Datasheet

LTC2923
20
2923fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2003
LT/TP 1104 1K REV A • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
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TM
Controller Operates from 1.2V to 12V, Allows Supply Sequencing
LTC2920 Power Supply Margining Controller Single or Dual Versions, Symmetric as Symmetric High and Low Margining
LTC2921/LTC2922 Power Supply Tracker with Input Monitors Includes 3 (LTC2921) or 5 (LTC2922) Remote Sense Switches
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Sense Switch
LT
®
4220 Dual Supply Hot Swap Controller ±2.7V to ±16.5V, Supply Tracking Mode
LTC4230 Triple Hot Swap Controller with Multifunction 1.7V to 16.5V, Active Inrush Limiting, Fast Comparator
Current Control
LTC4253 – 48V Hot Swap Controller and Supply Sequencer Floating Supply from –15V, Active Current Limiting,
Enables Three DC/DC Converters
Hot Swap is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO S
U
Daisy-Chained Application
C
GATE
10nF
V
CC
R
ONB
138k
3.3V
R
TB
R
TB
R
FA
1.8V
SLAVE1
R
FB
R
TA
R
TA
R
ONA
100k
ON FB1
GATE
LTC2923
GND
2923 TA03
RAMP
R
FA
1.5V
SLAVE2
R
FB
RAMPBUF
TRACK1
TRACK2
FB2
DC/DC
IN
FB = 1.235V OUT
DC/DC
IN
FB = 0.8V OUT
V
CC
0.1µF
0.1µF
3.3V
R
TB1
R
TB2
R
FA1
3.3V
SLAVE1
R
FB1
R
TA2
R
TA1
ON FB1
GATE
LTC2923
GND
RAMP
R
FA2
2.5V
SLAVE2
R
FB2
RAMPBUF
TRACK1
TRACK2
FB2
DC/DC
IN
FB = 1.235V OUT
DC/DC
IN
FB = 0.8V OUT
High Voltage Supply Application
C
GATE
10nF
V
CC
R
ONB
138k
3.3V
R
TB1
R
TB2
R
FA1
12V
SLAVE1
R
FB1
R
TA2
R
TA1
R
ONA
100k
ON FB1
GATE
LTC2923
GND
2923 TA04
RAMP
R
FA2
5V
SLAVE2
R
FB2
RAMPBUF
TRACK1
TRACK2
FB2
DC/DC
IN
FB = 1.235V OUT
DC/DC
IN
FB = 0.8V OUT
0.1µF