Topic: Electronics Engineering
A voltage regulator having $V_{ref}=1.25~V$ needs to generate 5 V output. Assume that $Iadj=100\mu A$ and R1 = 10 $k\Omega$. What should be value of R2?
- A. 30 $k\Omega$
- B. 33.33 $k\Omega$
- C. 16.66 $k\Omega$
- D. 22.22 $k\Omega$
Answer: C. 16.66 $k\Omega$
Explanation: $5=1.25+(100\times10^{-6}+\frac{1.25}{10\times10^{3}})R2$. $\therefore R2=16.66~k\Omega$.