This part is a kind of semiconductor called AN7809NSP.

Function of this product has (AN78xxNSP) 3-pin positive output voltage regulator (1 A type).

Manufacturers : Panasonic Semiconductor

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Voltage Regulators AN78xxNSP Series 3-pin positive output voltage regulator (1 A type) I Overview The AN78xxNSP series is a 3-pin fixed positive output type monolithic voltage regulator housed in surface mounting package. Stabilized fixed output voltage is obtained from unstable DC input voltage with using minimum external components. 9 types of fixed output voltage are available; 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V and 18 V. They can be used widely in power circuits with current capacity up to 1 A. 6.50±0.20 5.30±0.10 (4.35) (3.00) Unit: mm 1.00±0.20 (1.80) (2.50) 5.50±0.20 (5.50) 9.80±0.20 (0.20) 2.50 2 1 2.30 4.60±0.10 I Features • Output voltage: 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V, 18 V • Built-in overcurrent limit circuit • Built-in thermal overload [ ... ]

AN7809NSP PDF Datasheet Download