LM7808CT

3-terminal positive voltage regulator, 40V, 72 dB, 6 mA, TO-220-3

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Price:: US $0.15~2.40 / piece [Get Latest Price]

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	US $0.15~2.40

PartNumber:: LM7808CT

Brand:: National Semiconductor - NS | Pack: TO | D/C: 12+

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Products Upload time: 2012-10-09

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Part Number:LM7808CT
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Product Summary

The LM7808CT is a monolithic 3-terminal positive voltage regulator. The LM7808CT employs internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. The LM7808CT is intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.

Parametrics

LM7808CT absolute maximum ratings: (1)DC Input Voltage: 40V; (2)Internal Power Dissipation: Internally Limited; (3)Maximum Junction Temperature: 150℃; (4)Storage Temperature Range: −65℃ to +150℃; (5)IQ Quiescent Current TJ = 25℃: 6 mA; (6)Ripple Rejection f = 120 Hz, IO = 350 mA, TJ = 25℃: 56 to 72 dB.

Features

LM7808CT features: (1)Complete specifications at 1A load; (2)Output voltage tolerances of ±2% at Tj = 25℃ and ±4% over the temperature range (LM140A/LM340A); (3)Line regulatioof 0.01% of VOUT/V of DVIN at 1A load (LM140A/LM340A); (4)Load regulatioof 0.3% of VOUT/A (LM140A/LM340A); (5)Internal thermal overload protection; (6)Internal short-circuit current limit; (7)Output transistor safe area protection; (8)P+ Product Enhancement tested.