Electrical Characteristics 电气特性 (MC7912A) LM7912A
(VI = -18V, 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. 单位 Output Voltage 输出电压 VO TJ=+25℃ -11.75 -12 -12.25 V IO = 5mA to 1A, PO ≤ 15W VI = -15.5V to -27V -11.5 -12 -12.5 Line Regulation 线性调整率(Note1) ΔVO TJ=+25℃ VI = -14.5V to -30V - 12 240 mV VI = -16V to -22V - 6 120 Load Regulation 负载调整率(Note1) (Note1) ΔVO TJ=+25℃ IO = 5mA to 1.5A - 12 240 mV TJ =+25℃ IO = 250mA to 750mA - 4 120 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 = -15V to -30V - 0.1 1 Temperature Coefficient of VD 温度系数 ΔVo/ΔT IO = 5mA - -0.8 - mV/℃ Output Noise Voltage 输出噪声电压 VN f = 10Hz to 100KHz TA =+25℃ - 200 - 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
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