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XR76115EVB Datasheet(PDF) 3 Page - Exar Corporation |
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XR76115EVB Datasheet(HTML) 3 Page - Exar Corporation |
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3 / 16 page  XR76115 © 2015 Exar Corporation 3/16 www.exar.com Rev. 1B Parameter Min. Typ. Max. Units Conditions Reference voltage VREF, Reference voltage 0.597 0.600 0.603 V VIN=5V-22V VCC regulating 0.596 0.600 0.604 V VIN=4.5V-5.5V VCC tied to VIN 0.594 0.600 0.606 V • VIN=5V-22V VCC regulating, VIN=4.5V-5.5V VCC tied to VIN DC load regulation ±0.25 % CCM operation, closed loop, applies to any COUT DC Line regulation ±0.12 % Parameter Min. Typ. Max. Units Conditions Programmable Constant On-Time On-Time 1 1.66 1.95 2.24 µs • RON=140kΩ, VIN=22V f corresponding to On-Time 1 243 280 329 kHz VIN=22V, VOUT=12V Minimum Programmable On- Time 109 ns RON=6.98kΩ, VIN=22V On-Time 2 170 200 230 ns • RON=6.98kΩ, VIN=12V f corresponding to On-Time 2 362 417 490 kHz VOUT=1.0V On-Time 3 365 430 495 ns • RON=16.2kΩ, VIN=12V Minimum Off-Time 250 350 ns • Diode Emulation Mode Zero crossing threshold -2 mV DC value measured during test Soft-Start SS Charge current -14 -10 -6 µA • SS Discharge current 1 3 mA • Fault present VCC Linear Regulator VCC Output Voltage 4.8 5.0 5.2 V • VIN=6V to 22V, Iload=0 to 30mA 4.51 4.7 • VIN=5V, Iload=0 to 20mA Dropout Voltage 100 300 490 mV • IVCC=30mA Power Good Output Power Good Threshold -10 -7.5 -5 % Power Good Hysteresis 2 4 % Power Good Sink Current 1 15 mA Protection: OCP, OTP, Short-Circuit Hiccup timeout 110 ms ILIM pin source current 45 50 55 µA ILIM current temperature coefficient 0.4 %/°C ILIM comparator offset -8 0 +8 mV • Current limit blanking 100 ns Thermal shutdown threshold 150 °C Rising temperature Thermal Hysteresis 15 °C Feedback pin short-circuit threshold 50 60 70 % • Percent of VREF, short circuit is active After PGOOD is up Output Power Stage High-side MOSFET RDSON 7 10 mΩ VGS=4.5V, IDS=2A Low-side MOSFET RDSON 4 4.6 mΩ VGS=4.5V, IDS=2A Maximum Output Current 15 A • |
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