LT3688 LINER [Linear Technology], LT3688 Datasheet - Page 7

• Manufacturer Part Number: LT3688
• Description: Dual 800mA Step-Down Switching Regulator with Power-On Reset
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
0.730
0.725
0.720
0.715
0.710
–50 –25
Power-On Reset Threshold
vs Temperature
0
100000
10000
TEMPERATURE (°C)
1000
0.01
100
25
0.1
30
25
20
15
10
10
0.001
5
0
1
–50 –25
Reset Timeout Period (t
vs Temperature
Watchdog Window Lower
Boundary (t
50
75 100
0.1
C
0
POR
TEMPERATURE (°C)
WDL
25
= 4700pF
C
125 150
WDT
3688 G23
) vs Capacitance
50
10
(nF)
75
1000
RST
100 125 150
700
600
500
400
300
200
100
)
0
0.1
3688 G27
3688 G29
Typical Transient Duration
vs Comparator Overdrive
100000
OVERDRIVE VOLTAGE (% of V
1
10
100000
100000
10000
10000
1000
1000
0.01
100
100
0.1
0.1
UV
10
10
0.001
0.001
1
1
)
Reset Timeout Period (t
vs Capacitance
Watchdog Window Upper
Boundary (t
3688 G24
T
A
100
= 25°C unless otherwise noted.
0.1
0.1
WDU
C
C
25
20
15
10
WDT
POR
5
0
–50 –25
) vs Capacitance
10
10
Watchdog Window Mode Period
vs Temperature
(nF)
(nF)
1000
1000
RST
C
0
WDT
TEMPERATURE (°C)
)
25
= 1000pF
3688 G30
3688 G28
100000
100000
50
LT3688
75
100 125 150
3688 G26
7
3688f