTRICAL CHARACTERISTICS over operating free-air temperature range, VIN = 12V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN current, TA = 25°C, EN = 5 V, IVIN Operating - non-switching supply current 850 1300 μ A VFB = 0.8 V IVINSDN Shutdown supply current VIN current, TA = 25°C, EN = 0 V 1.8 10 μ A LOGIC THRESHOLD VENH EN high-level input voltage EN 2 V VENL EN low-level input voltage EN 0.48 V VFB VOLTAGE AND DISCHARGE RESISTANCE VFB voltage light load mode, TA = 25°C, 771 VO = 1.05 V, IO = 10mA TA = 25°C, VO = 1.05 V, continuous mode 757 765 773 VFBTH VFB threshold voltage mV TA = 0°C to 85°C, VO = 1.05 V, continuous 753 777 mode(1) TA = –20°C to 85°C, VO = 1.05 V, continuous 751 779 mode(1) IVFB VFB input current VFB = 0.8 V, TA = 25°C 0 ± 0.1 μ A RDischg VO discharge resistance EN = 0 V, VO = 0.5 V, TA = 25°C 50 100 Ω VREG5 OUTPUT TA = 25°C, 7 V < VIN < 18 V, VVREG5 VREG5 output voltage 5.3 5.5 5.7 V 0 < IVREG5 < 5 mA VLN5 Line regulation 7 V < VIN < 18 V, IVREG5 = 5 mA 20 mV VLD5 Load regulation 0 mA < IVREG5 < 5 mA 100 mV IVREG5 Output current VIN = 7 V, VREG5 = 4 V, TA = 25°C 70 mA MOSFET Rdsonh High side switch resistance 25°C, VBST - SW1,2 = 5.5 V 63 mΩ Rdsonl Low side switch resistance 25°C 55 mΩ (1) Not production tested. © 2011, Texas Instruments Incorporated 3 Product Folder Link(s) :TPS54429E |
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