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TPS65263 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS65263 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 44 page  TPS65261, TPS65261-1 SLVSCD3B – DECEMBER 2013 – REVISED MAY 2014 www.ti.com 7.5 Electrical Characteristics TA = 25°C, VIN = 12 V, fSW = 600 kHz (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VOLTAGE VIN Input voltage range 4.5 18 V VIN rising 4 4.25 4.5 V UVLO VIN under-voltage lockout VIN falling 3.5 3.75 4 Hysteresis 500 mV IDDSDN Shutdown supply current EN1=EN2=EN3=MODE=0V 9.2 µA EN1=EN2=EN3=5V, IDDQ_NSW 605 µA FB1=FB2=FB3=0.8V Input quiescent current without IDDQ_NSW1 EN1=5V, EN2=EN3=0V, FB1=0.8V 330 µA buck1/2/3 switching IDDQ_NSW2 EN2=5V, EN1=EN3=0V, FB2=0.8V 330 µA IDDQ_NSW3 EN3=5V, EN1=EN2=0V, FB3=0.8V 330 µA V7V V7V LDO output voltage V7V load current=0A 6 6.3 6.6 V IOCP_V7V V7V LDO current limit 175 mA FEEDBACK VOLTAGE REFERENCE VCOMP = 1.2 V, TJ = 25°C 0.596 0.6 0.605 V VFB Feedback voltage VCOMP = 1.2 V, TJ = -40°C to 125°C 0.594 0.6 0.606 V IOUT1 = 1.5A, IOUT2 = 1A, IOUT3 = 1A VLINEREG_BUCK Line regulation-DC 0.002 %/V 5V < PVINx < 18V VLOADREG_BUCK Load regulation-DC IOUTx = (10–100%) × IOUTx_max 0.02 %/A Buck1, Buck2, Buck3 VENXH EN1/2/3 high level input voltage 1.2 1.26 V VENXL EN1/2/3 low level input voltage 1.1 1.15 V IENX1 EN1/2/3 pull-up current ENx = 1V 3.6 µA IENX2 EN1/2/3 pull-up current ENx = 1.5V 6.6 µA IENhys Hysteresis current 3 µA ISSX Soft start charging current 4.3 5 6 µA TON_MIN Minimum on time 80 100 ns Gm_EA Error amplifier trans-conductance –2 µA < ICOMPX < 2 µA 300 µS COMP1/2/3 voltage to inductor current Gm_PS1/2/3 ILX = 0.5 A 7.4 A/V Gm ILIMIT1 Buck1 peak inductor current limit 4.33 5.1 6.02 A ILIMITSOURCE1 Buck1 low side source current limit 4.3 A ILIMITSINK1 Buck1 low side sink current limit 1.3 A ILIMIT2/3 Buck2/3 peak inductor current limit 2.6 3.1 3.73 A ILIMITSOURCE2/3 Buck2/3 low side source current limit 2.7 A ILIMITSINK2/3 Buck2/3 low side sink current limit 1 A THiccup_wait Over current wait time 256 cycles THiccup_re Hiccup time before re-start 8192 cycles Rdson_HS1 Buck1 High-side switch resistance VIN = 12V 100 m Ω Rdson_LS1 Buck1 low-side switch resistance VIN = 12V 65 m Ω Rdson_HS2 Buck2 High-side switch resistance VIN = 12V 140 m Ω Rdson_LS2 Buck2 low-side switch resistance VIN = 12V 95 m Ω Rdson_HS3 Buck3 High-side switch resistance VIN = 12V 140 m Ω Rdson_LS3 Buck3 low-side switch resistance VIN = 12V 95 m Ω 6 Submit Documentation Feedback Copyright © 2013–2014, Texas Instruments Incorporated |
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