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LTC2953I

Push Button On/Off Controller with Voltage Monitoring

Linear Technology 

LTC2953

TYPICAL APPLICATION

FDN360P

VIN

VOUT

R14

8.4V 2150k

R5

R9

100k

100k

DC/DC

3.3V

UVLO

VIN

EN

SHDN

ON/OFF

R13

23.2k

PFI

R12

196k

PB

GND

LTC2953-2

VM

RST

PFO

INT

KILL

PDT

R3 R11

499k 100k

R10

R2

100k

100k

R1

100k

1μF

tPDT = 6.4 SECONDS

RST

PFO

INT SYSTEM

KILL LOGIC

2953 F25

Figure 25. PowerPath Controller with Low Battery Detect

RELATED PARTS

PART NUMBER

LTC2900

LTC2904/LTC2905

LTC2909

LTC2912

LTC2950/LTC2951

LTC2952

LTC2954

LTC4055

LTC4411

LTC4412HV

DESCRIPTION

COMMENTS

Programmable Quad Supply Monitor

Adjustable Reset, 10-Lead MSOP and 3mm × 3mm DFN Packages

Pin-Programmable Dual Supply Monitors

Adjustable Reset and Tolerance, 8-Lead SOT-23 and 3mm × 2mm DFN Packages

Precision Tripple/Dual Input UV, OV and Negative 6.5V Shunt Regulator for High Voltage Operation

Voltage Monitor

Single UV/OV Monitor

3mm × 2mm DFN, 8-Pin ThinSOT Packages

Push Button On/Off Controllers

High Voltage, Low Power Push Button Controller

Push Button Power Path Controller with

Supervisor

Automatic Low Loss Switchover Between DC Sources

Push Button On/Off Controller with μP Interrupt Allow Controlled Software System Shutdown

USB Power Controller and Li-Ion Charger

Automatic Switchover, Charges 1-Cell Li-Ion Batteries

2.6A Low Loss Ideal Diode in ThinSOT

No External MOSFET, Automatic Switching Between DC Sources

PowerPath Controller in ThinSOT

Efficient Diode-ORing, Automatic Switching Between DC Sources, 3V to 36V

20 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

2953f

LT 0607 • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2007

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