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TPS65261 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS65261 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 36 page 6 TPS65266-1 SLVSDA6 – OCTOBER 2016 www.ti.com Product Folder Links: TPS65266-1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated (1) Lab validation result (2) Typical value without bonding wires; from design simulation 6.5 Electrical Characteristics TJ = –30°C to 125°C, VIN= 5 V, typical values are at TJ = 25°C, (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VOLTAGE VIN Input voltage range 2.7 6 V UVLO VIN undervoltage lockout VIN rising 2.35 2.45 2.6 V VIN falling 2.15 2.25 2.37 V IDD(SDN) Shutdown supply current EN1 = EN2 = EN3 = 0 V 9 µA IDD(Q_NSW) Input quiescent current without buck1/2/3 switching EN1 = EN2 = EN3 = 5 V, FB1 = FB2 = FB3 = 0.8 V 790 µA IDD(Q_NSW1) EN1 = 5 V, EN2 = EN3 = 0 V, FB1 = 0.8 V 340 µA IDD(Q_NSW2) EN2 = 5 V, EN1 = EN3 = 0 V, FB2 = 0.8 V 340 µA IDD(Q_NSW3) EN3 = 5 V, EN1 = EN2 = 0 V, FB3 = 0.8 V 340 µA BUCK1, BUCK2, BUCK3 VFB Feedback voltage VCOMP = 1.2 V 0.594 0.6 0.606 V VEN(XH) EN1/2/3 high-level input voltage 1.2 1.26 V VEN(XL) EN1/2/3 low-level input voltage 1.1 1.15 V IEN(X1) EN1/2/3 pullup current ENx = 1 V 1.7 2.1 2.5 µA IEN(X2) EN1/2/3 pullup current ENx = 1.3 V 5.3 µA IEN(hys) Hysteresis current 3.2 µA ISSX Soft-start charging current 4.5 5.5 6.5 µA G(m_PS1/2/3) COMP1/2/3 voltage to inductor current Gm (1) ILX = 0.5 A 10 A/V I(LIMIT1) Buck1 peak inductor current limit 3.55 4.6 5.6 A I(LIMITSINK1) Buck1 low-side sink current limit 1.4 I(LIMIT2/3) Buck2/3 peak inductor current limit 2.35 3.1 3.7 A I(LIMITSINK2/3) Buck2/3 low-side sink current limit 1.2 A Rds(on)_HS1 Buck1 high-side switch resistance(2) VINQ = 5 V 45 m Ω Rds(on)_LS1 Buck1 low-side switch resistance(2) VINQ = 5 V 50 m Ω Rds(on)_HS2 Buck2 high-side switch resistance(2) VINQ = 5 V 60 m Ω Rds(on)_LS2 Buck2 low-side switch resistance(2) VINQ = 5 V 60 m Ω Rds(on)_HS3 Buck3 high-side switch resistance(2) VINQ = 5 V 60 m Ω Rds(on)_LS3 Buck3 low-side switch resistance(2) VINQ = 5 V 60 m Ω POWER GOOD V(th_PG) Feedback voltage threshold FBx undervoltage falling 92.5 %VREF FBx undervoltage rising 95 %VREF IPG PGOOD pin leakage 1 µA V(LOW_PG) PGOOD pin low voltage I(SINK) = 1 mA 0.4 V |
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