Datasheet

LTC3773
9
3773fb
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
V
CC
UNDERVOLTAGE RESET (V)
4.4
3773 G24
4.2
4.1
4.3
4.0
3.9
3.8
3.7
POWER UP
SHUTDOWN
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
PULLUP CURRENT (μA)
1.2
3773 G25
0.9
0.6
0.3
0
I
SDB2
I
TRACK
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
PGOOD DELAY (μs)
180
3773 G26
170
160
150
140
130
110
120
100
PGOOD ↑
PGOOD ↓
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
THRESHOLD VOLTAGE (V)
3.3
3773 G27
2.9
2.5
2.1
1.7
1.3
0.9
0.5
HIGH THRESHOLD
FLOATING THRESHOLD
LOW THRESHOLD
V
CC
= 5V
V
CC
Undervoltage Reset Voltage
vs Temperature
TRACK and SDB Pull-Up Current
vs Temperature
PGOOD Delay vs Temperature
PLLIN/FC, PHASEMD, PLLFLTR,
Threshold Voltage vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50 –25 0 25 50 75 100 125
THRESHOLD VOLTAGE (V)
2
3773 G28
1
1.5
0.5
0
CHANNEL 2 ENABLE
CHANNEL 2 DISABLE
SDB2 SHUTDOWN
V
CC
= 5V
SDB2 Threshold Voltage
vs Temperature