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TPS43340QPHPQ1 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS43340QPHPQ1 Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 38 page  TPS43340-Q1 www.ti.com SLVSB16B – NOVEMBER 2011 – REVISED APRIL 2012 ELECTRICAL CHARACTERISTICS (continued) VIN = VLR1 = 8 V to 18 V, VSUP = 4 V to 10 V, VIN2SENSE = 4V to 40V, TJ = -40°C to 150°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT External Clock and Enable Inputs: SYNC. EN1, EN2, EN3, EN4 VIH Higher threshold VIN = 13 V 1.7 V VIL Lower threshold VIN = 13 V 0.7 V RIH Pull-down resistance VSYNC = 5 V, SYNC pull-down resistance 500 k Ω IiL_ENx Pull-up current VENx = 0V ENx pull up current source 0.5 2 µA Linear Regulator LREG1 VLREG1 Regulated output range IL = 10 µA to 300 mA 0.8 5.25 V VRef Internal reference voltage tolerance Referred to 0.8 V VREF, measured at VSENSE4 -2.5 2.5 % ∆VOUT, Vout = 5 V 15 VIN = VLR1: 6 V to Vline-reg Line reg ∆VOUT, Vout = 3.3 V 15 mV 28 V, IOUT 4 = 10 mA, ∆VOUT, Vout = 1.5 V 15 ∆VOUT, Vout = 5 V 10 IOUT4 = 10 mA to Vload-reg Load reg ∆VOUT, Vout = 3.3 V 10 mV 300 mA, VIN = 14 V ∆VOUT, Vout = 1.5 V 10 VIN = VLR1 = 4 V: Iout = 250 mA 500 VDropout Drop out voltage mV VIN = 9 V, VLR1 = 4 V: Iout = 150 mA 300 IOUT4 Output current VOUT in regulation 0.01 300 mA ILREG1-CL Output current limit VOUT = 0 V 400 1000 mA dVLREG1/dt Output soft start slew rate Response of regulator on enable IOUT = 0 to Iout (max) 5 V/ms Freq = 100 Hz 60 Vripple = 0.5 VPP, IOUT PSRR Power supply ripple rejection dB = 300 mA Freq = 150 kHz 25 COUT4 Output capacitor range Ceramic capacitor, COUT_ESR = 10 m Ω to 1 Ω 1 47 µF Charge pump turn-off voltage VIN rising 9.4 V VTH-CP ONp Hysteresis 0.18 V IOUT4 falling 2 ITH-CP-OFF Low load current detection threshold mA Hysteresis 4 Soft Start SSx ISSx Soft start source current SSx = 0 V 0.75 1 1.25 µA Reset RSTx RSTpullup RST1, RST2, RST4 Pullup Internal pullup to S2 respectively S4, LREG1 50 k Ω RSTxth1 Reset threshold VSENSEx falling -5 -7 -9.5 %VREF RSTxhys Hysteresis 2 %VREF IRSTx = 5 mA 450 mV RSTxdrop Voltage drop IRSTx = 1 mA 100 mV RSTxleak Leakage VS2 = VS4 = VRSTx = 13 V / 8V for RST4 1 µA tdeglitch Deglitch time Power good deglitch 2 16 µs tdelay Reset release delay External capacitor = 1 nF 1 ms tdelay_fix Fixed reset delay No external capacitor, Rdelay pin open 20 50 µs Ioh Charge current source Current to charge external capacitor 30 40 50 µA Iil Discharge current sink Current to discharge external capacitor 30 40 50 µA Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TPS43340-Q1 |
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