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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LP2960 Arkusz danych(PDF) 3 Page - National Semiconductor (TI) |
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LP2960 Arkusz danych(HTML) 3 Page - National Semiconductor (TI) |
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3 / 17 page  Electrical Characteristics Limits in standard typeface are for T J = 25˚C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: C IN = 4.7 µF, VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 10 µF for 5V parts or COUT = 22 µF for 3.3V parts, Feedback pin is tied to VTAP pin, Output pin is tied to Sense pin, VS/D = 2V. (Continued) Symbol Parameter Conditions Typ LP2960AI (Note 14) LP2960I (Note 14) Units Min Max Min Max V REF Reference Voltage 1.235 1.220 1.210 1.250 1.265 1.210 1.195 1.260 1.275 V Reference Voltage Line Regulation (Note 13) 0.05 0.1 0.30 0.2 0.4 % Reference Voltage Load Regulation I REF = 0– 200 µA 0.45 0.6 0.9 1.2 1.5 % Reference Voltage Temperature Coefficient (Note 5) 20 ppm/˚C I B(FB) Feedback Pin Bias Current −20 −50 −70 −50 −70 nA DROPOUT DETECTION COMPARATOR I OH Output HIGH Leakage V OH = 30V 0.01 1 2 1 2 µA V OL Output LOW Voltage V IN = VO(NOM) − 1V I O(COMP) = 400 µA 125 250 400 250 400 mV V THR(max) Upper Threshold Voltage (Note 9) −60 −80 −100 −35 −25 −80 −100 −35 −25 mV V THR(min) Lower Threshold Voltage (Note 9) −85 −130 −200 −70 −35 −130 −200 −70 −35 mV HYST Hysteresis (Note 9) 25 mV SHUTDOWN INPUT V OS Input Offset Voltage (Referred to V REF) ±5 −18 −24 18 24 −18 −24 18 24 mV HYST Hysteresis (Referred to V REF)10 mV I B Input Bias Current V S/D = 0– 5V −20 −60 −100 60 100 −60 −100 60 100 nA I OUT(S/D) Regulator Output Current in Shutdown (Note 12) 3 12 20 12 20 µA AUXILIARY COMPARATOR V OS Input Offset Voltage (Referred to V REF) ±5 −15 −20 15 20 −15 −20 15 20 mV HYST Hysteresis (Referred to V REF)10 mV I B Input Bias Current V COMP = 0– 5V −20 −60 −100 60 100 −60 −100 60 100 nA I OH Output HIGH Leakage V OH = 30V V COMP = 1.3V 0.01 1 2 1 2 µA V OL Output LOW Voltage V COMP = 1.1V I O = 400 µA 125 250 400 250 400 mV Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the de- vice outside of its rated operating conditions. Note 2: The maximum allowable power dissipation is a function of the maximum junction temperature, TJ (max), the junction-to-ambient thermal resistance, θJ−A, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. See APPLICATION HINTS for additional information on heatsinking and thermal resistance. Note 3: When used in dual-supply systems where the regulator load is returned to a negative supply, the output voltage must be diode-clamped to ground. www.national.com 3 |
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