(VI =-23V, IO=40mA, CI=0.33iF, CO=0.1μF,0℃≤TJ≤+125℃, unless otherwise specified除非另有说明)
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 ℃ | -14.4 | -15.0 | -15.6 | V | ||
Line Regulation 线性调整率(Note1) | ΔVO | TJ=+25 ℃ | -17.5V≥VI≥-30V | - | - | 300 | mV | |
-20V≥VI≥-30V | - | - | 250 | mV | ||||
Load Regulation 负载调整率 (Note1) | ΔVO | TJ=+25 ℃ | 1.0mA≤IO≤100mA | - | - | 150 | mV | |
1.0mA≤IO≤40mA | - | - | 75 | mV | ||||
Output Voltage输出电压 | VO | -17.5V≥VI≥-30V, 1.0mA≤IO≤40mA | -14.25 | - | -15.75 | V | ||
VI=-23V, 1.0mA≤IO≤70mA | -14.25 | - | -15.75 | V | ||||
Quiescent Current 静态电流 | IQ | TJ=+25℃ | - | - | 6.0 | mA | ||
TJ=+125℃ | - | - | 6.5 | |||||
Quiescent Current Change 静态电流变化 | with line | ΔIQ | -20V≥VI≥-30V | - | - | 1.5 | mA | |
with load | ΔIQ | 1.0mA≤IO≤40mA | - | - | 0.1 | mA | ||
Output Noise Voltage 输出噪声电压 | VN | TA=+25℃,10Hz ≤f≤100KHz | - | 90 | - | μV | ||
Ripple Rejection 纹波抑制 | RR | f=120Hz, -18.5V≥VI≥-28.5V TJ=+25℃ | 34 | 39 | - | dB | ||
Dropout Voltage 电压差 | VD | TJ=+25℃ | - | 1.7 | - | V |
Note 极限参数:
图1 LM79LXXX引脚排列图 | ||||||||||||||||||||||||
图2 LM79LXXX内部电路图 | ||||||||||||||||||||||||
图3 LM79LXXX典型测试电路图 图4 正负电压对称输出电路
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