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TPS61175PWPR Datasheet(PDF) 3 Page - Texas Instruments |
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TPS61175PWPR Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 24 page  TPS61175 www.ti.com SLVS892A – DECEMBER 2008 – REVISED OCTOBER 2010 ELECTRICAL CHARACTERISTICS FSW = 1.2 MHz (Rfreq=80 k Ω), Vin=3.6V, TA = –40°C to +85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN Input voltage range 2.9 18 V IQ Operating quiescent current into Vin Device PWM switching without load 3.5 mA ISD Shutdown current EN=GND 1.5 mA VUVLO Under-voltage lockout threshold 2.5 2.7 V Vhys Under-voltage lockout hysteresis 130 mV ENABLE AND REFERENCE CONTROL Venh EN logic high voltage Vin = 2.9 V to 18 V 1.2 V Venl EN logic low voltage Vin = 2.9 V to 18 V 0.4 V VSYNh SYN logic high voltage 1.2 VSYNl SYN logic low voltage 0.4 V Ren EN pull down resistor 400 800 1600 k Ω Toff Shutdown delay, SS discharge EN high to low 10 ms VOLTAGE AND CURRENT CONTROL VREF Voltage feedback regulation voltage 1.204 1.229 1.254 V IFB Voltage feedback input bias current 200 nA Isink Comp pin sink current VFB = VREF + 200 mV, VCOMP = 1 V 50 mA Isource Comp pin source current VFB = VREF –200 mV, VCOMP = 1 V 130 mA VCCLP Comp pin Clamp Voltage High Clamp, VFB = 1 V 3 V Low Clamp, VFB = 1.5 V 0.75 VCTH Comp pin threshold Duty cycle = 0% 0.95 V Gea Error amplifier transconductance 240 340 440 mmho Rea Error amplifier output resistance 10 M Ω fea Error amplifier crossover frequency 500 KHz FREQUENCY Rfreq = 480 k Ω 0.16 0.21 0.26 fS Oscillator frequency Rfreq = 80 k Ω 1.0 1.2 1.4 MHz Rfreq = 40 k Ω 1.76 2.2 2.64 Dmax Maximum duty cycle VFB = 1.0 V, Rfreq = 80 kΩ 89% 93% VFREQ FREQ pin voltage 1.229 V Tmin_on Minimum on pulse width Rfreq = 80 k Ω 60 ns POWER SWITCH RDS(ON) N-channel MOSFET on-resistance VIN = VGS = 3.6 V 0.13 0.25 Ω VIN = VGS = 3.0 V 0.13 0.3 ILN_NFET N-channel leakage current VDS = 40 V, TA = 25°C 1 mA OC, OVP AND SS ILIM N-Channel MOSFET current limit D = Dmax 3 3.8 5 A ISS Soft start bias current Vss = 0 V 6 mA THERMAL SHUTDOWN Tshutdown Thermal shutdown threshold 160 °C T hysteresis Thermal shutdown threshold hysteresis 15 °C Copyright © 2008–2010, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS61175 |
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