原标题：LM723组成的可调稳压电源电路

　　LM723组成的可调稳压电源电路

　　此电路用一片电压调压专用电路LM723为核心，调节P1可实现输出电压从0-30V连续可调，Q1为电流驱动扩展用(需用散热器)。R3供保护电路用的取样电阻。该电路简单可靠、其稳压性能指标也非常不错。电路器件参数见附表。

　　LM723

　　150 mA Adjustable Output Linear Regulator / LDO

　　Description

　　The LM723/LM723C is a voltage regulator designed primarily for series regulator applications. By itself, it will supply output currents up to 150 mA; but external transistors can be added to provide any desired load current. The circuit features extremely low standby current drain, and provision is made for either linear or foldback current limiting.

　　The LM723/LM723C is also useful in a wide range of other applications such as a shunt regulator, a current regulator or a temperature controller.

　　The LM723C is identical to the LM723 except that the LM723C has its performance ensured over a 0°C to +70°C temperature range, instead of −55°C to +125°C.

　　Features

　　150 mA Output Current Without External Pass Transistor

　　Output Currents in Excess of 10A Possible by Adding External Transistors

　　Input Voltage 40V Max

　　Output Voltage Adjustable from 2V to 37V

　　Can be Used as Either a Linear or a Switching Regulator

　　All trademarks are the property of their respective owners.