Datasheet

MAX8566
High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
_______________________________________________________________________________________ 7
Note 2: Specifications to -40°C are guaranteed by design and not production tested.
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
SYNCOUT
Frequency Range V
DD
= 2.3V to 3.6V 0.25 2.40 MHz
Phase Shift from SYNC or
Internal Oscillator
Frequency = 1MHz 160 230 Degrees
V
OH
V
DD
-
0.4
Output Voltage
I
SYNCOUT
= ±1mA,
V
DD
= 2.3V to 3.6V
V
OL
0.4
V
POWER-GOOD
Threshold Voltage V
FB
falling, 3mV hysteresis 85 93
% of
V
REF
Fal l i ng - E d g e D eg l i tch 30 80 µs
PWRGD Output Voltage I
PWRGD
= 4mA 0.3 V
Typical Operating Characteristics
(Typical values are at V
IN
= V
DD
= 3.3V, V
OUT
= 1.8V, R
FREQ
= 50kΩ, I
OUT
= 10A, and T
A
= +25°C.)
EFFICIENCY vs. LOAD CURRENT
V
IN
= V
LSS
= 3.3V
MAX8566 toc01
LOAD CURRENT (A)
EFFICIENCY (%)
101
65
70
75
80
85
90
95
100
60
0.1 100
V
OUT
= 2.5V
V
OUT
= 1.8V
EFFICIENCY vs. LOAD CURRENT
V
IN
= V
LSS
= 2.5V
MAX8566 toc02
LOAD CURRENT (A)
EFFICIENCY (%)
101
65
70
75
80
85
90
95
100
60
0.1 100
V
OUT
= 1.8V
V
OUT
= 1.5V
EFFICIENCY vs. LOAD CURRENT
V
IN
= 2.5V, V
LSS
= 3.3V
MAX8566 toc03
LOAD CURRENT (A)
EFFICIENCY (%)
101
65
70
75
80
85
90
95
100
60
0.1 100
V
OUT
= 1.8V
V
OUT
= 1.5V
V
OUT
= 0.8V