Datasheet

LTC2953
20
2953f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2007
LT 0607 • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LTC2900 Programmable Quad Supply Monitor Adjustable Reset, 10-Lead MSOP and 3mm × 3mm DFN Packages
LTC2904/LTC2905 Pin-Programmable Dual Supply Monitors Adjustable Reset and Tolerance, 8-Lead SOT-23 and 3mm × 2mm DFN Packages
LTC2909 Precision Tripple/Dual Input UV, OV and Negative
Voltage Monitor
6.5V Shunt Regulator for High Voltage Operation
LTC2912 Single UV/OV Monitor 3mm × 2mm DFN, 8-Pin ThinSOT Packages
LTC2950/LTC2951 Push Button On/Off Controllers High Voltage, Low Power Push Button Controller
LTC2952 Push Button Power Path Controller with
Supervisor
Automatic Low Loss Switchover Between DC Sources
LTC2954 Push Button On/Off Controller with μP Interrupt Allow Controlled Software System Shutdown
LTC4055 USB Power Controller and Li-Ion Charger Automatic Switchover, Charges 1-Cell Li-Ion Batteries
LTC4411 2.6A Low Loss Ideal Diode in ThinSOT No External MOSFET, Automatic Switching Between DC Sources
LTC4412HV PowerPath Controller in ThinSOT Effi cient Diode-ORing, Automatic Switching Between DC Sources, 3V to 36V
V
IN
V
OUT
ON/OFF
ENV
IN
VM
RST
PFO
INT
KILL
RST
PFO
INT
KILL
LTC2953-2
PDT
DC/DC
SHDN
SYSTEM
LOGIC
8.4V 3.3V
R3
499k
R11
100k
R10
100k
R1
100k
R2
100k
t
PDT
= 6.4 SECONDS
2953 F25
1μF
PB
GND
PFI
UVLO
R13
23.2k
R12
196k
R5
100k
R14
2150k
R9
100k
FDN360P
+
Figure 25. PowerPath Controller with Low Battery Detect