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TPS54426PWP Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54426PWP Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 22 page  TPS54426 www.ti.com SLVSAD6 – AUGUST 2010 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VIN Supply input voltage range 4.5 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 –40 85 °C TJ Operating junction temperature –40 150 °C ELECTRICAL CHARACTERISTICS over operating free-air temperature range (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 mA VFB = 0.8 V IVINSDN Shutdown supply current VIN current, TA = 25°C, EN = 0 V 1.8 10 mA LOGIC THRESHOLD VENH EN high-level input voltage EN 2 V VENL EN low-level input voltage EN 0.4 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 = –40°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 mA RDischg VO discharge resistance EN = 0 V, VO = 0.5 V, TA = 25°C 50 100 Ω VREG5 OUTPUT TA = 25°C, 6.0 V < VIN < 18 V, VVREG5 VREG5 output voltage 5.3 5.5 5.7 V 0 < IVREG5 < 5 mA VLN5 Line regulation 6.0 V < VIN < 18 V, IVREG5 = 5 mA 20 mV VLD5 Load regulation 0 mA < IVREG5 < 5 mA 100 mV IVREG5 Output current VIN = 6 V, VREG5 = 4.0 V, TA = 25°C 70 mA MOSFET Rdsonh High side switch resistance 25°C, VBST - SW1,2 = 5.5 V 63 m Ω Rdsonl Low side switch resistance 25°C 55 m Ω CURRENT LIMIT Iocl Current limit L out = 1.5 mH(1), TA = -20 ºC to 85 ºC 4.7 5.4 7.5 A (1) Not production tested. Copyright © 2010, Texas Instruments Incorporated 3 Product Folder Link(s): TPS54426 |
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