Dual, 3A, 2MHz Step-Down Regulator
Typical Operating Characteristics (continued)
(VIN1 = VIN2 = 3.3V. MAX8833, circuit of Figure 6, TA = +25°C, unless otherwise noted.)
OUTPUT PEAK CURRENT LIMIT
vs. OUTPUT VOLTAGE
8
7
VOUT1
6
5
4
3
2
1
IL1
0
0.8 1.1 1.4 1.7 2.0 2.3 2.6
OUTPUT VOLTAGE (V)
SHORT CIRCUIT AND RECOVERY
MAX8833 toc11
OUTPUT SEQUENCING (EN2 = PWRGD1)
MAX8833 toc12
500mV/div VOUT1
1V/div
1ms/div
VOUT2
VPWRGD1
2A/div
VPWRGD2
0A
1ms/div
1V/div
2V/div
2V/div
VOUT1
OUTPUT TRACKING (EN1 = EN2)
MAX8833 toc13
1V/div
VOUT2
VPWRGD1
1V/div
2V/div
2V/div
EXTERNAL SYNCHRONIZATION
MAX8833 toc14
PULSE GENERATOR SIGNAL. A 10kΩ RESISTOR
IS CONNECTED BETWEEN THE PULSE
GENERATOR AND FSYNC
2V/div
2V/div
VLX1
VPWRGD2
VLX2
2V/div
1ms/div
DDR TRACKING 1.8V, 0.9V
400ns/div
6 _______________________________________________________________________________________