diff --git a/README.md b/README.md
index e09d322..42c4dd8 100644
--- a/README.md
+++ b/README.md
@@ -20,16 +20,28 @@ Opperation protections:
     - Under/Over Voltage
     - Thermal Shutdown    
 
+## Specifications
 
-## Theory of opperation
-### Based on Diodes [AP66300](https://www.diodes.com/assets/Datasheets/AP66300.pdf)
+*Based on Diodes [AP66300](https://www.diodes.com/assets/Datasheets/AP66300.pdf)*
  - Vin      : 5[V] to 50[V]
  - Vout     : 0.8[V] to 45[V] 
  - Iout     : 3[A] Max
  - Eff.     : 85%-95%
  - Freq     : 300[Khz] to 2.8[MHz]
  - θJA      : 50 °C/W
- - SoftStar : Yes 
-## How to use it
+ - SoftStar : Yes
+
+ |Parameter |min|max|unit               |
+ |----------|---|---|-------------------|
+ |Vin       |5  | 50|[V] Volts          |
+ |Vout      |0.8| 45|[V] Volts          |
+ |Iout      |-  |3  |[A] Amper          |
+ |Efficiency|85 |95 |[] %               |
+ |Frequency |0.3 |2.8|[MHz] mega Hertz  |
+ ||50||[°C/W]|
+
+
+ ## Pinout
+
 
 ## References