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LM140LAH-15/883 bảng dữ liệu(PDF) 2 Page - Texas Instruments |
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LM140LAH-15/883 bảng dữ liệu(HTML) 2 Page - Texas Instruments |
2 / 11 page LM140LQML Series 3-Terminal Positive Regulators General Description The LM140L series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. The LM140LA is an improved version of the LM78LXX series with a tighter out- put voltage tolerance (specified over the full military tem- perature range), higher ripple rejection, better regulation and lower quiescent current. The LM140LA regulators have ±2% V OUT specification, 0.04%/V line regulation, and 0.01%/mA load regulation. When used as a zener diode/resistor com- bination replacement, the LM140LA usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribu- tion problems associated with single point regulation. The voltages available allow the LM140LA to be used in logic systems, instrumentation, Hi-Fi, and other solid state elec- tronic equipment. Although designed primarily as fixed volt- age regulators, these devices can be used with external components to obtain adjustable voltages and currents. With adequate heat sinking the regulator can deliver 100 mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistor is provided to limit internal power dissipa- tion. If internal power dissipation becomes too high for the heat sinking provided, the thermal shut-down circuit takes over, preventing the IC from overheating. Features n Line regulation of 0.04%/V n Load regulation of 0.01%/mA n Output voltage tolerances of ±2% at T j = 25˚C and ±4% over the temperature range n Output current of 100 mA n Internal thermal overload protection n Output transistor safe area protection n Internal short circuit current limit Output Voltage Options Device ID Output Voltage LM140LA-5.0 5V LM140LA-12 12V LM140LA-15 15V Ordering Information NS Part Number JAN Part Number NS Package Number Package Description LM140LAH-5.0/883 H03A 3LD T0–39 Metal Can LM140LAH-12/883 H03A 3LD T0–39 Metal Can LM140LAH-15/883 H03A 3LD T0–39 Metal Can Connection Diagrams TO-39 Metal Can Package (H) 20155302 Bottom View See NS Package Number H03A March 2006 © 2006 National Semiconductor Corporation DS201553 www.national.com |
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