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TPS61062YZFT Datasheet(PDF) 4 Page - Texas Instruments |
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TPS61062YZFT Datasheet(HTML) 4 Page - Texas Instruments |
4 / 22 page www.ti.com DISSIPATION RATINGS RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS TPS61060 TPS61061 TPS61062 SLVS538 – NOVEMBER 2004 TA≤ 25°C TA = 70° C TA = 85°C PACKAGE RθJA POWER RATING POWER RATING POWER RATING QFN(1) 270 °C/W 370 mW 204 mW 148 mW QFN(2) 60 °C/W 1.6W 916mW 666mW CSP(3) 220 °C/W 454 mW 250 mW 181 mW CSP(4) 110 °C/W 909 mW 500mW 363 mW (1) Soldered PowerPAD on a standard 2-layer PCB without vias for thermal pad. (2) Soldered PowerPAD on a standard 4-layer PCB with vias for thermal pad. (3) Rθ is based on a 1-layer PCB according to JEDEC standard. (4) Rθ is based on a 2-layer PCB according to JEDEC standard. Refer to application section on how to improve thermal resistance RθJA. MIN TYP MAX UNIT VI Input voltage range 2.7 6.0 V L Inductor(1) 22 µH CI Input capacitor(1) 1 µF CO Output capacitor(1) 0.22 1 µF TA Operating ambient temperature -40 85 °C TJ Operating junction temperature -40 125 °C (1) Refer to application section for further information V in = 3.6 V, EN = VIN, TA= –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY CURRENT VIN Input voltage range 2.7 6.0 V IQ Operating quiescent current into Vin Device not switching 1 mA ISD Shutdown current EN = GND 1 10 µA VUVLO Undervoltage lockout threshold VIN falling 1.65 1.8 V VHYS Undervoltage lockout hysteresis 50 mV ENABLE AND ILED VEN Enable high-level voltage VIN = 2.7 V to 6.0 V 1.2 V VEN Enable low-level voltage VIN = 2.7 V to 6.0 V 0.4 V REN Enable pulldown resistor 200 300 k Ω tshtdn Enable-to-shutdown delay (1) EN = high to low 50 ms tPWML PWM low-level signal time (1) PWM signal applied to EN 25 ms VILED ILED high-level voltage VIN = 2.7 V to 6.0 V 1.2 V VILED ILED low-level voltage VIN = 2.7 V to 6.0 V 0.4 V IILED ILED input leakage current ILED = GND or VIN 0.1 3 µA DAC resolution 5 Bit 15.6 mV tup Increase feedback voltage one step ILED = high to low 1 75 us tdown Decrease feedback voltage one step ILED = high to low 180 300 us tdelay Delay time between up/down steps ILED = low to high 1.5 us toff Digital programming off, VFB=500mV ILED = high to low 720 us (1) A PWM low signal applied to EN for a period of time ( ≥25 ms) could cause a device shutdown. After a period of ≥50 ms the device definitely enters shutdown mode. 4 |
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