LTC2919
16
2919f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2008
LT 0208 • PRINTED IN USA
TYPICAL APPLICATIO
U
RELATED PARTS
Powered from 12V, +5V
OUT
is Sequenced to Start-up First,
Followed by –5V
OUT
, with ±5V UV Monitor, 200ms Timeout
PART NUMBER DESCRIPTION COMMENTS
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5V/2.5V, 3.3V and ADJ
4.725V, 3.118V, 1V Threshold (±0.75%)
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FAIL
Timing Specifi cations
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and ADJ
Adjustable Reset and Watchdog Time-Outs
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Reset
Individual Monitor Outputs in MSOP/5-Lead SOT-23
LTC1985-1.8 Micropower Triple Supply Monitor with Push-Pull
Reset Output
5-Lead SOT-23 Package
LTC2900 Programmable Quad Supply Monitor Adjustable Reset, 10-Lead MSOP and 3mm × 3mm 10-Lead DFN
Package
LTC2901 Programmable Quad Supply Monitor Adjustable Reset and Watchdog Timer, 16-Lead SSOP Package
LTC2902 Programmable Quad Supply Monitor Adjustable Reset and Tolerance, 16-Lead SSOP Package, Margining
Functions
LTC2903 Precision Quad Supply Monitor 6-Lead SOT-23 Package, Ultralow Voltage Reset
LTC2904/LTC2905 3-State Programmable Precision Dual Supply Monitor Adjustable Tolerance and Reset Timer, 8-Lead SOT-23 Package
LTC2906/LTC2907 Precision Dual Supply Monitor 1-Selectable and
1 Adjustable
Separate V
CC
Pin, RST/RST Outputs/Adjustable Reset Timer
LTC2908 Precision Six Supply Monitor (Four Fixed and
2 Adjustable)
8-Lead SOT-23 and DFN Packages
LTC2909 Precision, Dual Input UV, OV and Negative Voltage
Monitor
8-Lead SOT-23 and DFN Packages
LTC2912-LTC2914 Single/Dual/Quad UV and OV Voltage Monitors Separate V
CC
Pin, Adjustable Reset Timer, H-Grade Temperature Range
LTC2915-LTC2918 Single Voltage Monitor with 27 Unique Thresholds Manual Reset, Watchdog, TSOT-8/MSOP-10 and 3mm × 2mm DFN
Package, H-Grade Temperature Range
LT6700 Micropower, Low Voltage, Dual Comparator with
400mV Reference
6-Lead SOT-23 Package
V
CC
LTC2919-2.5
ADJ1
ADJ2
REF OUT2
OUT1
SEL
RST
2919 TA06
TMR
GND
PWRGD
+5V
C
BYP
0.1µF
R
PU2
10k
R
CC
4.7k
R
P2
115k
R
P1
13.7k
R
N2
137k
R
N1
13.3k
R
PU3
10k
+5V
–5V
+12V
DC/DC
CONVERTER
DC/DC
CONVERTER
SHDN
SYS_RESET
