SG7812K

固定正电压稳压器 POSITIVE FIXED VOLTAGE REGULATOR

DESCRIPTION

The SG7800A/SG7800 series of positive regulators offer self contained, fixed-voltage capability with up to 1.5A of load current and input voltage up to 50V SG7800A series only. These units feature a unique on-chip trimming system to set the output voltages to within±1.5% of nominal on the SG7800A series,±2.0% on the SG7800 series. The SG7800A versions also offer much improved line and load regulation characteristics. Utilizing an improved Bandgap reference design, problems have been eliminated that are normally associated with the Zener diode references, such as drift in output voltage and large changes in the line and load regulation.

FEATURES

• Output voltage set internally to ±1.5% on SG7800A

• Input voltage range to 50V max. on SG7800A

• Two volt input-output differential

• Excellent line and load regulation

• Foldback current limiting

• Thermal overload protection

• Voltages available: 5V, 12V, 15V

• Available in surface mount package