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ILC6391CP-25 Datasheet(PDF) 3 Page - Impala Linear Corporation |
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ILC6391CP-25 Datasheet(HTML) 3 Page - Impala Linear Corporation |
3 / 9 page SOT-89 Step-Up PFM Switcher with Auto-Load Sense Impala Linear Corporation 3 (408) 574-3939 www.impalalinear.com Feb 2001 ILC6390 1.1 Parameter Symbol Conditions Min Typ Max Units Output Voltage VOUT Test Circuit of Figure 4 4.875 5.000 5.125 V Input Voltage VIN 10 V Operation Startup Voltage VST IOUT = 1mA 0.80 0.9 V Operation Hold Voltage VST IOUT = 1mA 0.70 V Supply Current 1 (See Note 1) IDD 1 VOUT = 4.75V 31.7 63.4 µA Supply Current 2 IDD 2 VOUT = 5.5V 2.4 4.8 µA EXT “High” On-Resistance REXTH VOUT = 4.75V, VEXT = VOUT-0.4 50 75 Ω EXT “Low” On-Resistance REXTL VOUT = 4.75V, VEXT = 0.4 50 75 Ω Duty Ratio 1 DUTY 1 VOUT = 4.75V, Measuring of EXT waveform 70 75 80 % Duty Ratio 2 DUTY 2 VIN = VOUT x 0.95, IOUT = 1mA, Measuring of EXT High State 50 55 60 % Maximum Oscillation Freq. 1 MFO 1 VOUT = 4.75V, 75% duty 85 100 115 kHz Maximum Oscillation Freq. 2 MFO 2 VIN = VOUT x 0.95, 55% duty 153 180 207 kHz Stand = by Current ISTB VOUT = 4.75V 0.5 µA CE “High” Voltage VCEH VOUT = 4.75V, Existence of EXT Oscillation 0.75 V CE “Low” Voltage VCEL VOUT = 4.75V, Disappearance of EXT Oscillation 0.20 V CE “High” Current ICEH VCE = VOUT = 4.75V 0.25 µA CE “Low” Current ICEL VOUT = 4.75V, VCE = 0V -0.25 µA Efficiency EFFI Test Circuit Figure 4 85 % Note: 1. “Supply Current 1” is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which results in less average power consumption. Electrical Characteristics ILC6391 VOUT = 5.0V TA = 25°C. Unless otherwise specified, VIN = VOUT x 0.6, IOUT = 50mA. See schematic, Fig.4 |
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