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LMR14020-Q1 Datasheet(PDF) 6 Page - Texas Instruments |
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LMR14020-Q1 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 32 page LMR14020-Q1 SNVSAG4 – NOVEMBER 2015 www.ti.com 6.6 Switching Characteristics Over the recommended operating junction temperature range of -40 °C to 125 °C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Switching frequency RT = 11.5 kΩ 1758 1912 2066 fSW kHz Switching frequency range at SYNC mode 250 2300 FDITHER Switching frequency dithering Spread spectrum option, frequency ±6% dithering over center frequency VSYNC_HI SYNC clock high level threshold 1.7 V VSYNC_LO SYNC clock low level threshold 0.5 TSYNC_MIN Minimum SYNC input pulse width Measured at 500 kHz, VSYNC_HI > 3 V, 30 ns VSYNC_LO < 0.3 V TLOCK_IN PLL lock in time Measured at 500 kHz 100 µs TON_MIN Minimum controllable on time VIN = 12 V, BOOT to SW = 5.8 V, ILoad = 75 ns 1 A DMAX Maximum duty cycle fSW = 200 kHz 97% 6 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: LMR14020-Q1 |
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