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L4938ND Datasheet(PDF) 4 Page - STMicroelectronics |
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L4938ND Datasheet(HTML) 4 Page - STMicroelectronics |
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4 / 12 page  ELECTRICAL CHARACTERISTICS (VS = 14V; –40 °C ≤ TJ ≤ 125°C unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VS Operating Supply Voltage 25 V VO1 Standby Output Voltage 6V ≤ VS ≤ 25V 1mA ≤ IO1 ≤ 50mA 4.90 5.00 5.10 V VO2 -VO1 Output Voltage 2 Tracking Error (note 1) 6V ≤ VS ≤ 25V 5mA ≤ IO2 ≤ 500mA Enable = LOW –25 +25 mV IADJ ADJ Input Current IO1 = 1mA; IO2 = 5mA –1 0.1 1 µA VDP1 Dropout Voltage 1 IO1 = 10mA IO1 = 50mA 0.1 0.2 0.25 0.4 V V VIO1 Input to Output Voltage Difference in Undervoltage Condition VS = 4V, IO1 = 35mA 0.4 V VDP2 Dropout Voltage 2 IO1 = 100mA IO1 = 500mA 0.2 0.3 0.3 0.6 V V VIO2 Input to Output Voltage Difference in Undervoltage Condition VS = 4.6V, IO1 = 350mA 0.6 V VOL 1.2 Line Regulation 6V ≤ VS ≤ 25V IO1 = 1mA; IO2 = 5mA 20 mV VOLO1 Load Regulation 1 1mA ≤ IO1 ≤ 50mA 25 mV VOLO2 Load Regulation 2 5mA ≤ IO2 ≤ 500mA 50 mV ILIM1 Current Limit 1 VO1 = 4.5V VO1 = 0V (note 2) 55 25 100 50 200 100 mA mA ILIM2 Current Limit 2 VO2 = 0V 550 1000 1700 mA IQSB Quiescent Current Standby Mode (output 2 disabled) IO1 = 0.3mA; TJ < 100 °C VEN ≥ 2.4V VS = 14V VS = 3.5V 210 340 290 850 µA µA IQ Quiescent Current IO1 = 50mA IO1 = 500mA 30 mA ENABLE VENL Enable Input LOW Voltage (output 2 active) –0.3 1.5 V VENH Enable Input HIGH Voltage 2.4 7 V VENhyst Enable Hysteresis 30 75 200 mV IEN Enable Input Current 0V < VEN < 1.2V 2.5V < VEN <7V –10 –1 –1.5 0 –0.5 +1 µA µA L4938N - L4938ND - L4938NPD 4/12 |
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