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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS657052YZHT Fiches technique(PDF) 3 Page - Texas Instruments |
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TPS657052YZHT Fiches technique(HTML) 3 Page - Texas Instruments |
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3 / 22 page  TPS657052 TPS657051 www.ti.com SLVSA08 – FEBRUARY 2010 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT VIN1/2 Input voltage range for step-down converter DCDC1and DCDC2 3.3 6.0 V IOUTDCDC1/2 Output current at L 400 mA L Inductor at L 1.5 2.2 4.7 µH VINLDO Input voltage range for LDO 1.7 6.0 V ILDO Output current at LDO 200 mA CINDCDC1/2 Input Capacitor at VIN1 and VIN2 4.7 µF COUTDCDC1/2 Output Capacitor at VOUT1, VOUT2 4.7 10 22 µF CINLDO Input Capacitor at VINLDO 2.2 µF COUTLDO Output Capacitor at VLDO 2.2 µF TA Operating ambient temperature –40 85 °C TJ Operating junction temperature –40 125 °C ELECTRICAL CHARACTERISTICS Unless otherwise noted: VIN1=VIN2=VINLDO=3.6 V, L=LQMP21P 2.2µH, COUTDCDCx = 10µF, COUTLDO =2.2µF, TA = –40°C to +85°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT DCDC1 and DCDC2 enabled, IOUT = 0 mA, MODE =0 40 µA (PFM mode), LDO disabled DCDC1 or DCDC2 enabled, IOUT = 0 mA, Operating quiescent current DCDCx MODE =0 25 µA IQ (PFM mode), LDO disabled DCDC1 or DCDC2 enabled, IOUT = 0 mA. 4 mA MODE =1 (forced PWM mode), LDO disabled Operating quiescent current LDO DCDC1 and DCDC2 disabled, LDO enabled. 25 37 µA IOUT = 0mA ISD Shutdown current DCDC1, DCDC2, and LDO disable 5 12 µA DIGITAL PINS (EN1, EN2, ENLDO, MODE) VIH High level input voltage for EN1, 1.2 VCC V EN2, ENLDO, MODE VIL Low level input voltage for EN1, 0.4 V EN2, ENLDO, MODE ILKG Input leakage current EN1, EN2, ENLDO, MODE tied to GND 0.01 0.10 mA or VIN = VIN2 STEP-DOWN CONVERTERS VIN1 Input voltage for DCDC1 3.3 6.0 V VIN2 Input voltage for DCDC2 3.3 6.0 V Internal undervoltage lockout VIN1 = VIN2 falling 2.15 2.2 2.25 V threshold UVLO Internal undervoltage lockout VIN1 = VIN2 rising 120 mV threshold hysteresis Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS657052 TPS657051 |
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