MAX8566 Maxim Integrated Products, MAX8566 Datasheet - Page 18

• Manufacturer Part Number: MAX8566
• Description: PWM Internal-Switch Step-Down Regulator
• Manufacturer: Maxim Integrated Products

2) Connect input and output capacitors to the power
3) Keep the high-current paths as short and wide as
High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
Figure 5. Transfer Function for Type 3 Compensation
18
ground plane; connect all other capacitors to the sig-
nal ground plane.
possible. Keep the path of switching current short
and minimize the loop area formed by LX, the output
capacitors, and the input capacitors.
______________________________________________________________________________________
GAIN
(dB)
TRANSFER FUNCTION
POWER-STAGE
COMPENSATION
TRANSFER
FUNCTION
THE FIRST AND
SECOND ZEROS
DOUBLE POLE
f
4) Connect IN, LX, and PGND separately to a large
5) Ensure all feedback connections are short and
6) Route high-speed switching nodes away from sensi-
copper area to help cool the IC to further improve
efficiency and long-term reliability.
direct. Place the feedback resistors and compensa-
tion components as close to the IC as possible.
tive analog areas (FB, COMP).
THE SECOND
POLE
OPEN-LOOP
GAIN
THE THIRD
POLE