Datasheet

MAX8566
High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
DD
= V
EN
= 3.3V, V
FB
= 0.5V, V
SYNC
= 0V, T
A
= -40°C to +85°C, unless otherwise noted. Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
R
FREQ
= 50kΩ 0.8 1.2
Switching Frequency V
IN
= 2.5V or 3.3V
R
FREQ
= 23.3kΩ 1.7 2.3
MHz
Minimum Off-Time V
IN
= 2.5V or 3.3V 90 ns
Maximum Duty Cycle R
FREQ
= 50kΩ, V
IN
= 2.5V or 3.3V 87 %
RMS Output Current 10 A
ENABLE/SOFT-START
EN Input Logic-Low Threshold 0.7 V
EN Input Logic-High Threshold 1.65 V
Monotonic start 30 45
MODE Input Threshold V
IN
= 2.3V to 3.6V
No monotonic start 20
% of
V
DD
EN, MODE Input Current V
EN
or V
MODE
= 0V or 3.6V, V
DD
= 3.6V 1 µA
Soft-Start Charging Current V
SS
= 0.3V 5 12 µA
SYNC
Capture Range V
IN
= 2.3V to 3.6V 0.25 2.40 MHz
t
LO
100
Pulse Width V
IN
= 2.3V to 3.6V
t
HI
100
ns
V
IH
0.4
Input Threshold V
IN
= 2.3V to 3.6V
V
IL
1.6
V