参数资料
型号: LM7912CT
厂商: Fairchild Semiconductor
文件页数: 15/18页
文件大小: 0K
描述: IC REG LDO -12V 1A TO-220-3
标准包装: 50
稳压器拓扑结构: 负,固定式
输出电压: -12V
输入电压: 可下调至 -35V
电压 - 压降(标准): 2V @ 1A
稳压器数量: 1
电流 - 输出: 1A
工作温度: 0°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-3
供应商设备封装: TO-220-3
包装: 管件
产品目录页面: 1220 (CN2011-ZH PDF)
其它名称: LM7912CTFS
Typical Applications
C I
+
2.2 μ F
1
+
1 μ F
Co
Input
2
KA79XX
LM79XX
3
Output
Figure 7. Negative Fixed Output Regulator
+15 V
1
KA7812
LM7812
3
+12 V
C1
+
0.33 μ F
2
Co +
1 μ F
*
1N4001
GND
+ 2.2 μ F
1 μ F +
C1
1
Co
*
1N4001
-15 V
2
KA7912
LM7912
3
-12 V
Figure 8. Split Power Supply ( ± 12 V / 1 A)
Notes:
14. To specify an output voltage, substitute voltage value for "XX".
15. C I is required if the regulator is located an appreciable distance from the power supply filter. For value given,
capacitor must be solid tantalum. If aluminium electronics are used, at least ten times the value shown should be
selected.
16. C O improves stability and transient response. If large capacitors are used, a high-current diode from input to
output (1N4001 or similar) should be introduced to protect the device from momentary input short circuit.
? 2002 Fairchild Semiconductor Corporation
KA79XX / KA79XXA / LM79XX Rev. 1.1.0
15
www.fairchildsemi.com
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LM7912CT/A+ 制造商:未知厂家 制造商全称:未知厂家 功能描述:Negative Fixed Voltage Regulator
LM7912CT/E7001851 制造商:Texas Instruments 功能描述:
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LM7912-ISO 制造商:未知厂家 制造商全称:未知厂家 功能描述:Negative Fixed Voltage Regulator