器件名称:
LM317KCE3
功能描述:
3-TERMINAL ADJUSTABLE REGULATOR
文件大小:
743.46KB 共22页
简 介:
LM317 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS044R – SEPTEMBER 1997 – REVISED APRIL 2007 FEATURES Output Voltage Range Adjustable From 1.25 V to 37 V Output Current Greater Than 1.5 A Internal Short-Circuit Current Limiting DCY (SOT-223) PACKAGE (TOP VIEW) Thermal Overload Protection Output Safe-Area Compensation KC (TO-220) PACKAGE (TOP VIEW) KCS (TO-220) PACKAGE (TOP VIEW) OUTPUT INPUT OUTPUT ADJUST OUTPUT OUTPUT INPUT OUTPUT ADJUST INPUT OUTPUT ADJUST KTE PACKAGE (TOP VIEW) KTT (TO-263) PACKAGE (TOP VIEW) OUTPUT INPUT OUTPUT ADJUST INPUT OUTPUT ADJUST DESCRIPTION/ORDERING INFORMATION The LM317 is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators. In addition to having higher performance than fixed regulators, this device includes on-chip current limiting, thermal overload protection, and safe operating-area protection. All overload protection remains fully functional, even if the ADJUST terminal is disconnected. The LM317 is versatile in its applications, including uses in programmable output regulation and local on-card regulation. Or, by connecting a fixed resistor between the ADJUST and OUTPUT terminals, the LM317 can function as a precision current regulator. An optiona……
