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TPS63710 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS63710 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 36 page 6 TPS63710 SLVSD44 – SEPTEMBER 2017 www.ti.com Product Folder Links: TPS63710 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) This specification applies after there has been a high to low transition on EN. If EN is low while the supply voltage is applied, the shutdown current can be up to 90µA. (2) Please see the application section for how to set the output voltage. (3) Tolerance of VFB voltage and error of gain stage - see also "Low Noise Reference System" 6.5 Electrical Characteristics TJ = –40°C to 125°C, over recommended input voltage range. Typical values are at VIN = 5 V and TJ = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY I(Q) Quiescent supply current IOUT = 0mA, EN = high 15 mA ISD Shutdown supply current EN = low, TJ = -40°C to 85°C (1) 5 25 μA ISD Shutdown supply current EN = low, TJ = -40°C to 125°C (1) 55 μA VUVLO Undervoltage lockout threshold VIN falling, detected at VAUX 2.55 2.6 2.7 V Undervoltage lockout hysteresis VIN rising, detected at VAUX 250 350 mV TSD Thermal shutdown temperature Junction temperature rising 160 °C Thermal shutdown hysteresis Junction temperature falling 20 °C CONTROL (EN, PG) VIH High level input voltage for EN 1 14 V VIL Low level input voltage for EN 0.4 V IIN Input current for EN EN = high 0.01 0.1 μA RIN Input resistance for EN EN = low 400 kΩ PG de-glitch time rising or falling 10 µs VOL_PG PG output low voltage IPG = 1 mA 0.07 0.3 V ILKG_PG Input leakage current (PG) VPG = 5 V 100 nA VVAUX Voltage at VAUX VIN ≥ 5 V, IVAUX = 100 µA 4.6 V IVAUX Current drawn from VAUX 0 100 μA POWER SWITCH ILIM Switch current limit (LSD) 4 V ≤ VIN < 14 V, duty cycle ≤ 70% 1.4 2.1 3 A ILIM Switch current limit (LSD) 3.1 V < VIN < 4 V, duty cycle ≤ 70% 0.8 A RDS(ON) Switch on-resistance HSD switch, VIN ≥ 5 V 80 130 m Ω LSD switch, VIN ≥ 5 V 120 190 RECT switch, VIN ≥ 5 V 40 80 DMAX Maximum duty cycle at SW pin 70% ton,min Minimum on-time 130 ns fS Switching frequency 1400 1500 1600 kHz OUTPUT VOUT Output voltage range |VOUT| < 0.7 x VIN -5.5 -1 V VFB FB regulation voltage -0.7(2) V Output voltage tolerance (3) for VOUT ≤ –1.8 V -1.5% 1.5% Output voltage tolerance (3) for –1.8 V < VOUT ≤ –1 V -2% 1.5% IFB Feedback input bias current VFB = –0.7 V 2 100 nA RDIS Discharge resistance from pin VOUT to GND EN = low 100 Ω Line regulation 0.05 %/A Load regulation 0.02 %/V tdelay Start-up delay time from EN = high to start switching with CCP = 10 µF 5 ms tramp Ramp time from start switching until device has reached 95% of its nominal output voltage CCAP = 47 nF, VOUT = -1.8 V, device not in current limit during start-up 1 ms Iramp Soft-start current into CCAP 55 100 145 µA |
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