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UCC3941-5 Datasheet(PDF) 6 Page - Texas Instruments |
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UCC3941-5 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 20 page UCC2941-3, UCC2941-5, UCC2941-ADJ, UCC3941-3, UCC3941-5, UCC3941-ADJ 1V SYNCHRONOUS BOOST CONVERTER SLUS242B – JANUARY 1999 – REVISED JUNE 2001 6 www.ti.com electrical characteristics over recommended operating junction temperature range, for UCC3941, TA = 0_C to 70_C, for UCC2941, TA = –40_C to 85_C, VIN = 1.25 V, TA = TJ (unless otherwise noted) (continued) inductor charging (L = 22 µH) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Peak discontinuous current Over operating range 0.05 0.85 A Peak continuous current RPLIM = 6.2 Ω, See Note 1 0.5 0.9 1.3 A Charge switch RDS(on) N and D package, I = 200 mA 0.25 0.40 Ω Current limit delay See Note 1 50 ns synchronous rectifier PARAMETER TEST CONDITIONS MIN TYP MAX UNIT UCC3941N–ADJ UCC3941D–ADJ I = 200 mA, VOUT = 3.3 V 0.35 0.6 Ω Rectifier RDS(on) UCC3941N–3 UCC3941D–3 I = 200 mA 0.35 0.6 Ω UCC3941N–5 UCC3941D–5 I = 200 mA 0.5 0.8 Ω shutdown PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Shutdown bias current SD = 0 V –10 –7 µA NOTE 1: Performance from application circuit shown in Figures 3, 4, and 5. Ensured by design. Not 100% production tested. NOTE 2: For the UCC3941–3, VOUT = 3.47 V and VGD = 9.3 V. For the UCC3941–5, VOUT = 5.25 V, VGD = 9.3 V. For the UCC3941–ADJ, FB = 1.315 V, VGD = 9.3 V. |
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