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TPS61089RNRR Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS61089RNRR Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 29 page 5 TPS61089, TPS610891 www.ti.com SLVSD38B – NOVEMBER 2015 – REVISED JULY 2016 Product Folder Links: TPS61089 TPS610891 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated 7.5 Electrical Characteristics VIN = 2.7 V to 5.5 V, VOUT = 9 V, TJ = –40°C to 125°C. Typical values are at TJ = 25°C, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLY VIN Input voltage range 2.7 12 V VIN_UVLO Input voltage undervoltage lockout (UVLO) threshold VIN rising 2.7 V VIN falling 2.4 2.5 V VIN_HYS VIN UVLO hysteresis 200 mV VCC VCC regulation voltage ICC = 2 mA, VIN = 8 V 5.8 V VCC_UVLO VCC UVLO threshold VCC falling 2.1 V IQ Quiescent current into VIN pin IC enabled, No load, VIN = 2.7 V to 5.5 V, VFB = 1.3 V, VOUT = 12 V, TJ ≤ 85°C 1 3 µA Quiescent current into VOUT pin IC enabled, No load, VIN = 2.7 V to 5.5 V, VFB = 1.3 V, VOUT = 12 V, TJ ≤ 85°C 100 180 µA ISD Shutdown current into VIN pin IC disabled, VIN = 2.7 V to 5.5 V, TJ ≤ 85°C 1 3 µA OUTPUT VOUT Output voltage range 4.5 12.6 V VREF Reference voltage at FB pin PWM mode 1.188 1.212 1.236 V PFM mode 1.224 V IFB_LKG Leakage current into FB pin VFB = 1.2 V 100 nA VOVP Output overvoltage protection threshold VOUT rising 12.7 13.2 13.6 V VOVP_HYS Output overvoltage protection hysteresis VOUT falling below VOVP 0.25 V tSS Soft startup time COUT(effective) = 47 µF, IOUT = 0 A 2 4 6 ms ERROR AMPLIFIER ISINK COMP pin sink current VFB = VREF + 200 mV, VCOMP = 1.9 V 20 µA ISOURCE COMP pin source current VFB = VREF – 200 mV, VCOMP = 1.9 V 20 µA VCCLP_H High clamp voltage at the COMP pin VFB = 1 V, RILIM = 127 kΩ 2.3 V VCCLP_L Low clamp voltage at the COMP pin VFB = 1.4 V, RILIM = 127 kΩ 1.4 V GEA Error amplifier transconductance VCOMP = 1.9 V 190 µS POWER SWITCH RDS(on) High-side MOSFET on-resistance VCC = 6 V 27 44 m Ω Low-side MOSFET on-resistance VCC = 6 V 19 31 m Ω SWITCHING FREQUENCY fSW Switching frequency RFSW = 301 kΩ 500 kHz RFSW = 46.4 kΩ 2000 kHz tON_min Minimum on time VCC = 6 V 90 180 ns CURRENT LIMIT ILIM Peak switch current limit, TPS61089 RILIM = 127 kΩ 7.3 8.1 8.9 A RILIM = 100 kΩ 9.0 10 11 A VILIM Internal reference voltage at ILIM pin 1.212 V EN LOGIC INPUT VEN_H EN Logic high threshold 1.2 V VEN_L EN Logic Low threshold 0.4 V REN EN pulldown resistor 800 kΩ PROTECTION TSD Thermal shutdown threshold TJ rising 150 °C TSD_HYS Thermal shutdown hysteresis TJ falling below TSD 20 °C |
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