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MP2147 Fiches technique(PDF) 4 Page - Monolithic Power Systems |
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MP2147 Fiches technique(HTML) 4 Page - Monolithic Power Systems |
4 / 19 page MP2147 – 5.5V, 4A, 1.2MHz, COT, BUCK SWITCHER MP2147 Rev. 1.1 www.MonolithicPower.com 4 6/8/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. ELECTRICAL CHARACTERISTICS VIN = 3.6V, TA = 25°C, unless otherwise noted. Parameters Symbol Condition Min Typ Max Units Supply Current (Quiescent) IQ VIN=3.6V, VEN=2V, VFB = 0.65V 40 60 μA Shutdown Current VEN = 0V 0.1 1 μA IN Under-Voltage Lockout Threshold 2.4 2.55 2.7 V IN Under-Voltage Lockout Hysteresis 300 mV Regulated FB Voltage VFB 2.8V<VIN<5.5V 0.594 0.600 0.606 V FB Input Current VFB = 0.65V 50 nA EN High Threshold 1.6 V EN Low Threshold 0.4 V VEN = 2V 2 EN Input Current VEN = 0V 0 μA Internal Soft-Start Time (5) τSS 1.5 ms High-Side Switch On-Resistance RDSON_P 22 mΩ Low-Side Switch On-Resistance RDSON_N 14 mΩ SW Leakage Current 0 1 μA High-Side Switch Current Limit Sourcing 6 A Sinking, PWM Mode 4 Low-Side Switch Current Limit (6) Sinking, PFM Mode 0 A Oscillator Frequency 0.96 1.2 1.44 MHz Minimum On Time τON_MIN 50 ns Minimum Off Time τOFF_MIN 60 ns PG UV Threshold Rising PGTH_Hi 0.9 VFB PG UV Threshold Falling PGTH_Lo 0.85 VFB PG OV Threshold Rising PGTH_Hi 1.15 VFB PG OV Threshold Falling PGTH_Lo 1.1 VFB PG Delay PGTD 140 μs PG Sink Current Capability Sink 1mA 0.4 V PG INTERNEL Pull Up Resistor 500 kΩ Discharge Resistor 150 Ω Thermal Shutdown Threshold (6) 150 °C Thermal Shutdown Hysteresis (6) 20 °C MODE Forced PWM Threshold VIN=3.6V, VEN=2V 1.2 V MODE PFM Threshold VIN=3.6V, VEN=2V 0.4 V Notes: 5) Guaranteed by characterization 6) Guaranteed by design. |
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