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TPS650250RHBR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS650250RHBR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 35 page  ELECTRICAL CHARACTERISTICS TPS650250 SLVS843 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VDCDC2 STEP-DOWN CONVERTER VI Input voltage range, VINDCDC2 2.5 6 V IO Maximum output current VO = 2.5V 800 mA ISD Shutdown supply current in VINDCDC2 EN_DCDC2 = GND 0.1 1 µA RDS(on) P-channel MOSFET on-resistance VINDCDC2 = VGS = 3.6V 140 300 m Ω ILP P-channel leakage current VINDCDC2 = 6.0V 2 µA RDS(on) N-channel MOSFET on-resistance VINDCDC2 = VGS = 3.6V 150 297 m Ω ILN N-channel leakage current VDS = 6V 7 10 µA ILIMF Forward current limit (P- and N-channel) 2.5V < VINDCDC2 < 6V 1.05 1.16 1.29 A fS Oscillator frequency 1.95 2.25 2.55 MHz 1.8V VINDCDC2 = 2.5V to 6V; 0 mA ≤ IO ≤ 1.6A –2% 2% Fixed output voltage MODE = 0 (PWM/PFM) 2.5V VINDCDC2 = 3V to 6V; 0 mA ≤ IO ≤ 1.6A –2% 2% 1.8V VINDCDC2 = 2.5V to 6V; 0 mA ≤ IO ≤ 1.6A –2% 2% Fixed output voltage MODE = 1 (PWM) 2.5V VINDCDC2 = 3V to 6V; 0 mA ≤ IO ≤ 1.6A –1% 1% VDCDC2 Adjustable output voltage with resistor VINDCDC2 = VDCDC2 + 0.5V (min 2.5V) divider at DEFDCDC2 MODE = 0 –2% 2% to 6V; 0mA ≤ IO ≤ 1.6A (PWM) Adjustable output voltage with resistor VINDCDC2 = VDCDC2 + 0.5V (min 2.5V) divider at DEFDCDC2; MODE = 1 –1% 1% to 6V; 0mA ≤ IO ≤ 1.6A (PWM) VINDCDC2 = VDCDC2 + 0.3 V (min. 2.5 Line regulation 0.0 %/V V) to 6V; IO = 10mA Load regulation IO = 10mA to 1.6A 0.25 %/A VDCDC2 ramping from 5% to 95% of tSS Soft start ramp time 750 µs target value R(L2) Internal resistance from L2 to GND 1 M Ω 6 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS650250 |
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