Datasheet

MAX8566
High-Efficiency, 10A, PWM
Internal-Switch Step-Down Regulator
_______________________________________________________________________________________ 9
I
OUT
(2A/div)
V
OUT
AC-COUPLED
(50mV/div)
5A
0
t = 10µs/div
LOAD TRANSIENT (0 TO 5A)
MAX8566 toc13
0A
I
L
(2A/div)
V
OUT
(10mV/div)
V
LX
(2V/div)
12A
10A
3V
0V
t = 400ns/div
FULL-LOAD SWITCHING WAVEFORMS
MAX8566 toc14
0V
I
IN
(5A/div)
V
EN
(2V/div)
V
OUT
(1V/div)
V
PWRGD
(2V/div)
7A
(PEAK)
0A
3.3V
0V
1.8V
3V
0V
t = 400µs/div
STARTUP INTO 0.18Ω LOAD
(R
LOAD
= 0.18Ω)
MAX8566 toc15
0°
0dB
GAIN
(10dB/div)
PHASE
(45°/div)
1 10 100 1000
GAIN/PHASE OF THE VOLTAGE LOOP
MAX8566 toc12
FREQUENCY (kHz)
56°
147 kHz
Typical Operating Characteristics (continued)
(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.)