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TPS62092 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS62092 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 29 page  TPS62090, TPS62091, TPS62092, TPS62093 www.ti.com SLVSAW2B – MARCH 2012 – REVISED APRIL 2014 7.5 Electrical Characteristics 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 VIN Input voltage range 2.5 6 V IQIN Quiescent current Not switching, FB = FB +5 %, Into PVIN and AVIN 20 µA Isd Shutdown current Into PVIN and AVIN 0.6 5 µA Undervoltage lockout threshold VIN falling 2.1 2.2 2.3 V UVLO Undervoltage lockout hysteresis 200 mV Thermal shutdown Temperature rising 150 ºC Thermal shutdown hysteresis 20 ºC Control SIGNALS EN, FREQ VH High level input voltage VIN = 2.5 V to 6 V 1 V VL Low level input voltage VIN = 2.5 V to 6 V 0.4 V Ilkg Input leakage current EN, FREQ = GND or VIN 10 100 nA RPD Pull down resistance 400 k Ω Softstart ISS Softstart current 6.3 7.5 8.7 µA POWER GOOD Output voltage rising 95% Vth Power good threshold Output voltage falling 90% VL Low level voltage I(sink) = 1mA 0.4 V IPG PG sinking current 1 mA Ilkg Leakage current VPG = 3.6V 10 100 nA POWER SWITCH High side FET on-resistance ISW = 500 mA 50 m Ω RDS(on) Low side FET on-resistance ISW = 500 mA 40 m Ω High side FET switch current ILIM 3.7 4.6 5.5 A limit FREQ = GND, IOUT = 3 A 2.8 MHz fs Switching frequency FREQ = VIN, IOUT = 3 A 1.4 MHz OUTPUT Vs Output voltage range 0.8 VIN V Rod Output discharge resistor EN = GND, VOUT = 1.8 V 200 Ω VFB Feedback regulation voltage 0.8 V VIN ≥ VOUT + 1 V, TPS62090 adjustable output version IOUT = 1 A, PWM mode -1.4% +1.4% Feedback voltage VFB IOUT = 0 mA, FREQ = 2.8 MHz, VOUT ≥ 0.8 V, PFM mode -1.4% +3% accuracy(1) (2)(3) IOUT = 0 mA, FREQ = 1.4 MHz, VOUT ≥ 1.2 V, PFM mode -1.4% +3% IOUT = 0 mA, FREQ = 1.4 MHz, VOUT < 1.2V, PFM mode -1.4% +3.7% IFB Feedback input bias current VFB = 0.8V, TPS62090 adjustable output version 10 100 nA VIN ≥ VOUT + 1 V, Fixed output voltage VOUT Output voltage accuracy (2)(3) IOUT = 1 A, PWM mode -1.4% +1.4% IOUT = 0 mA, FREQ = High and Low, PFM mode -1.4% +2.5% Line regulation VOUT = 1.8 V, PWM operation 0.016 %/V Load regulation VOUT = 1.8 V, PWM operation 0.04 %/A (1) For output voltages < 1.2 V, use a 2 x 22 µF output capacitance to achieve +3% output voltage accuracy. (2) Conditions: f = 2.8 MHz, L = 0.47 µH, COUT = 22 µF or f = 1.4 MHz, L = 1 µH, COUT = 22 µF. (3) For more information, see the Power Save Mode Operation section of this data sheet. Copyright © 2012–2014, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS62090 TPS62091 TPS62092 TPS62093 |
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