LTC2924 Linear Technology, LTC2924 Datasheet - Page 15

• Manufacturer Part Number: LTC2924
• Description: Quad Power Supply Sequencer
• Manufacturer: Linear Technology

TYPICAL APPLICATIO S
10V/DIV
2V/DIV
2V/DIV
2V/DIV
CONTROLLER
EARLY
Power-Up Sequence
SYSTEM
3.3V
5V
1V
5V
25ms/DIV
0.1µF
0.1µF
0.1µF
0.1µF
U
10k
150nF
10k
Q1
Series MOSFET Power Supply Sequencer
2924 TA02b
Q2
150nF
5V
3.3V
1V
DONE
ON
TMR
Q3
Q4
OUT1
OUT2
OUT3
OUT4
ON
DONE
FAULT
TMR
PGT
LTC2924
GND
V
CC
HYS/CFG
IN1
IN2
IN3
IN4
0.1µF
10V/DIV
2V/DIV
2V/DIV
2V/DIV
52.3k
11.8k
49.9k
2924 TA02a
Q1-Q4: IRL3714S
ALL RESISTORS 1%
7.68k
45.3k
Power-Down Sequence
6.04k
1.69k
25ms/DIV
1.62k
3.09k
V
V
V
V
V
V
V
V
ON
OFF
ON
OFF
ON
OFF
ON
OFF
= 0.93V
= 2.79V
= 4.21V
= 3.32V
= 0.91V
= 2.73V
= 3.76V
= 2.80V
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2924 TA02c
LTC2924
5V
3.3V
1V
DONE
ON
TMR
15
2924fa