MC7818CT 查看數據表（PDF） - Fairchild Semiconductor

零件编号

产品描述 (功能)

生产厂家

MC7818CT

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

MC78XX/LM78XX/MC78XXA

Input

CI

MC78XX/LM78XX

Co

Output

Figure 9. Constant Current Regulator

Notes:

(1) To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the

Output voltage. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input

ripple voltage.

(2) CI is required if regulator is located an appreciable distance from power Supply filter.

(3) CO improves stability and transient response.

Input

CI

MC78XX/LM78XX

Co

Output

IRI ≥ 5IQ

VO = VXX(1+R2/R1)+IQR2

Figure 10. Circuit for Increasing Output Voltage

Input

CI

MC7805

LM7805

LM741

Output

Co

IRI ≥5 IQ

VO = VXX(1+R2/R1)+IQR2

Figure 11. Adjustable Output Regulator (7 to 30V)

22

Share Link: