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LP3990SD-1.5 Datasheet(PDF) 6 Page - Texas Instruments |
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LP3990SD-1.5 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 24 page LP3990 SNVS251I – MAY 2004 – REVISED MAY 2013 www.ti.com Electrical Characteristics (continued) Unless otherwise noted, VEN =950mV, VIN = VOUT + 1.0V, or 2.0V, whichever is higher. CIN = 1 µF, IOUT = 1 mA, COUT =0.47 µF. Typical values and limits appearing in normal type apply for TJ = 27°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 Timing Characteristics TON Turn On Time (8) To 95% Level VOUT = 0.8 80 150 VIN(MIN) to 6.0V VOUT = 1.5 105 200 µs VOUT = 3.3 175 250 Transient Line Transient Response | δVOUT| Trise = Tfall = 30µs (8)δV IN = 600mV mV 8 16 Response (pk - pk) Load Transient Response | δVOUT| Trise = Tfall = 1µs (8)I OUT = 1mA to 150mA 55 100 mV COUT = 1µF (8) This electrical specification is guaranteed by design. Output Capacitor, Recommended Specifications Limit Symbol Parameter Conditions Nom Units Min Max COUT Output Capacitance Capacitance(1) 1.0 0.7 µF ESR 5 500 m Ω (1) The full operating conditions for the application should be considered when selecting a suitable capacitor to ensure that the minimum value of capacitance is always met. Recommended capacitor type is X7R. However, dependent on application, X5R, Y5V, and Z5U can also be used. (See Application Hints) 6 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: LP3990 |
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