LTC1473IGNPBF, LTC1473IGNTRPBF, LTC1473L Selling Leads, Datasheet
MFG:Linear Package Cooled:NA/ D/C:07+
LTC1473IGNPBF, LTC1473IGNTRPBF, LTC1473L Datasheet download
Part Number: LTC1473IGNPBF
MFG: Linear
Package Cooled: NA/
D/C: 07+
LTC1473IGNPBF, LTC1473IGNTRPBF, LTC1473L
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Info of LTC1473IGNPBF
Info of LTC1473IGNTRPBF
Info of LTC1473L
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About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About LTC1473L
PDF/DataSheet Download
Datasheet: LTC1473L
File Size: 331288 KB
Manufacturer: Linear
Download : Click here to Download
LTC1473L General Description
The LTC®1473L provides reliable and efficient switching between two DC power sources. This device drives two external sets of back-to-back N-channel MOSFET switches to route power to the input of a low voltage system.
An internal boost regulator provides the voltage to fully enhance the logic-level N-channel MOSFET switches while an internal undervoltage lock-out circuit keeps the system alive down to 2.8V. The LTC1473L senses current to limit inrush between the batteries and the system supply capacitor during switchover transitions or during fault conditions.
A user-programmable timer monitors the time the MOSFET switches are in current limit and latches them off when the programmed time is exceeded. A unique "2-diode" logic mode ensures system start-up regardless of which input receives power first.
LTC1473L Maximum Ratings
GA1, GB1, GA2, GB2 ........................................ 0.3 to 20V
SAB1, SAB2 ..................................................... 0.3 to 10V
SW, VGG ......................................................... 0.3 to 20V
IN1, IN2, DIODE ...............................................0.3V to 7V
Junction Temperature (Note 2) ............................. 125°C
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range ................. 65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................... 300°C
LTC1473L Features
Power Path Management for Systems with Multiple DC Sources
Switches and Isolates Sources from 3.3V to 10V
All N-Channel Switching to Reduce Power Losses and System Cost
Built-In Step-Up Regulator for N-Channel Gate Drive
Capacitor Inrush and Short-Circuit Current Limited
User-Programmable Timer Prevents Overdissipation During Current Limiting
Undervoltage Lockout Prevents Operation with Low Inputs
Small Footprint: 16-Pin Narrow SSOP
Switches and Isolates Sources from 3.3V to 10V
All N-Channel Switching to Reduce Power Losses and System Cost
Built-In Step-Up Regulator for N-Channel Gate Drive
Capacitor Inrush and Short-Circuit Current Limited
User-Programmable Timer Prevents Overdissipation During Current Limiting
Undervoltage Lockout Prevents Operation with Low Inputs
Small Footprint: 16-Pin Narrow SSOP
LTC1473L Typical Application
Portable Computers
Portable Instruments
Fault Tolerant Computers
Battery-Backup Systems
3.3V/5V Power Management
Portable Instruments
Fault Tolerant Computers
Battery-Backup Systems
3.3V/5V Power Management
LTC1473L Connection Diagram
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