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TPS62170DSGR Datasheet(PDF) 5 Page - Texas Instruments |
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TPS62170DSGR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 34 page 5 TPS62170, TPS62171, TPS62172, TPS62173 www.ti.com SLVSAT8D – NOVEMBER 2011 – REVISED DECEMBER 2015 Product Folder Links: TPS62170 TPS62171 TPS62172 TPS62173 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated (1) The device is still functional down to under voltage lockout (see parameter VUVLO). (2) Current into VIN pin. (3) This is the static current limit. It can be temporarily higher in applications due to internal propagation delay (see Current Limit and Short Circuit Protection). (4) This is the voltage regulated at the FB pin. (5) This is the accuracy provided by the device itself (line and load regulation effects are not included). For fixed voltage versions, the (internal) resistive feedback divider is included. 7.5 Electrical Characteristics Over free-air temperature range (TA = –40°C to 85°C), typical values at VIN = 12 V and TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range(1) 3 17 V IQ Operating quiescent current EN = High, IOUT = 0 mA, device not switching 17 25 µA ISD Shutdown current(2) EN = Low 1.5 4 µA VUVLO Undervoltage lockout threshold Falling input voltage 2.6 2.7 2.82 V Hysteresis 180 mV TSD Thermal shutdown temperature rising temperature 160 °C Thermal shutdown hysteresis falling temperature 20 CONTROL (EN, PG) VEN_H High level input threshold voltage (EN) 0.9 0.6 V VEN_L Low level input threshold voltage (EN) 0.56 0.3 V ILKG_EN Input leakage current (EN) EN = VIN or GND 0.01 1 µA VTH_PG Power good threshold voltage Rising (%VOUT) 92% 95% 98% Falling (%VOUT) 87% 90% 93% VOL_PG Power good output low voltage IPG = –2 mA 0.07 0.3 V ILKG_PG Input leakage current (PG) VPG = 1.8 V 1 400 nA POWER SWITCH RDS(ON) High-side MOSFET ON-resistance VIN ≥ 6 V 300 600 m Ω VIN= 3 V 430 Low-side MOSFET ON-resistance VIN≥ 6 V 120 200 m Ω VIN = 3 V 165 ILIMF High-side MOSFET forward current limit(3) VIN = 12 V, TA= 25°C 0.85 1.05 1.35 A OUTPUT VREF Internal reference voltage(4) 0.8 V ILKG_FB Pin leakage current (FB) TPS62170, VFB= 1.2 V 5 400 nA VOUT Output voltage range (TPS62170) VIN ≥ VOUT 0.9 6.0 V Initial output voltage accuracy(5) PWM mode operation, VIN ≥ VOUT + 1 V –3% 3% Power save mode operation, COUT= 22 µF -3.5% 4% DC output voltage load regulation VIN = 12 V, VOUT = 3.3 V, PWM mode operation 0.05 %/A DC output voltage line regulation 3 V ≤ VIN ≤ 17 V, VOUT = 3.3 V, IOUT = 0.5 A, PWM mode operation 0.02 %/V |
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