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MAX16904 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX16904 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 14 page 2.1MHz, High-Voltage, 600mA Mini-Buck Converter 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VSUP = +14V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SKIP-Mode Peak Current ISKIP 350 mA High-Side DMOS RDSON RON,HS VBIAS = 5V 400 800 m Low-Side DMOS RDSON RON,LS 250 450 m DMOS Peak Current-Limit Threshold IMAX 0.85 1.05 1.22 A Soft-Start Ramp Time tSS 7 8 9 ms LX Rise Time tRISE,LX 5 ns Minimum On-Time tON 80 ns PWM Switching Frequency fSW Internally generated 1.925 2.1 2.275 MHz SYNC Input Frequency Range fSYNC 1.8 2.6 MHz Spread-Spectrum Range SS Spread-spectrum option only +6 % PGOOD VTHR,PGD VOUT rising 93 PGOOD Threshold VTHF,PGD VOUT falling 88 91 94 % PGOOD Debounce tDEB 10 μs PGOOD High Leakage Current ILEAK,PGD TA = +25°C 1 μA PGOOD Output Low Level VOUT,PGD Sinking 1mA 0.4 V LOGIC LEVELS VIH,EN 2.4 EN Level VIL,EN 0.6 V EN Input Current IIN,EN VEN = VSUP = +42V, TA = +25°C 1 μA VIH,SYNC 1.4 SYNC Switching Threshold VIL,SYNC 0.4 V SYNC Internal Pulldown RPD,SYNC 200 k THERMAL PROTECTION Thermal Shutdown TSHDN 175 °C Thermal Shutdown Hysteresis TSHDN,HYS 15 °C Note 2: When the typical minimum on-time of 80ns is violated, the device skips pulses. Note 3: Guaranteed by design; not production tested. |
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