LTC2960
TYPICAL APPLICATION
BUCK CONVERTER
NOT ALL LT3991 COMPONENTS SHOWN
5V
V
6.6V < V < 36V
IN
V
OUT
IN
OUTPUT
R3
10M
C2
47μF
16V
R2
6.04M
LT3991
EN
R5
3.48M
LTC2960-1
GND
1.8V
V
OUT
ADJ
C1
0.1μF
25V
CC
+
IN
OUT
LT3009-1.8
OUTPUT
R6
1M
C3
IN
SHDN
1μF
15ms DELAY
RST
GND
10V
U1
R8
1.3M
R4
402k
R1
402k
MR
RT
GND
R9
1M
LTC2960-1
V
CC
RT
ADJ
+
U2 IN
V
SUPPLY UVLO = 6.410V
IN
200ms DELAY
1.8V SUPPLY UVLO = 3.863V
RESET THRESHOLD = 1.693V
OUT RST
RST
MR
R7
402k
GND
2960 F14
Figure 13. Micropower Power Supply Sequencer and Supervisor
RELATED PARTS
PART NUMBER
LTC1326
DESCRIPTION
COMMENTS
Micropower Triple Supply Monitor for 5V/2.5V, 3.3V and ADJ
Micropower Triple Supply Monitor for 2.5V/5V, 3.3V and ADJ
Micropower Triple Supply Monitor with Open-Drain Reset
Micropower Triple Supply Monitor with Open-Drain Reset
Micropower Triple Supply Monitor with Push-Pull Reset Output
4.725V, 3.118V, 1V Threshold ( 0.75%) and ADJ
Adjustable Reset and Watchdog Timeouts
Individual Monitor Outputs in MSOP
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LTC1726
LTC1727
LTC1728
LTC1985
5-Lead SOT-23 Package
LTC2900/LTC2901/ Programmable Quad Supply Monitor
LTC2902
Adjustable Reset, Watchdog Timer and Tolerance, 10-Lead
MSOP and DFN Packages
LTC2903
Precision Quad Supply Monitor
6-Lead SOT-23 and DFN Packages
8-Lead SOT-23 and DFN Packages
LTC2904/LTC2905/ Three-State Programmable Precision Dual Supply Monitor
LTC2906/LTC2907
LTC2908
LTC2909
Precision Six-Supply Monitor (Four Fixed and Two Adjustable)
8-Lead SOT-23 and DFN Packages
Precision Triple/Dual Input UV, OV and Negative Voltage Monitor
Shunt Regulated V Pin, Adjustable Threshold and Reset,
CC
8-Lead SOT-23 and DFN Packages
LTC2910
Octal Positive/Negative Voltage Monitor
Separate V Pin, Eight Inputs, Up to Two Negative Monitors
CC
Adjustable Reset Timer, 16-Lead SSOP and DFN Packages
LTC2912/LTC2913/ Single/Dual/Quad UV and OV Voltage Monitors
LTC2914
Separate V Pin, Adjustable Reset Timer
CC
LTC2915/LTC2916/ Single Voltage Supervisors with 27 Pin-Selectable Thresholds
LTC2917/LTC2918
Manual Reset and Watchdog Functions, 8- and 10-Lead
TSOT-23, MSOP and DFN Packages
LTC2934
Ultralow Power Supervisor with ADJ and PFI Inputs
500nA Quiescent Current, 2mm × 2mm 8-Lead DFN and
TSOT-23 Packages
LTC2935
Ultralow Power Supervisor with Eight Pin-Selectable Thresholds
500nA Quiescent Current, 2mm × 2mm 8-Lead DFN and
TSOT-23 Packages
2960f
LT 0312 • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
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© LINEAR TECHNOLOGY CORPORATION 2012
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