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LM78L12A中文资料来源于瑞达科技网
作者：佚名  文章来源：网络  点击数  更新时间：2011/1/13   文章录入：瑞达  责任编辑：瑞达科技
Electrical Characteristics 电气特性(MC78L12A/LM78L12A KA78L12) (Continued)
(VI=19V,IO=40mA,0℃≤TJ≤125℃,CI=0.33μF,CO=0.1μF,unless otherwise specified除非另有说明. (Note 1)
Parameter参数Symbol 符号Conditions 条件最小典型最大单位Output Voltage 输出电压 VO TJ = 25℃ 11.5 12 12.5 V Line Regulation 线性调整率(Note1) ΔVO TJ = 25℃ 14.5V ≤ VI ≤ 27V - 20 250 mV 16V ≤ VI ≤ 27V - 15 200 mV Load Regulation 负载调整率 (Note1) ΔVO TJ = 25℃ 1mA ≤ IO ≤ 100mA - 20 100 mV 1mA ≤ IO ≤ 40mA - 10 50 mV Output Voltage 输出电压 VO 14.5V ≤ VI ≤ 27V 1mA ≤ IO ≤ 40mA 11.4 - 12.6 V 14.5V ≤ VI ≤ VMAX (Note 2) 1mA ≤ IO ≤ 70mA 11.4 - 12.6 V Quiescent Current 静态电流 IQ TJ = 25℃ - 2.1 6.0 mA Quiescent Current Change 静态电流变化 With Line ΔIQ 16V ≤ VI ≤ 27V - - 1.5 mA With Load ΔIQ 1mA ≤ IO ≤ 40mA - - 0.1 mA Output Noise Voltage 输出噪声电压 VN TA = 25℃, 10Hz ≤ f ≤ 100kHz - 80 - μV/Vo Temperature Coefficient of VO温度系数 ΔVO/ΔT IO = 5mA - -1.0 - mV/℃ Ripple Rejection 纹波抑制 RR f = 120Hz, 15V ≤ VI ≤ 25V, TJ = 25℃ 37 65 - dB Dropout Voltage 电压差   VD TJ = 25℃ - 1.7 - V

Note:

1.最大稳态输出电流和输入电压依赖于散热或引线长度
 以上的数据代表脉冲试验条件下结温开始测试. 
 2.局部放电功耗≤0.75W

 

极限参数：

Parameter参数Symbol 符号Value 数值单位Input Voltage (for VO = 5V, 8V) 输入电压VI30V(for VO = 12V to 18V)35(for VO = 24V)40Operating Junction Temperature Range结温工作范围TJ0~ +150℃Storage Temperature Range储存温度范围TSTG-65~ +150℃

                               图1 LM78LXXX内部方框图

                      图1 LM78LXXX引脚排列图

                      图3 LM78LXXX典型测试电路图

                                     图4 LM78LXXX TO-92封装图片

                                   图5 LM78LXXX  8-SOP封装图片  

                                     图6 LM78LXXX SOT-89封装图片
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