DESCRIPTION

The LM138/LM238/LM338 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 5A over a 1.2V to 32V output range. They are exceptionally easy to use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation comparable to many commercial power supplies. The LM138 family is supplied in a standard 3-lead transistor package.

.GUARANTEED 7A PEAK OUTPUT CURRENT

.GUARANTEED 5A OUTPUT CURRENT

.ADJUSTABLE OUTPUT DOWN TO 1.2V

.LINE REGULATION TYPICALLY 0.005 /V

.LOAD REGULATION TYPICALLY 0.1

.GUARANTEED THERMAL REGULATION

.CURRENT LIMIT CONSTANT WITH TEMPERATURE

.STANDARD 3-LEAD TRANSISTOR PACKAGE

LM338K属于集成电路（IC） > 线性 + 开关稳压器。意法半导体（ST）集团制造生产的LM338K稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。