三端稳压 7 8 0 5 和 7 9 0 5 稳压原理及典型电路 外形引脚排列图管脚图 图 4 纹波抑制电路 外形引脚排列图管脚图 图 4 纹波抑制电路 图5 负载调节控制电路 图6 与79XX 系列三端稳压构成的正负对称输出电压电路图 图7 典型应用电路图 图8 TO-220 封装图片 图9 D-PAK 封装图 LM 7905 中文资料-M C7905-管脚图-参数-三端稳压集成电路-封装-引脚图-典型应用电路图 Electrical Characteristics 电气特性 (MC7905/LM7905) (VI = -10V, IO = 500mA, 0℃ ≤TJ ≤ +125℃, CI =2.2μF, CO =1μF, unless otherwise specified.) Parameter 参数 Symbol 符号 Conditions 条件 最小. 典型. 最大. Unit Output Voltage 输出电压 VO TJ=+25℃ - 4.8 - 5.0 - 5.2 V IO = 5mA to 1A, PO ≤ 15W VI = -7V to -20V - 4.75 -5.0 - 5.25 Line Regulation (Note1) 线性调整率 ΔVO TJ=+25℃ VI = -7V to -20V IO = 1A - 5 50 mV VI = -8V to -12V IO = 1A - 2 25 VI = -7.5Vto -25V - 7 50 VI = -8V to -12V IO = 1A - 7 50 Load Regulation 负载调整率(Note1) (Note1) ΔVO TJ = +25℃ IO = 5mA to 1.5A - 10 100 mV TJ =+25℃ IO = 250mA to 750mA - 3 50 Quiescent Current 静态电流 IQ TJ =+25℃ - 3 6 mA Quiescent Current Change 静态电流变化 ΔIQ IO = 5mA to 1A - 0.05 0.5 mA VI = -8V to -25V - 0.1 0.8 Temperature Coefficient of VD 温度系数 ΔVo/ΔT IO = 5mA - - 0.4 - mV/℃ Output Noise Voltage 输出噪声电压 VN f = 10Hz to 100KHz TA =+25℃ - 40 - μV Ripple Rejection 纹波抑制 RR f = 120Hz ΔVI = 10V 54 60 - dB Dropout Voltage 电压差 VD TJ=+25℃ IO = 1A - 2 - V Short Circuit Current 短路电流 ISC TJ =+25℃, VI = -35V - 300 - mA Peak Current 峰值电流 IPK TJ =+25℃ - 2.2 - A 三端稳压集成电路极限参数： Parameter 参数 Symbol 符号 Value 数值 单位 Input Voltage 输入电压 (for VO =5V to 18V) VI 35 V (for VO =24V) VI 40 V Thermal Resistance Junction-Cases 热阻(结到壳) (TO-220)...
