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TPS54226RGTT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54226RGTT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 32 page TPS54226 www.ti.com SLVSA14E – OCTOBER 2009 – REVISED JULY 2011 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply input voltage range 4.5 18 V VIN Power input voltage range 2 18 V VBST –0.1 24 VBST (vs SW1, SW2) –0.1 5.7 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 18 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 –40 125 °C ELECTRICAL CHARACTERISTICS over operating free-air temperature range, VCC,VIN = 12V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VCC current, TA = 25°C, EN = 5 V, IVCC Operating - non-switching supply current 800 1200 μA VFB = 0.8 V IVCCSDN Shutdown supply current VCC current, TA = 25°C, EN = 0 V 1.8 10 μA LOGIC THRESHOLD VENH EN high-level input voltage EN 1.5 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 μA RDischg VO discharge resistance EN = 0 V, VO = 0.5 V, TA = 25°C 50 100 Ω VREG5 OUTPUT TA = 25°C, 6 V < VCC < 18 V, VVREG5 VREG5 output voltage 5.3 5.5 5.7 V 0 < IVREG5 < 5 mA VLN5 Line regulation 6.0 V < VCC < 18 V, IVREG5 = 5 mA 20 mV VLD5 Load regulation 0 mA < IVREG5 < 5 mA 100 mV IVREG5 Output current VCC = 6 V, VREG5 = 4 V, TA = 25°C 70 mA MOSFET Rdsonh High side switch resistance 25 °C, VBST - SW1,2 = 5.5 V 160 m Ω Rdsonl Low side switch resistance 25 °C 110 m Ω CURRENT LIMIT Iocl Current limit L out = 2.2 μH(1) 2.5 3.1 4.5 A (1) Not production tested. Copyright © 2009–2011, Texas Instruments Incorporated 3 Product Folder Link(s): TPS54226 |
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