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MP3425 Datasheet(PDF) 3 Page - Monolithic Power Systems |
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MP3425 Datasheet(HTML) 3 Page - Monolithic Power Systems |
3 / 13 page MP3425- 3A, 55V BOOST CONVERTER WITH PROGRAMMABLE SWITCHING FREQUENCY AND UVLO MP3425 Rev.1.02 www.MonolithicPower.com 3 6/28/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. ELECTRICAL CHARACTERISTICS VIN = VEN = 5V, TA = +25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Operating Input Voltage VIN 3.1 22 V Undervoltage Lockout VIN Rising 2.8 3.1 V Undervoltage Lockout Hysteresis 250 mV VDD Voltage Gate drive Voltage supply VVDD C = 10nF 6 V Supply Current (Shutdown) VEN = 0V 1 μA Supply Current (Quiescent) VFB = 1.35V 650 900 μA Switching Frequency FSET = 84.5kΩ 0.44 0.55 0.66 MHz Minimum Off time VFB = 0V 100 ns Minimum On time VFB = 1.35V 100 ns EN High Threshold VEN Rising (switching) 1.45 1.5 1.55 V EN High Threshold VEN Rising (micro power) 1.0 V EN Low Threshold 0.5 V EN Input Bias Current VEN = 0V, 5V 0.1 1 μA UVLO Hysteresis current into EN pin 1.0 < EN < 1.4 4 μA Soft-Start Current 5 μA FB Voltage 1.200 1.225 1.250 V FB Input Bias Current -200 -100 nA Error Amp Voltage Gain AVEA 300 V/V Error Amp Transconductance ( A V μ ) GEA 160 μmho Error Amp Output Current 20 μA GCS : I(SW) / Vcomp GCS 9 A/V SW On-Resistance RON 90 mΩ SW Current Limit Duty Cycle = 0% 3.5 5 A Thermal Shutdown 160 °C |
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