LTC1473L
PRODUCTIONDual Low Voltage PowerPath™ Switch Driver
- Part Models
- 2
- 1ku List Price
- Starting From $6.47
Overview
- 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
The LTC1473L 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 switch-over 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.
Applications
- Portable Computers
- Portable Instruments
- Fault Tolerant Computers
- Battery-Backup Systems
- 3.3V/5V Power Management
Documentation
Data Sheet 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1473LCGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1473LCGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC1473LCGN#PBF | PRODUCTION | |
| LTC1473LCGN#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC1473LCGN#PBF | PRODUCTION | |
| LTC1473LCGN#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC1473LCGN#PBF | PRODUCTION | |
| LTC1473LCGN#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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LTspice
Models for the following parts are available in LTspice:
- LTC1473L
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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