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 | |