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LP3991 Datasheet(PDF) 5 Page - Texas Instruments |
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LP3991 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 20 page  LP3991 www.ti.com SNVS296G – DECEMBER 2006 – REVISED JANUARY 2011 Electrical Characteristics con't. Unless otherwise noted, VEN =950mV, VIN = VOUT + 0.5V, or 1.8V, whichever is higher. CIN = 1µF, IOUT = 1.0mA, COUT =4.7µF. Typical values and limits appearing in normal type apply for TA = 25°C. Limits appearing in boldface type apply over the full junction temperature range for operation, −40 to +125°C. (1) Limit Symbol Parameter Conditions Typ Units Min Max Enable Control Characteristics IEN Maximum Input Current at VEN VEN = 0V, VIN = 3.6V 0.001 µA (2) Input VEN = VIN = 3.6V 3 5.5 VIL Low Input Threshold VIN = 1.65V to 3.6V 0.4 V VIH High Input Threshold VIN = 1.65V to 3.6V 0.95 V Timing Characteristics TON Turn On Time (3) To 95% Level VOUT ≤ 2.0V 100 µs VIN(MIN) to 3.6V VOUT > 2.0V 140 Line Transient Response | δVOUT| Trise = Tfall = 30µs (3) mV 6 δVIN = 600mV (pk - pk) Transient Load Transient Response | δVOUT| Trise = Tfall = IOUT = 0 mA to 300mA 140 Response 1µs (3) IOUT = 1mA to 300mA 110 IOUT = 300mA to 1mA 80 IOUT = 0mA to 200mA 110 IOUT = 1mA to 200mA 80 mV IOUT = 200mA to 1mA 60 IOUT = 0mA to 150mA 100 IOUT = 1mA to 150mA 70 IOUT = 150mA to 1mA 50 Overshoot on Start-up 0 2 % IIR In-Rush Current (3) 600 1000 mA (1) All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production at TJ = 25°C or correlated using Statistical Quality Control methods. Operation over the temperature specification is guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control. (2) Enable Pin has an internal 1.2M Ω typical, resistor connected to GND. (3) This electrical specification is guaranteed by design. Copyright © 2006–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LP3991 |
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