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AME5249A Datasheet(PDF) 8 Page - Analog Microelectronics |
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AME5249A Datasheet(HTML) 8 Page - Analog Microelectronics |
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8 / 21 page  AME 8 1.5MHz, 600mA Synchronous Buck Converter AME5249A Rev.A.01 n Electrical Specifications V IN=3.6V, EN=VIN, TA = 25 OC, unless otherwise noted Parameter Symbol Min Typ Max Units Input Voltage VIN 2.5 5.5 V -3 3 -3 3 Output Voltage Accuracy (Adj) ∆VOUT -3 3 Adjustable Output Range VOUT VFB VIN- 0.2 V 0.588 0.6 0.612 0.585 0.6 0.615 Feedback Pin Bias Current IFB -50 50 nA 300 400 20 35 Shutdown Current ISHDN 0.1 1 Reference Voltage Line Regulation ∆VFB 0.4 Output Voltage Line Regulation REGLINE 0.4 Output Voltage Load Regulation REGLOAD 0.5 % High-side Switch On-Resistance RDS,ON,HI 0.4 0.6 Low-side Switch On-Resistance RDS,ON,LO 0.35 0.5 Switch Current Limit ISW,CL 1 1.25 A Switch Leakage Current ISW,LK 0.01 1 µA Switch Frequency fOSC 1.2 1.5 1.8 Short Circuit Oscillator Frequency fOSC,SCR 0.21 Maximum Duty Cycle DMAX 100 % Ω MHz VEN=0V, VSW=0V or 3.6V, VIN=3.6V VFB=0.6V or VOUT=100% VFB=0V or VOUT=0V Test Condition VIN=2.5 to 5.5V, VOUT=1.0V~1.8V PWM Mode TA=-40 oC to +85oC % V VIN=VOUT+ ∆V to 5.5V (Note 1) PWM Mode VIN=VOUT+ ∆V to 5.5V (Note 1) VOUT=2.5V~3.3V, PWM Mode TA=25 oC IQ Quiescent Current VFB=0.5V or VOUT=90%, IOUT=0A VFB=0.62V or VOUT=103%, IOUT=0A ∆VOUT Output Voltage Accuracy (for every fixed output voltage) Feedback Voltage VFB µA %/V IOUT=100mA to 600mA ISW=100mA ISW=-100mA VIN=3V, VOUT=1.2V 2.5≦VIN≦5.5V VEN=0V, VIN=4.2V 2.5≦VIN≦5.5V |
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