LTC2927
16
2927fb
© LINEAR TECHNOLOGY CORPORATION 2006
LT 0308 REV B • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
PART NUMBER DESCRIPTION COMMENTS
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
LTC2923 Power Supply Tracking Controller Controls 3 Supplies for Tracking or Sequencing
LTC2924 Quad Power Supply Sequencer Controls 4 Supplies for Sequencing
LTC2925 Multiple Power Supply Tracking Controller with
Power Good Timeout
Controls 4 Supplies for Tracking or Sequencing
LTC2926 MOSFET-Controlled Power Supply Tracker Active Tracking Control with Series MOSFETs
LTC2928 Multichannel Power Supply Sequencer
and Supervisor
Programmable with External Components; No Software Required
LT4220 Dual Supply Hot Swap
™
Controller ±2.7V to ±16.5V, Supply Tracking Mode
LTC4221 Dual Hot Swap Controller Operates from 1V to 13.5V, Allows Supply Sequencing, Active Current Limiting
LTC4230 Triple Hot Swap Controller with Multifunction
Current Control
1.7V to 16.5V, Active Inrush Limiting, Fast Comparator
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.
High Voltage Supply ApplicationSingle Supply Application
R
ONB
138k
R
ONA
100k
ON RAMP MASTER
SLAVE
12V
2927 TA02b
V
CC
3.3V
EARLY
V
IN
3.3V
LTC2927
GND
SDO
FB
RUN/SS IN
DC/DC
FB = 1.235V OUT
RAMPBUF
TRACK
0.1μF
C
RAMP
0.4μF
R
TB
78.7k
R
FB
311k
R
FA
35.7k
R
TA
28k
R
ONB
138k
R
ONA
100k
ON RAMP MASTER
1.8V
2927 TA02a
V
CC
3.3V
EARLY
V
IN
3.3V
LTC2927
GND
SDO
FB
RUN/SS IN
DC/DC
FB = 1.235V OUT
RAMPBUF
TRACK
0.1μF
C
RAMP
0.1μF
R
TB
16.5k
R
FB
16.5k
R
FA
35.7k
R
TA
13k
TYPICAL APPLICATIO
U
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