Datasheet

LTC2970/LTC2970-1
36
29701fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
0308 REV C • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC2920-1/LTC2920-2 Single/Dual Power Supply Margining Controllers Symmetric/Asymmetric High and Low Voltage Margining
LTC2921/LTC2922 Power Supply Trackers with Input Monitors 3 (LTC2921) or 5 (LTC2922) Remote Sense Switches
LTC2923 Power Supply Tracking Controller Up to 3 Supplies
LTC2924 Quad Power Supply Sequencer Voltage Monitoring and Sequence Error Detection and Reporting
LTC2925 Multiple Power Supply Tracking Controller Power Good Timer, Remote Sense Switch
LTC2926 MOSFET Controller Power Supply Tracker Up to 3 Modules
LTC2927 Single Power Supply Tracker Point of Load Applications
TYPICAL APPLICATIO
U
OUT
FB
0.1μF
0.1μF
I–
I+
I
2
C BUS
SMBUS
COMPATIBLE
LOAD
DC/DC
CONVERTER 0
SGND
10k
29701 TA01
RUN/SS
IN
V
IN
LTC2970
ALERT
SCL
SDA
GPIO_0
RGND
REF
12V
IN
GND
PGND
OUT
FB
I–
I+
LOAD
DC/DC
CONVERTER 1
SGND
RUN/SS
IN
V
IN
PGND
ASEL0 ASEL1
V
DD
GPIO_CFG
V
IN0_BM
V
IN0_BP
V
IN0_AP
V
OUT0
I
OUT0
V
IN0_AM
GPIO_1
V
IN1_BM
V
IN1_BP
V
IN1_AP
V
OUT1
I
OUT1
V
IN1_AM
()
R50
R30
R20
R10 R40
R51
R31
R21
R11 R41
8V TO 15V
0.1μF
10
9
20
17
18
19
4
3
11
1
14
2
16
8
7
12
5
13
6
15
23
24
212225
Figure 8. Typical LTC2970 Application Circuit for
DC/DC Converters with External Feedback Resistors