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TPS65320QPWPRQ1 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS65320QPWPRQ1 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 34 page  TPS65320-Q1 www.ti.com SLVSAY9A – DECEMBER 2012 – REVISED APRIL 2013 ELECTRICAL CHARACTERISTICS (continued) VIN = 6 V to 27 V, EN1 = EN2 = VIN, TJ = –40°C to 150°C, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK PIN) Switching-frequency range using 100 2500 kHz RT mode fSW Switching frequency RT = 200 k Ω 450 581 720 kHz Switching-frequency range using 300 2200 kHz CLK mode Minimum CLK input pulse width 40 ns High threshold 1.9 2.2 V Low threshold 0.5 0.7 V RT/CLK Falling edge to SW rising edge Measured at 500 kHz with RT resistor in series 60 ns delay PLL Lock-in time Measured at 500 kHz 100 μs LDO ΔVLINE-REG Line regulation VIN = 6 V to 30 V, IOUT = 10 mA, VOUT = 3.3 V 20 mV ΔVLOAD-REG Load regulation IOUT = 10 mA to 200 mA, VIN = 14 V, VOUT = 3.3 V 35 mV VDROPOUT Dropout voltage IOUT = 200 mA 300 450 mV (VIN – VOUT) IOUT Output current VOUT in regulation 0 280 mA Error-amplifier dc gain 800 V/V Operating input voltage on Buck regulator is in regulation and supplying at least VIN_LDO 4 20 V VIN_LDO pin LDO output voltage plus dropout voltage VDROPOUT. VFB2 Voltage reference VLDO_OUT = 1 V to 5 V 0.788 0.8 0.812 V ICL Output current limit VOUT = 0 V (VOUT pin is shorted to ground.) 280 1000 mA Iq_LPM_ Quiescent current EN1 = 0 V, EN2 = 5 V, IOUT = 0.01 mA to 0.75 mA 28 40 μA VIN-RIPPLE = 0.5 VPP, IOUT = 200 mA, frequency = 100 60 Hz, VOUT = 5 V and VOUT = 3.3 V PSRR Power supply ripple rejection dB VIN-RIPPLE = 0.5 VPP, IOUT = 200 mA, frequency = 150 30 kHz, VOUT = 5 V and VOUT = 3.3 V ESR = 0.001 Ω to 100 mΩ, large output capacitance Output capacitor 1 40 μF may be required for load transient RESET (nRST PIN) RESET threshold LDO_OUT decreasing 88% 92% 95% –5% × VOH Output high V Vldo_out VOL Output low Reset asserted due to falling LDO_OUT, IOL = 1 mA 0 0.045 0.4 V Filter time Delay before asserting nRST low 6 10 15 μs SS (INTERNAL SOFT START TIMER FOR SWITCH MODE CONVERTER) ISS Soft-start source current SS = 0 V 2 4 μA TSHUTDOWN Thermal-shutdown trip point 170 ºC Thys Hysteresis 10 ºC Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS65320-Q1 |
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