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LM43603PWP Datasheet(PDF) 7 Page - Texas Instruments |
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LM43603PWP Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 50 page  LM43603 www.ti.com SNVSA09B – APRIL 2014 – REVISED SEPTEMBER 2014 7.7 Switching Characteristics Limits apply over the recommended operating junction temperature (TJ) range of -40°C to +125°C, unless otherwise stated. Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated, the following conditions apply: VIN = 12 V, VOUT = 3.3 V, FS = 500 kHz. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SW (SW PIN) Minimum high side MOSFET ON tON-MIN (1) 125 165 ns time Minimum high side MOSFET OFF tOFF-MIN (1) 200 250 ns time OSCILLATOR (SW and SYNC PINS) FOSC- Oscillator default frequency RT pin open circuit 425 500 580 kHz DEFAULT Minimum adjustable frequency 200 kHz FADJ Maximum adjustable frequency With 1% resistors at RT pin 2200 kHz Frequency adjust accuracy 10% VSYNC-HIGH Sync clock high level threshold 2 V VSYNC-LOW Sync clock low level threshold 0.4 V DSYNC-MAX Sync clock maximum duty cycle 90% DSYNC-MIN Sync clock minimum duty cycle 10% Mininum sync clock ON and OFF TSYNC-MIN 80 ns time (1) Ensured by design Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM43603 |
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