Parameter 参数 | Symbol 符号 | Conditions 条件 | MC7815 LM7815 | 单位 |
| 最小 | 典型 | 最大 |
|
| Output Voltage 输出电压 | VO | TJ =+25℃ | 14.4 | 15 | 15.6 | V |
| 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI =17.5V to 30V | 14.25 | 15 | 15.75 |
| Line Regulation 线性调整率 (Note1) | Regline | TJ =+25℃ | VI =17.5V to 30V | - | 11 | 300 | mV |
| VI =20V to 26V | - | 3 | 150 |
| Load Regulation 负载调整率 (Note1) | Regload | TJ =+25℃ | IO =5mA to 1.5A | - | 12 | 300 | mV |
| IO =250mA to 750mA | - | 4 | 150 |
| Quiescent Current 静态电流 | IQ | TJ =+25℃ | - | 5.2 | 8.0 | mA |
| Quiescent Current Change 静态电流变化 | ΔIQ | IO =5mA to 1.0A | - | - | 0.5 | mA |
| VI =17.5V to 30V | - | - | 1.0 |
| Output Voltage Drift 输出电压漂移 | ΔVO/ΔT | IO =5mA | - | -1 | - | mV/℃ |
| Output Noise Voltage 输出噪声电压 | VN | f =10Hz to 100KHz, TA =+25℃ | - | 90 | - | μV/Vo |
| Ripple Rejection 纹波抑制 | RR | f =120Hz VI =18.5V to 28.5V | 54 | 70 | - | dB |
| Dropout Voltage 电压差 | VDrop | IO =1A, TJ=+25℃ | - | 2 | - | V |
| Output Resistance 输出电阻 | rO | f =1KHz | - | 19 | - | mΩ |
| Short Circuit Current 短路电流 | ISC | VI =35V, TA=+25℃ | - | 250 | - | 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 | 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) | RθJC | 5 | ℃/W |
| Thermal Resistance Junction-Air热阻(结到空气) (TO-220) | RθJA | 65 | ℃/W |
| Operating Temperature Range工作温度范围 | TOPR | 0 ~ +125 | ℃ |
| Storage Temperature Range储存温度范围 | TSTG | -65 ~ +150 | ℃ |
图1 78XX内部电路图
图2 78XX参照测试电路
图3 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
