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TPS650231YFFT Datasheet(PDF) 7 Page - Texas Instruments |
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TPS650231YFFT Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 55 page  TPS650231 www.ti.com SLVSAE3 – AUGUST 2010 ELECTRICAL CHARACTERISTICS VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDCDC1 STEP-DOWN CONVERTER VI Input voltage range, VINDCDC1 2.5 6 V IO Maximum output current 1700 mA rDS(on) P-channel MOSFET on-resistance VINDCDC1 (VINDCDC13) = V(GS) = 3.6 V 125 261 m Ω Ilkg P-channel leakage current VINDCDC1 (VINDCDC13) = 6 V 2 mA rDS(on) N-channel MOSFET on-resistance VINDCDC1 (VINDCDC13) = V(GS) = 3.6 V 130 260 m Ω Ilkg N-channel leakage current V(DS) = 6 V 7 10 mA Forward current limit (P-channel and 2.5 V < V(VINDCDC1) < 6 V 1.94 2.19 2.44 A N-channel) fS Oscillator frequency 1.95 2.25 2.55 MHz Fixed output voltage VINDCDC1 (VINDCDC13) = 2.5 V to 6 V; –2% 2% FPWMDCDC1=0 0 mA ≤ IO ≤ 1.7 A All VDCDC1 Fixed output voltage VINDCDC1 (VINDCDC13) = 2.5 V to 6 V; –1% 1% FPWMDCDC1=1 0 mA ≤ IO ≤ 1.7 A Adjustable output voltage with resistor VINDCDC1 (VINDCDC13) = VDCDC1 + 0.5 V –2% 2% divider at DEFDCDC1; FPWMDCDC1=0 (min 2.5 V) to 6 V; 0 mA ≤ IO ≤ 1.7 A Adjustable output voltage with resistor VINDCDC1 (VINDCDC13) = VDCDC1 + 0.5 V –1% 1% divider at DEFDCDC1; FPWMDCDC1=1 (min 2.5 V) to 6 V; 0 mA ≤ IO ≤ 1.7 A VINDCDC1 (VINDCDC13) = VDCDC1 + 0.3 V Line Regulation 0 %/V (min. 2.5 V) to 6 V; IO = 10 mA Load Regulation IO = 10 mA to 1700 mA 0.25 %/A tStart Start-up time Time from active EN to start switching 145 175 200 ms tRamp VOUT ramp-up time Time to ramp from 5% to 95% of VOUT 400 750 1000 ms Internal resistance from L1 to GND 1 M Ω VDCDC1 discharge resistance DCDC1 discharge = 1 300 Ω Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s) : TPS650231 |
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