LTC4357 - Positive High Voltage Ideal Diode Controller
The LTC®4357 is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode. When used in diode-OR and high current diode applications, the LTC4357 reduces power consumption, heat dissipation, voltage loss and PC board area.
The LTC4357 easily ORs power sources to increase total system reliability. In diode-OR applications, the LTC4357 controls the forward voltage drop across the MOSFET to ensure smooth current transfer from one path to the other without oscillation. If the power source fails or is shorted, a fast turn-off minimizes reverse current transients.
Features
Typical Application  | Applications
Packaging  |
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|---|---|---|---|
| LTC4357CDCB#PBF | 2x3 DFN-6 | C | $2.43 | |
| LTC4357CDCB#TRMPBF | 2x3 DFN-6 | C | $2.43 | $1.75 |
| LTC4357CDCB#TRPBF | 2x3 DFN-6 | C | $2.43 | $1.70 |
| LTC4357CMS8#PBF | MS-8 | C | $2.43 | $1.70 |
| LTC4357CMS8#TRPBF | MS-8 | C | $1.75 | |
| LTC4357HDCB#PBF | 2x3 DFN-6 | H | $3.36 | |
| LTC4357HDCB#TRMPBF | 2x3 DFN-6 | H | $3.36 | $2.40 |
| LTC4357HDCB#TRPBF | 2x3 DFN-6 | H | $3.36 | $2.35 |
| LTC4357HMS8#PBF | MS-8 | H | $3.36 | $2.35 |
| LTC4357HMS8#TRPBF | MS-8 | H | $2.41 | |
| LTC4357IDCB#PBF | 2x3 DFN-6 | I | $2.91 | |
| LTC4357IDCB#TRMPBF | 2x3 DFN-6 | I | $2.91 | $2.09 |
| LTC4357IDCB#TRPBF | 2x3 DFN-6 | I | $2.91 | $2.04 |
| LTC4357IMS8#PBF | MS-8 | I | $2.91 | $2.04 |
| LTC4357IMS8#TRPBF | MS-8 | I | $2.09 | |
| LTC4357MPMS8 | MS-8 | MP | $7.29 | $5.10 |
| LTC4357MPMS8#PBF | MS-8 | MP | $7.29 | $5.10 |
| LTC4357MPMS8#TR | MS-8 | MP | $5.16 | |
| LTC4357MPMS8#TRPBF | MS-8 | MP | $5.16 |
Demo Boards
| Part Number | Description | Price |
|---|---|---|
| DC1203A | LTC4357 Positive High Voltage Ideal Diode Controller | $50.00 |
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- DN549 - Powering Altera Arria 10 FPGA and Arria 10 SoC: Tested and Verified Power Management Solutions
- R536 - Reliability Data
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- LTC4357 Footprints and Symbols
- LTC4357 Demo Circuit - 12V Solar Battery Charger
