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TPS61170-Q1 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS61170-Q1 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 30 page  TPS61170-Q1 SLVSAX2A – SEPTEMBER 2011 – REVISED JULY 2015 www.ti.com 7.3 Recommended Operating Conditions MIN NOM MAX UNIT VI Input voltage range, VIN 3 18 V VO Output voltage range VIN 38 V L Inductor(1) 10 22 μH CI Input capacitor 1 μF CO Output capacitor(1) 1 10 μF TA Operating ambient temperature –40 125 °C TJ Operating junction temperature –40 125 °C (1) These values are recommended values that have been successfully tested in several applications. Other values may be acceptable in other applications but should be fully tested by the user. 7.4 Thermal Information TPS61170-Q1 THERMAL METRIC(1) DRV (SON) UNIT 6 PINS RθJA Junction-to-ambient thermal resistance 96.1 °C/W RθJC(top) Junction-to-case (top) thermal resistance 89 °C/W RθJB Junction-to-board thermal resistance 65.9 °C/W ψJT Junction-to-top characterization parameter 3.2 °C/W ψJB Junction-to-board characterization parameter 66.3 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 40.8 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 7.5 Electrical Characteristics VIN = 3.6 V, CTRL = VIN, TA = –40°C to 125°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VI Input voltage range, VIN 3.0 18 V IQ Operating quiescent current into VIN Device PWM switching no load 2.3 mA ISD Shutdown current CRTL = GND, VIN = 4.2 V 1 μA UVLO Undervoltage lockout threshold VIN falling 2.2 2.5 V Vhys Undervoltage lockout Hysteresis 70 mV ENABLE AND REFERENCE CONTROL V(CTRLh) CTRL logic high voltage VIN = 3 V to 18 V 1.2 V V(CTRL) CTRL logic low voltage VIN = 3 V to 18 V 0.4 V R(CTRL) CTRL pulldown resistor 400 800 1600 k Ω VOLTAGE AND CURRENT CONTROL VREF Voltage feedback regulation voltage 1.204 1.229 1.254 V Voltage feedback regulation voltage under V(REF_PWM) VFB = 492 mV 477 492 507 mV reprogram IFB Voltage feedback input bias current VFB = 1.229 V 200 nA Dmax Maximum duty cycle VFB = 100 mV 90% 93% Isink Comp pin sink current 100 μA Isource Comp pin source current 100 μA Gea Error amplifier transconductance 240 320 400 μmho Rea Error amplifier output resistance 5 pF connected to COMP 6 M Ω 4 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS61170-Q1 |
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